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Articles 31 - 60 of 4868

Full-Text Articles in Physical Sciences and Mathematics

Novel Integrated Strategies Toward Efficient And Stable Unassisted Photoelectrochemical Water Splitting, Liqun Wang, Wenping Si, Xinggang Hou, Mingxia Wang, Xiaoli Liu, Yuhang Ye, Feng Hou, Ji Liang Jan 2020

Novel Integrated Strategies Toward Efficient And Stable Unassisted Photoelectrochemical Water Splitting, Liqun Wang, Wenping Si, Xinggang Hou, Mingxia Wang, Xiaoli Liu, Yuhang Ye, Feng Hou, Ji Liang

Australian Institute for Innovative Materials - Papers

© 2020 Unassisted photoelectrochemical (PEC) water splitting for hydrogen evolution has been regarded as a sustainable route for the harvest and utilization of solar energy. To achieve such unassisted PEC water splitting, two novel integrated strategies have been developed: to design tandem structures of photoanodes/photocathodes and to construct hybrid devices of solar/PEC cells. Some key unsolved problems, however, still limit the further development of high-performance unassisted PEC water splitting, such as low efficiency, poor stability, and high cost. Herein, we present a brief summary of the latest development in this area and propose perspectives for further enhancing this state-of-the-art solar-to‑hydrogen …

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Na-Doped Zno Uv Filters With Reduced Photocatalytic Activity For Sunscreen Applications, Rafid Abdlateef Mueen, Michael L. F Lerch, Zhenxiang Cheng, Konstantin K. Konstantinov Jan 2020

Na-Doped Zno Uv Filters With Reduced Photocatalytic Activity For Sunscreen Applications, Rafid Abdlateef Mueen, Michael L. F Lerch, Zhenxiang Cheng, Konstantin K. Konstantinov

Australian Institute for Innovative Materials - Papers

Due to its physical and chemical stability in addition to its transparency in the visible region with ultraviolet protective activity, ZnO can be used in sunscreen applications. In our article, Na-doped zinc oxide nanoparticles were prepared in different concentrations by sol–gel and solvothermal techniques to reduce their photocatalytic activity. The photocatalytic activity of the doped samples was suppressed effectively at a concentration of 0.03 at% Na doping up to 90% by conducting the sol–gel process rather than the solvothermal process which resulted in about 70% photocatalytic reduction in a period of time from (0–30 min) when exposed to ultraviolet and …

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Fe/Co-Based Bimetallic Mof-Derived Co3fe7@Ncntfs Bifunctional Electrocatalyst For High-Efficiency Overall Water Splitting, Qunyao Yuan, Youxing Yu, Peter C. Sherrell, Jun Chen, Xiaofang Bi Jan 2020

Fe/Co-Based Bimetallic Mof-Derived Co3fe7@Ncntfs Bifunctional Electrocatalyst For High-Efficiency Overall Water Splitting, Qunyao Yuan, Youxing Yu, Peter C. Sherrell, Jun Chen, Xiaofang Bi

Australian Institute for Innovative Materials - Papers

© 2020 Wiley-VCH Verlag GmbH & Co. KGaA, Weinheim Electrocatalytic water splitting to produce hydrogen and oxygen is regarded as one of the most promising methods to generate clean and sustainable energy for replacing fossil fuels. However, the design and development of an efficient bifunctional catalyst for simultaneous generation of hydrogen and oxygen remains extremely challenging yet is critical for the practical implementation of water electrolysis. Here, we report a facile method to fabricate novel N-doped carbon nanotube frameworks (NCNTFs) by the pyrolysis of a bimetallic metal organic framework (MIL-88-Fe/Co). The resultant electrocatalyst, Co3Fe7@NCNTFs, exhibits excellent oxygen evolution reaction (OER) …

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Experimental Evaluation And Analytical Model Of The Pressure Generated By Elastic Compression Garments On A Deformable Human Limb Analogue, Christopher J. Richards, Julie R. Steele, Geoffrey M. Spinks Jan 2020

Experimental Evaluation And Analytical Model Of The Pressure Generated By Elastic Compression Garments On A Deformable Human Limb Analogue, Christopher J. Richards, Julie R. Steele, Geoffrey M. Spinks

Australian Institute for Innovative Materials - Papers

© 2020 Compression garments are extensively used for various therapeutic treatments and are expected to deliver accurate and reproducible compression pressures. This study focuses on developing an analytical model to predict the pressure generation by compression garments on human limb analogues. The analogues consisted of non-compressible and compressible cylinders that were chosen as the first step towards evaluating pressure generation on real human limbs. An experimental platform was developed to quantify the relationship between material properties, initial garment extension and pressure. A mathematical model was presented that provided greater accuracy in predicting the pressure generated by compression garments than the …

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Enhanced Potassium Ion Battery By Inducing Interlayer Anionic Ligands In Mos1.5se0.5 Nanosheets With Exploration Of The Mechanism, Haining Fan, Xingyong Wang, Haibo Yu, Qinfen Gu, Shan-Liang Chen, Zheng Liu, Xiao-Hua Chen, Wenbin Luo, Hua-Kun Liu Jan 2020

Enhanced Potassium Ion Battery By Inducing Interlayer Anionic Ligands In Mos1.5se0.5 Nanosheets With Exploration Of The Mechanism, Haining Fan, Xingyong Wang, Haibo Yu, Qinfen Gu, Shan-Liang Chen, Zheng Liu, Xiao-Hua Chen, Wenbin Luo, Hua-Kun Liu

Australian Institute for Innovative Materials - Papers

The strategy of inducing interlayer anionic ligands in 2D MoS1.5Se0.5 nanosheets is employed to consolidate the interlayer band gap and optimize the electronic structure for the potassium ion battery. It combines complementary advantages from two kinds of anionic ligands with high conductivity and good affinity with potassium ions. The potassium ion diffusion rate is accelerated as well by an optimized lower energy barrier for ion diffusion pathways, with the formation of highly reversible KMo3Se3 crystal other than K0.4MoS2/K2MoS4, which encounters a much slower electro/ion diffusion rate …

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Towards Agent-Based Traffic Simulation Using Live Data From Sensors For Smart Cities, Johan Barthelemy, Yan Qian, Pascal Perez Jan 2020

Towards Agent-Based Traffic Simulation Using Live Data From Sensors For Smart Cities, Johan Barthelemy, Yan Qian, Pascal Perez

SMART Infrastructure Facility - Papers

The Smart City and Internet-of-Things revolutions enable the collection of various types of data in real-time through sensors. This data can be used to improve the decision tools and simulations used by city planners. This paper presents a new framework for real-time traffic simulation integrating an agent-based methodology with live CCTV and other sensor data while respecting the privacy regulations. The framework simulates traffic flows of pedestrians, vehicles and bicycles and their interactions. The approach has been applied in Liverpool (NSW, Australia) showing promising preliminary results and can easily ingest additional sensor data, e.g. air quality.

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Sharkeye: Real-Time Autonomous Personal Shark Alerting Via Aerial Surveillance, Robert A. Gorkin Iii, Kye Adams, Matthew J. Berryman, Sam Aubin, Wanqing Li, Andrew R. Davis, Johan Barthelemy Jan 2020

Sharkeye: Real-Time Autonomous Personal Shark Alerting Via Aerial Surveillance, Robert A. Gorkin Iii, Kye Adams, Matthew J. Berryman, Sam Aubin, Wanqing Li, Andrew R. Davis, Johan Barthelemy

SMART Infrastructure Facility - Papers

While aerial shark spotting has been a standard practice for beach safety for decades, new technologies offer enhanced opportunities, ranging from drones/unmanned aerial vehicles (UAVs) that provide new viewing capabilities, to new apps that provide beachgoers with up-to-date risk analysis before entering the water. This report describes the Sharkeye platform, a first-of-its-kind project to demonstrate personal shark alerting for beachgoers in the water and on land, leveraging innovative UAV image collection, cloud-hosted machine learning detection algorithms, and reporting via smart wearables. To execute, our team developed a novel detection algorithm trained via machine learning based on aerial footage of real …

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Fabrication Of Aligned Biomimetic Gellan Gum-Chitosan Microstructures Through 3d Printed Microfluidic Channels And Multiple In Situ Cross-Linking Mechanisms, Thomas Robinson, Sepehr Talebian, Javad Foroughi, Zhilian Yue, Cormac Fay, Gordon G. Wallace Jan 2020

Fabrication Of Aligned Biomimetic Gellan Gum-Chitosan Microstructures Through 3d Printed Microfluidic Channels And Multiple In Situ Cross-Linking Mechanisms, Thomas Robinson, Sepehr Talebian, Javad Foroughi, Zhilian Yue, Cormac Fay, Gordon G. Wallace

SMART Infrastructure Facility - Papers

In this study we use a combination of ionic- and photo-cross-linking to develop a fabrication method for producing biocompatible microstructures using a methacrylated gellan gum (a polyanion) and chitosan (a polycation) in addition to lithium phenyl-2,4,6-trimethylbenzoylphosphinate (LAP) as the photoinitiator. This work involves the development of a low-cost, portable 3D bioprinter and a customized extrusion mechanism for controlled introduction of the materials through a 3D printed microfluidic nozzle, before being cross-linked in situ to form robust microstructure bundles. The formed microstructures yielded a diameter of less than 1 μm and a tensile strength range of ∼1 MPa. This study is …

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Leasing Or Repositioning Empty Containers? Determining The Time-Varying Guide Leasing Prices For Decision Making, Hao Hu, Bo Du, Marcella Bernardo Jan 2020

Leasing Or Repositioning Empty Containers? Determining The Time-Varying Guide Leasing Prices For Decision Making, Hao Hu, Bo Du, Marcella Bernardo

SMART Infrastructure Facility - Papers

Repositioning empty container and leasing container from leasing company are mainly the outcomes of imbalance in trade flows. How to make decision on repositioning or leasing remains a challenge in running shipping service efficiently and economically. To address such challenge, this study aims to derive guide leasing prices. If the realistic leasing price is lower than the guide price, shipping companies should consider leasing containers from leasing company; otherwise repositioning empty container is a more economical option. Both time-varying short-term and long-term guide leasing prices are determined in a shipping network with consideration of empty container devanning and laden container …

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A Case Study Of Wifi Sniffing Performance Evaluation, Yan Li, Johan Barthelemy, Shuai Sun, Pascal Perez, Bill Moran Jan 2020

A Case Study Of Wifi Sniffing Performance Evaluation, Yan Li, Johan Barthelemy, Shuai Sun, Pascal Perez, Bill Moran

SMART Infrastructure Facility - Papers

Mobile devices regularly broadcast WiFi probe requests in order to discover available proximal WiFi access points for connection. A probe request, sent automatically in the active scanning mode, consisting of the MAC address of the device expresses an advertisement of its presence. A real-time wireless sniffing system is able to sense WiFi packets and analyse wireless traffic. This provides an opportunity to obtain insights into the interaction between the humans carrying the mobile devices and the environment. Susceptibility to loss of the wireless data transmission is an important limitation on this idea, and this is complicated by the lack of …

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A Game-Based Approach To Exploring Gender Differences In Smallholder Decisions To Change Farming Practices: White Rice Production In Laos, Silva Larson, Anne Giger-Dray, Tina Cornioley, Manithaythip Thephavanh, Phomma Thammavong, Sisavan Vorlasan, John Connell, Magnus Moglia, Peter Case, Kim Alexander, Pascal Perez Jan 2020

A Game-Based Approach To Exploring Gender Differences In Smallholder Decisions To Change Farming Practices: White Rice Production In Laos, Silva Larson, Anne Giger-Dray, Tina Cornioley, Manithaythip Thephavanh, Phomma Thammavong, Sisavan Vorlasan, John Connell, Magnus Moglia, Peter Case, Kim Alexander, Pascal Perez

SMART Infrastructure Facility - Papers

© 2020 by the authors. What influences farmers' decisions to adopt agricultural technologies is an important question for international agricultural research projects. There are often interpersonal differences between women and men that influence the adoption of decisions and behaviours, but few studies in the literature focus on these factors. We describe a game-based approach to explore decision-making processes underpinning the adoption of new farming technologies and practices in Lao People's Democratic Republic. Sowing a different rice variety is the tailored technology. The game explored adoption behaviours influencing decisions on transitioning from growing glutinous rice, a traditional variety preferred for consumption, …

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Indoor Navigation And Mapping: Performance Analysis Of Uwb-Based Platform Positioning, A Masiero, Harris Perakis, Jelena Gabela, Charles Toth, Vassilis Gikas, Guenther Retscher, Salil Goel, Allison Kealy, Z Koppányi, W Blaszczak-Bak, Yan Li, Dorota Grejner-Brzezinska Jan 2020

Indoor Navigation And Mapping: Performance Analysis Of Uwb-Based Platform Positioning, A Masiero, Harris Perakis, Jelena Gabela, Charles Toth, Vassilis Gikas, Guenther Retscher, Salil Goel, Allison Kealy, Z Koppányi, W Blaszczak-Bak, Yan Li, Dorota Grejner-Brzezinska

SMART Infrastructure Facility - Papers

© 2020 International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences - ISPRS Archives. The increasing demand for reliable indoor navigation systems is leading the research community to investigate various approaches to obtain effective solutions usable with mobile devices. Among the recently proposed strategies, Ultra-Wide Band (UWB) positioning systems are worth to be mentioned because of their good performance in a wide range of operating conditions. However, such performance can be significantly degraded by large UWB range errors; mostly, due to non-line-of-sight (NLOS) measurements. This paper considers the integration of UWB with vision to support navigation and mapping …

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Virtual Reality May Be The Next Frontier In Remote Mental Health Care, Shiva Pedram Jan 2020

Virtual Reality May Be The Next Frontier In Remote Mental Health Care, Shiva Pedram

SMART Infrastructure Facility - Papers

In recent years, experts have focused on finding better ways to improve remotely delivered mental health care. Now, virtual reality (VR) may pave the way for myriad new opportunities.

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The War On Abandoned Trolleys Can Be Won. Here's How, Johan Barthelemy Jan 2020

The War On Abandoned Trolleys Can Be Won. Here's How, Johan Barthelemy

SMART Infrastructure Facility - Papers

As more commercial precincts develop, we see more shopping trolleys abandoned far away from the shops they belong to. Programs are in place to tackle this issue but haven't solved the problem. We need a more sophisticated multi-pronged approach, including smart use of technology, to limit the number of abandoned trolleys and their impact.

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Traffic Exhaust To Wildfires: Pm2.5 Measurements With Fixed And Portable, Low-Cost Lorawan-Connected Sensors, Hugh I. Forehead, Johan Barthelemy, Bilal Arshad, Nicolas R. Verstaevel, Owen F. Price, Pascal Perez Jan 2020

Traffic Exhaust To Wildfires: Pm2.5 Measurements With Fixed And Portable, Low-Cost Lorawan-Connected Sensors, Hugh I. Forehead, Johan Barthelemy, Bilal Arshad, Nicolas R. Verstaevel, Owen F. Price, Pascal Perez

SMART Infrastructure Facility - Papers

© 2020 Forehead et al. This is an open access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited. Air pollution with PM2.5 (particulate matter smaller than 2.5 micro-metres in diameter) is a major health hazard in many cities worldwide, but since measuring instruments have traditionally been expensive, monitoring sites are rare and generally show only background concentrations. With the advent of low-cost, wirelessly connected sensors, air quality measurements are increasingly being made in places where many people spend time …

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Interplay Between Cold Densification And Malic Acid Addition (C4h6o5) For The Fabrication Of Near-Isotropic Mgb2 Conductors For Magnet Application, Md. Shahriar Al Hossain, Carmine Senatore, Yusuke Yamauchi, Mislav Mustapic, Daniel Gajda, Dipak Patel, Aslam Khan, Jung Ho Kim, Andrzej Morawski, Rene Flukiger Jan 2020

Interplay Between Cold Densification And Malic Acid Addition (C4h6o5) For The Fabrication Of Near-Isotropic Mgb2 Conductors For Magnet Application, Md. Shahriar Al Hossain, Carmine Senatore, Yusuke Yamauchi, Mislav Mustapic, Daniel Gajda, Dipak Patel, Aslam Khan, Jung Ho Kim, Andrzej Morawski, Rene Flukiger

Australian Institute for Innovative Materials - Papers

© 2020 The effect of cold high pressure densification (CHPD) on anisotropy of the critical current density (Jc) in « in situ » single core binary and alloyed MgB2 tapes has been determined as a function of temperatures at 4.2 K, 20 K and 25 K as well as at applied magnetic fields up to 19 T. The study includes binary and C4H6O5 (malic acid) doped MgB2 tapes before and after CHPD. It is remarkable that the CHPD process not only improved the Jc values, in particular at the higher magnetic fields, but also decreased the anisotropy ratio, Γ = …

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Principals And Strategies For Constructing A Highly Reversible Zinc Metal Anode In Aqueous Batteries, Chao Han, Weijie Li, Hua-Kun Liu, Shi Xue Dou, Jiazhao Wang Jan 2020

Principals And Strategies For Constructing A Highly Reversible Zinc Metal Anode In Aqueous Batteries, Chao Han, Weijie Li, Hua-Kun Liu, Shi Xue Dou, Jiazhao Wang

Australian Institute for Innovative Materials - Papers

© 2020 Elsevier Ltd Among all the electrochemical energy storage systems, zinc-based batteries, such as zinc-air, zinc-metal, zinc-ion batteries, etc., have been recognized as an important group of candidates that could be potential alternatives to the currently dominant lead-acid and lithium-ion battery systems, because they have many unbeatable merits, including direct use of zinc metal as electrode; compatible with low cost, non-flammable, and environement-friendly aqueous electrolyte; assembly in ambient conditions; environmental benignity; and high safety. Currently, however, the capacitance, cycle life, and safety of zinc-based batteries were significantly degraded by zinc-water interaction problems that took place on the zinc metal …

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Strategies Of Engineering 2d Nanomaterial-Based Electrocatalysts Toward Hydrogen Evolution Reaction, Yaping Chen, Guoqiang Zhao, Wenping Sun Jan 2020

Strategies Of Engineering 2d Nanomaterial-Based Electrocatalysts Toward Hydrogen Evolution Reaction, Yaping Chen, Guoqiang Zhao, Wenping Sun

Australian Institute for Innovative Materials - Papers

© 2020, The Author(s). Electrochemical water splitting driven by renewable energy-derived electricity is considered as the most promising pathway for delivering clean and sustainable hydrogen production. The key to achieving an efficient water splitting process is developing highly active electrocatalysts. Two-dimensional (2D) nanomaterials hold great promise in the electrocatalysis field due to their unique physicochemical properties. Some of them are not active enough because of the poor intrinsic activity, low density of active sites or low electrical conductivity. Some are inert for electrocatalytic reactions, but are able to work as the functional substrates for hybrid electrocatalysts. Thus, tremendous strategies have …

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Atomic-Scale Origin Of Ultrahigh Piezoelectricity In Samarium-Doped Pmn-Pt Ceramics, Chunchun Li, Bin Xu, Dabin Lin, Shujun Zhang, Laurent Bellaiche, Thomas R. Shrout, Fei Li Jan 2020

Atomic-Scale Origin Of Ultrahigh Piezoelectricity In Samarium-Doped Pmn-Pt Ceramics, Chunchun Li, Bin Xu, Dabin Lin, Shujun Zhang, Laurent Bellaiche, Thomas R. Shrout, Fei Li

Australian Institute for Innovative Materials - Papers

Designing high-performance piezoelectric materials based on atomic-scale calculations is highly desired in recent years, following the understanding of the structure-property relationship of state-of-the-art piezoelectric materials. Previous mesoscale simulations showed that local structural heterogeneity plays an important role in the piezoelectric property of ferroelectrics; that is, larger structural heterogeneity leads to higher piezoelectricity. In this Rapid Communication, by combining first-principles calculations and experimental characterizations, we explored the atomic-scale origin of the high piezoelectricity for samarium-doped Pb(Mg1/3Nb2/3)O3-PbTiO3 (PMN-PT) ceramics, which possesses the highest piezoelectric d33 of ∼1500pCN-1 among all known piezoelectric ceramics. The impacts of various dopants on local structure and piezoelectric …

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Thermally Actuated Hydrogel Bead Based Braided Artificial Muscle, Bidita Binte Salahuddin, Holly Warren, Geoffrey M. Spinks Jan 2020

Thermally Actuated Hydrogel Bead Based Braided Artificial Muscle, Bidita Binte Salahuddin, Holly Warren, Geoffrey M. Spinks

Australian Institute for Innovative Materials - Papers

© 2020 IOP Publishing Ltd. Braided (McKibben) artificial muscles are one of the most attractive biomimetic actuators since they exhibit similar static and dynamic performance to skeletal muscles. One disadvantage of these systems, when intended for portable applications, is the need for a compressor or pump to provide pressurised fluid for muscle activation. An alternative is to use an expandable material, such as a hydrogel. This work investigates the development of hydrogel-based braided artificial muscles which can produce mechanical work through controlled hydrogel swelling in the presence of water. Hydrogel bead-filled braided meshes were prepared where no internal bladder was …

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Biomimetic Corneal Stroma Using Electro-Compacted Collagen, Zhi Chen, Xiao Liu, Jingjing You, Yihui Song, Eva Tomaskovic-Crook, Gerard L. Sutton, Jeremy Micah Crook, Gordon G. Wallace Jan 2020

Biomimetic Corneal Stroma Using Electro-Compacted Collagen, Zhi Chen, Xiao Liu, Jingjing You, Yihui Song, Eva Tomaskovic-Crook, Gerard L. Sutton, Jeremy Micah Crook, Gordon G. Wallace

Australian Institute for Innovative Materials - Papers

© 2020 Acta Materialia Inc. Engineering substantia propria (or stroma of cornea) that mimics the function and anatomy of natural tissue is vital for in vitro modelling and in vivo regeneration. There are, however, few examples of bioengineered biomimetic corneal stroma. Here we describe the construction of an orthogonally oriented 3D corneal stroma model (3D-CSM) using pure electro-compacted collagen (EC). EC films comprise aligned collagen fibrils and support primary human corneal stromal cells (hCSCs). Cell-laden constructs are analogous to the anatomical structure of native human cornea. The hCSCs are guided by the topographical cues provided by the aligned collagen fibrils …

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3d Printing Of Cytocompatible Graphene/Alginate Scaffolds For Mimetic Tissue Constructs, Jianfeng Li, Xiao Liu, Jeremy Micah Crook, Gordon G. Wallace Jan 2020

3d Printing Of Cytocompatible Graphene/Alginate Scaffolds For Mimetic Tissue Constructs, Jianfeng Li, Xiao Liu, Jeremy Micah Crook, Gordon G. Wallace

Australian Institute for Innovative Materials - Papers

© Copyright © 2020 Li, Liu, Crook and Wallace. Tissue engineering, based on a combination of 3D printing, biomaterials blending and stem cell technology, offers the potential to establish customized, transplantable autologous implants using a patient‘s own cells. Graphene, as a two-dimensional (2D) version of carbon, has shown great potential for tissue engineering. Here, we describe a novel combination of graphene with 3D printed alginate (Alg)-based scaffolds for human adipose stem cell (ADSC) support and osteogenic induction. Alg printing was enabled through addition of gelatin (Gel) that was removed after printing, and the 3D structure was then coated with graphene …

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Highly Efficient Co3o4/Co@Ncs Bifunctional Oxygen Electrocatalysts For Long Life Rechargeable Zn-Air Batteries, Neng Yu, Chang Wu, Wen Huang, You Chen, Da Ruan, Kai Bao, Hui Chen, Yi Zhang, Yusong Zhu, Qing Huang, Weihong Lai, Yunxiao Wang, Hong Liao, Shi Sun, Yu Wu, Jiazhao Wang Jan 2020

Highly Efficient Co3o4/Co@Ncs Bifunctional Oxygen Electrocatalysts For Long Life Rechargeable Zn-Air Batteries, Neng Yu, Chang Wu, Wen Huang, You Chen, Da Ruan, Kai Bao, Hui Chen, Yi Zhang, Yusong Zhu, Qing Huang, Weihong Lai, Yunxiao Wang, Hong Liao, Shi Sun, Yu Wu, Jiazhao Wang

Australian Institute for Innovative Materials - Papers

© 2020 Elsevier Ltd Rational design and synthesis of high-performance bifunctional oxygen electrocatalysts are in high demand for metal air batteries. Herein, Co3O4/Co nano-heterojunctions tailored in nitrogen-doped porous graphitized carbon frameworks (Co3O4/Co@NCs) are synthesized via annealing Co-based metal-organic-frameworks (Co-based MOFs). This structure for electrocatalysts with a combination of mixed metallic Co species and encapsulating porous graphitized carbon offers an efficient charge/mass transport environment. In addition, the Co3O4/Co nano-heterostructured interfaces serve as efficient reactive sites to enhance oxygen electrocatalysis. Furthermore, the strong binding forces between nanoparticles and carbon frameworks through Co–N covalent bonds prevent the loss of nanoparticles from the electrocatalysts, …

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Constructing Phase Boundary In Agnbo3 Antiferroelectrics: Pathway Simultaneously Achieving High Energy Density And Efficiency, Nengneng Luo, Kai Han, Matthew Cabral, Xiaozhou Liao, Shujun Zhang, Changzhong Liao, Guangzu Zhang, Xiyong Chen, Qin Feng, Jing Li, Yuezhou Wei Jan 2020

Constructing Phase Boundary In Agnbo3 Antiferroelectrics: Pathway Simultaneously Achieving High Energy Density And Efficiency, Nengneng Luo, Kai Han, Matthew Cabral, Xiaozhou Liao, Shujun Zhang, Changzhong Liao, Guangzu Zhang, Xiyong Chen, Qin Feng, Jing Li, Yuezhou Wei

Australian Institute for Innovative Materials - Papers

© 2020, The Author(s). Dielectric capacitors with high energy storage density (Wrec) and efficiency (η) are in great demand for high/pulsed power electronic systems, but the state-of-the-art lead-free dielectric materials are facing the challenge of increasing one parameter at the cost of the other. Herein, we report that high Wrec of 6.3 J cm-3 with η of 90% can be simultaneously achieved by constructing a room temperature M2–M3 phase boundary in (1-x)AgNbO3-xAgTaO3 solid solution system. The designed material exhibits high energy storage stability over a wide temperature range of 20–150 °C and excellent cycling reliability up to 106 cycles. All …

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Biochar-Based Fertilizer: Supercharging Root Membrane Potential And Biomass Yield Of Rice, Jinkiat Chew, Longlong Zhu, Shaun Nielsen, Ellen Graber, David R. G Mitchell, Josip Horvat, Mohanad Hazim Mohammed, Minglong Liu, Lukas Van Zwieten, Scott Donne, Paul Munroe, Sarasadat Taherymoosavi, Ben Pace, Aditya Rawal, James Hook, Christopher Marjo, Donald Thomas, Genxing Pan, Lianqing Li, Rongjun Bian, Anna Mcbeath, Michael I. Bird, Torsten Thomas, Olivier Husson, Zakaria M. Solaiman, Stephen D. Joseph, Xiaorong Fan Jan 2020

Biochar-Based Fertilizer: Supercharging Root Membrane Potential And Biomass Yield Of Rice, Jinkiat Chew, Longlong Zhu, Shaun Nielsen, Ellen Graber, David R. G Mitchell, Josip Horvat, Mohanad Hazim Mohammed, Minglong Liu, Lukas Van Zwieten, Scott Donne, Paul Munroe, Sarasadat Taherymoosavi, Ben Pace, Aditya Rawal, James Hook, Christopher Marjo, Donald Thomas, Genxing Pan, Lianqing Li, Rongjun Bian, Anna Mcbeath, Michael I. Bird, Torsten Thomas, Olivier Husson, Zakaria M. Solaiman, Stephen D. Joseph, Xiaorong Fan

Australian Institute for Innovative Materials - Papers

2020 The Authors Biochar-based compound fertilizers (BCF) and amendments have proven to enhance crop yields and modify soil properties (pH, nutrients, organic matter, structure etc.) and are now in commercial production in China. While there is a good understanding of the changes in soil properties following biochar addition, the interactions within the rhizosphere remain largely unstudied, with benefits to yield observed beyond the changes in soil properties alone. We investigated the rhizosphere interactions following the addition of an activated wheat straw BCF at an application rates of 0.25% (g·g−1 soil), which could potentially explain the increase of plant biomass (by …

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A High-Kinetics Sulfur Cathode With A Highly Efficient Mechanism For Superior Room-Temperature Na-S Batteries, Zichao Yan, Yaru Liang, Jin Xiao, Weihong Lai, Wanlin Wang, Qingbing Xia, Yunxiao Wang, Qinfen Gu, Huanming Lu, Shulei Chou, Yong Liu, Hua-Kun Liu, Shi Xue Dou Jan 2020

A High-Kinetics Sulfur Cathode With A Highly Efficient Mechanism For Superior Room-Temperature Na-S Batteries, Zichao Yan, Yaru Liang, Jin Xiao, Weihong Lai, Wanlin Wang, Qingbing Xia, Yunxiao Wang, Qinfen Gu, Huanming Lu, Shulei Chou, Yong Liu, Hua-Kun Liu, Shi Xue Dou

Australian Institute for Innovative Materials - Papers

2020 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim Applications of room-temperature-sodium sulfur (RT-Na/S) batteries are currently impeded by the insulating nature of sulfur, the slow redox kinetics of sulfur with sodium, and the dissolution and migration of sodium polysulfides. Herein, a novel micrometer-sized hierarchical S cathode supported by FeS2 electrocatalyst, which is grown in situ in well-confined carbon nanocage assemblies, is presented. The hierarchical carbon matrix can provide multiple physical entrapment to polysulfides, and the FeS2 nanograins exhibit a low Na-ion diffusion barrier, strong binding energy, and high affinity for sodium polysulfides. Their combination makes it an ideal sulfur host …

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Light Soaking Effect Driven In Porphyrin Dye-Sensitized Solar Cells Using 1d Tio2 Nanotube Photoanodes, Jung-Ho Yun, Attila J. Mozer, Pawel W. Wagner, David Offier, Rose Amal, Yun Hau Ng Jan 2020

Light Soaking Effect Driven In Porphyrin Dye-Sensitized Solar Cells Using 1d Tio2 Nanotube Photoanodes, Jung-Ho Yun, Attila J. Mozer, Pawel W. Wagner, David Offier, Rose Amal, Yun Hau Ng

Australian Institute for Innovative Materials - Papers

© 2020 Light soaking (LS) effect on porphyrin (GD2) dye-sensitized solar cells (DSSCs) using well-ordered TiO2 nanotube (TNT) photoanodes was studied with different lengths of TNTs and LS treatment time. The TNT array possessing longer length and larger tube diameter had improved photoelectrochemical (PEC) property by generating larger photocurrent, and besides provided a larger surface area to yield more dye loading. The LS effect on GD2-applied DSSCs using TNT photoanodes was triggered off in the first 5 min of the LS treatment, and gradually increased during 60 min LS treatment. The improved PEC property and dye loading by longer TNT …

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Biobr Nanoflakes With Strong Kerr Nonlinearity Towards Hybrid Integrated Photonic Devices, Linnan Jia, Dandan Cui, Jiayang Wu, Haifeng Feng, Yunyi Yang, Tieshan Yang, Yang Qu, Yi Du, Weichang Hao, Baohua Jia, David Moss Jan 2020

Biobr Nanoflakes With Strong Kerr Nonlinearity Towards Hybrid Integrated Photonic Devices, Linnan Jia, Dandan Cui, Jiayang Wu, Haifeng Feng, Yunyi Yang, Tieshan Yang, Yang Qu, Yi Du, Weichang Hao, Baohua Jia, David Moss

Australian Institute for Innovative Materials - Papers

© 2020 SPIE. As a new group of advanced 2D layered materials, bismuth oxyhalides, i.e., BiOX (X = Cl, Br, I), have recently become of great interest. In this work, we characterize the third-order optical nonlinearities of BiOBr, an important member of the BiOX family. The nonlinear absorption and Kerr nonlinearity of BiOBr nanoflakes at both 800 nm and 1550 nm are characterized via the Z-Scan technique. Experimental results show that BiOBr nanoflakes exhibit a large nonlinear absorption coefficient β ∼ 10-7 m/W as well as a large Kerr coefficient n2 ∼ 10-14 m2/W. We also note that the n2 …

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A Long Cycle-Life High-Voltage Spinel Lithium-Ion Battery Electrode Achieved By Site-Selective Doping, Gemeng Liang, Zhibin Wu, Christophe R. Didier, Wenchao Zhang, Jing Cuan, Baohua Li, Kuan-Yu Ko, Po Hung, Cheng Lu, Yuanzhen Chen, Grzegorz Leniec, Slawomir Kaczmarek, Bernt Johannessen, Lars Thomsen, Vanessa K. Peterson, Wei Kong Pang, Zaiping Guo Jan 2020

A Long Cycle-Life High-Voltage Spinel Lithium-Ion Battery Electrode Achieved By Site-Selective Doping, Gemeng Liang, Zhibin Wu, Christophe R. Didier, Wenchao Zhang, Jing Cuan, Baohua Li, Kuan-Yu Ko, Po Hung, Cheng Lu, Yuanzhen Chen, Grzegorz Leniec, Slawomir Kaczmarek, Bernt Johannessen, Lars Thomsen, Vanessa K. Peterson, Wei Kong Pang, Zaiping Guo

Australian Institute for Innovative Materials - Papers

© 2020 Wiley-VCH Verlag GmbH & Co. KGaA, Weinheim Spinel LiNi0.5Mn1.5O4 (LNMO) is a promising cathode candidate for the next-generation high energy-density lithium-ion batteries (LIBs). Unfortunately, the application of LNMO is hindered by its poor cycle stability. Now, site-selectively doped LNMO electrode is prepared with exceptional durability. In this work, Mg is selectively doped onto both tetrahedral (8a) and octahedral (16c) sites in the Fd (Formula presented.) m structure. This site-selective doping not only suppresses unfavorable two-phase reactions and stabilizes the LNMO structure against structural deformation, but also mitigates the dissolution of Mn during cycling. Mg-doped LNMOs exhibit extraordinarily stable …

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Development Of Ceo2 Nanodot Encrusted Tio2 Nanoparticles With Reduced Photocatalytic Activity And Increased Biocompatibility Towards A Human Keratinocyte Cell Line, Alexander Morlando, Marcela Chaki Borras, Yaser Rehman, Shahnaz Bakand, Philip J. Barker, Ronald Sluyter, Konstantin K. Konstantinov Jan 2020

Development Of Ceo2 Nanodot Encrusted Tio2 Nanoparticles With Reduced Photocatalytic Activity And Increased Biocompatibility Towards A Human Keratinocyte Cell Line, Alexander Morlando, Marcela Chaki Borras, Yaser Rehman, Shahnaz Bakand, Philip J. Barker, Ronald Sluyter, Konstantin K. Konstantinov

Australian Institute for Innovative Materials - Papers

The cytotoxic and genotoxic effects of titanium dioxide (TiO2) nanoparticles when exposed to ultraviolet (UV) radiation, particularly wavelengths between 320-400 nm, has raised concern over their safe use in health and cosmetic related products such as sunscreens. Cerium dioxide (CeO2) nanoparticles have been demonstrated to display biocompatible properties and antioxidant activity due to redox cycling of the Ce3+/Ce4+ oxidation states. In this work, CeO2/TiO2 nanocomposites were prepared through a standard precipitation method at atomic concentrations (at%) of Ce relative to Ti of 2.5, 5 and 10 at%, with the aim of reducing the photocatalytic activity of the core TiO2 nanoparticles …

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