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Articles 271 - 300 of 1524
Full-Text Articles in Physical Sciences and Mathematics
Self-Healing Electrode With High Electrical Conductivity And Mechanical Strength For Artificial Electronic Skin, Hyeon Jun Sim, Hyunsoo Kim, Yongwoo Jang, Geoffrey M. Spinks, Sanjeev Gambhir, David L. Officer, Gordon G. Wallace, Seon Jeong Kim
Self-Healing Electrode With High Electrical Conductivity And Mechanical Strength For Artificial Electronic Skin, Hyeon Jun Sim, Hyunsoo Kim, Yongwoo Jang, Geoffrey M. Spinks, Sanjeev Gambhir, David L. Officer, Gordon G. Wallace, Seon Jeong Kim
Australian Institute for Innovative Materials - Papers
A self-healing electrode is an electrical conductor that can repair internal damage by itself, similar to human skin. Since self-healing electrodes are based on polymers and hydrogels, these components are still limited by low electrical conductivity and mechanical strength. In this study, we designed an electrically conductive, mechanically strong, and printable self-healing electrode using liquid crystal graphene oxide (LCGO) and silver nanowires (AgNWs). The conductive ink was easily prepared by simply mixing LCGO and AgNWs solutions. The ultrathin (3 μm thick) electrode can be printed in various shapes, such as a butterfly, in a freestanding state. The maximum conductivity and …
Carbon Nanotube Yarn For Fiber-Shaped Electrical Sensors, Actuators, And Energy Storage For Smart Systems, Yongwoo Jang, Sung Min Kim, Geoffrey M. Spinks, Seon Jeong Kim
Carbon Nanotube Yarn For Fiber-Shaped Electrical Sensors, Actuators, And Energy Storage For Smart Systems, Yongwoo Jang, Sung Min Kim, Geoffrey M. Spinks, Seon Jeong Kim
Australian Institute for Innovative Materials - Papers
Smart systems are those that display autonomous or collaborative functionalities, and include the ability to sense multiple inputs, to respond with appropriate operations, and to control a given situation. In certain circumstances, it is also of great interest to retain flexible, stretchable, portable, wearable, and/or implantable attributes in smart electronic systems. Among the promising candidate smart materials, carbon nanotubes (CNTs) exhibit excellent electrical and mechanical properties, and structurally fabricated CNT-based fibers and yarns with coil and twist further introduce flexible and stretchable properties. A number of notable studies have demonstrated various functions of CNT yarns, including sensors, actuators, and energy …
Critical Advances In Ambient Air Operation Of Nonaqueous Rechargeable Li-Air Batteries, Lili Liu, Haipeng Guo, Lijun Fu, Shulei Chou, Simon Thiele, Yu-Ping Wu, Jiazhao Wang
Critical Advances In Ambient Air Operation Of Nonaqueous Rechargeable Li-Air Batteries, Lili Liu, Haipeng Guo, Lijun Fu, Shulei Chou, Simon Thiele, Yu-Ping Wu, Jiazhao Wang
Australian Institute for Innovative Materials - Papers
Over the past few years, great attention has been given to nonaqueous lithium–air batteries owing to their ultrahigh theoretical energy density when compared with other energy storage systems. Most of the research interest, however, is dedicated to batteries operating in pure or dry oxygen atmospheres, while Li–air batteries that operate in ambient air still face big challenges. The biggest challenges are H2O and CO2 that exist in ambient air, which can not only form byproducts with discharge products (Li2O2), but also react with the electrolyte and the Li anode. To this end, recent progress in understanding the chemical and electrochemical …
Metallic State Two-Dimensional Holey-Structured Co3fen Nanosheets As Stable And Bifunctional Electrocatalysts For Zinc–Air Batteries, Haipeng Guo, Xuanwen Gao, Nengfei Yu, Zhi Zheng, Wenbin Luo, Chang Wu, Hua-Kun Liu, Jiazhao Wang
Metallic State Two-Dimensional Holey-Structured Co3fen Nanosheets As Stable And Bifunctional Electrocatalysts For Zinc–Air Batteries, Haipeng Guo, Xuanwen Gao, Nengfei Yu, Zhi Zheng, Wenbin Luo, Chang Wu, Hua-Kun Liu, Jiazhao Wang
Australian Institute for Innovative Materials - Papers
Exploring economically efficient electrocatalysts with robust bifunctional oxygen conversion catalytic activity and designing appropriate structures are essential to realize ideal zinc-Air batteries with high energy density and long lifespan. Two-dimensional metallic state Co3FeN nanosheets with a holey-structured architecture are designed and shown to exhibit enhanced catalytic properties owing to the complete exposure of the atoms in the large lateral surfaces and in the edges of pore areas, together with the lowest OH∗ adsorption energy on exposed surfaces due to bimetallic synergistic effects. Meanwhile, this porous architecture can not only accelerate electron transportation by its metallic state highly oriented crystallized structure, …
Stress Distortion Restraint To Boost The Sodium Ion Storage Performance Of A Novel Binary Hexacyanoferrate, Weijie Li, Chao Han, Wanlin Wang, Qingbing Xia, Shulei Chou, Qinfen Gu, Bernt Johannessen, Hua-Kun Liu, Shi Xue Dou
Stress Distortion Restraint To Boost The Sodium Ion Storage Performance Of A Novel Binary Hexacyanoferrate, Weijie Li, Chao Han, Wanlin Wang, Qingbing Xia, Shulei Chou, Qinfen Gu, Bernt Johannessen, Hua-Kun Liu, Shi Xue Dou
Australian Institute for Innovative Materials - Papers
© 2019 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim Mn-based hexacyanoferrate NaxMnFe(CN)6 (NMHFC) has been attracting more attention as a promising cathode material for sodium ion storage owing to its low cost, environmental friendliness, and its high voltage plateau of 3.6 V, which comes from the Mn2+/Mn3+ redox couple. In particular, the Na-rich NMHFC (x > 1.40) with trigonal phase is considered an attractive candidate due to its large capacity of ≈130 mAh g−1, delivering high energy density. Its unstable cycle life, however, is holding back its practical application due to the dissolution of Mn2+ and the trigonal-cubic phase transition during …
Superparamagnetic Nanoarchitectures For Disease-Specific Biomarker Detection, Mostafa Masud, Jongbeom Na, Muhammad Younus, Md Hossain, Yoshio Bando, Muhammad Shiddiky, Yusuke Yamauchi
Superparamagnetic Nanoarchitectures For Disease-Specific Biomarker Detection, Mostafa Masud, Jongbeom Na, Muhammad Younus, Md Hossain, Yoshio Bando, Muhammad Shiddiky, Yusuke Yamauchi
Australian Institute for Innovative Materials - Papers
© 2019 The Royal Society of Chemistry. The detection of clinically relevant disease-specific biomolecules, including nucleic acids, circulating tumor cells, proteins, antibodies, and extracellular vesicles, has been indispensable to understand their functions in disease diagnosis and prognosis. Therefore, a biosensor for the robust, ultrasensitive, and selective detection of these low-Abundant biomolecules in body fluids (blood, urine, and saliva) is emerging in current clinical research. In recent years, nanomaterials, especially superparamagnetic nanomaterials, have played essential roles in biosensing due to their intrinsic magnetic, electrochemical, and optical properties. However, engineered multicomponent magnetic nanoparticle-based current biosensors that offer the advantages of excellent stability …
Selenium@Hollow Mesoporous Carbon Composites For High-Rate And Long-Cycling Lithium/Sodium-Ion Batteries, Pan Xue, Yanjun Zhai, Nana Wang, Yaohui Zhang, Zhenxiao Lu, Yuanlin Liu, Zhongchao Bai, Baokun Han, Guifu Zou, Shi Xue Dou
Selenium@Hollow Mesoporous Carbon Composites For High-Rate And Long-Cycling Lithium/Sodium-Ion Batteries, Pan Xue, Yanjun Zhai, Nana Wang, Yaohui Zhang, Zhenxiao Lu, Yuanlin Liu, Zhongchao Bai, Baokun Han, Guifu Zou, Shi Xue Dou
Australian Institute for Innovative Materials - Papers
© 2019 Elsevier B.V. Selenium (Se) is a prospective candidate of electrode material for high-energy batteries. However, the low Se loading, volumetric expansion and polyselenide shuttling between cathode and anode are major factors to limit further development. To overcome above issues, the hollow carbon structure with interconnected mesopores is used to confine Se composite via a facile annealing treatment route. The Se/HMCS electrode exhibits excellent performance, including a long cycle life (710 mA h g−1 at the 800th cycle at 0.5 A g−1 for LIBs and 291 mA h g−1 at the 1500th cycle at 0.5 A g−1 for SIBs). …
Large-Scale Synthesis Of Mof-Derived Superporous Carbon Aerogels With Extraordinary Adsorption Capacity For Organic Solvents, Chaohai Wang, Jeonghun Kim, Jing Tang, Jongbeom Na, Yong Kang, Minjun Kim, Hyunsoo Lim, Yoshio Bando, Jiansheng Li, Yusuke Yamauchi
Large-Scale Synthesis Of Mof-Derived Superporous Carbon Aerogels With Extraordinary Adsorption Capacity For Organic Solvents, Chaohai Wang, Jeonghun Kim, Jing Tang, Jongbeom Na, Yong Kang, Minjun Kim, Hyunsoo Lim, Yoshio Bando, Jiansheng Li, Yusuke Yamauchi
Australian Institute for Innovative Materials - Papers
© 2019 Wiley-VCH Verlag GmbH & Co. KGaA, Weinheim Carbon aerogels (CAs) with 3D interconnected networks hold promise for application in areas such as pollutant treatment, energy storage, and electrocatalysis. In spite of this, it remains challenging to synthesize high-performance CAs on a large scale in a simple and sustainable manner. We report an eco-friendly method for the scalable synthesis of ultralight and superporous CAs by using cheap and widely available agarose (AG) biomass as the carbon precursor. Zeolitic imidazolate framework-8 (ZIF-8) with high porosity is introduced into the AG aerogels to increase the specific surface area and enable heteroatom …
3d Graphene-Containing Structures For Tissue Engineering, Jianfeng Li, Xiao Liu, Jeremy Micah Crook, Gordon G. Wallace
3d Graphene-Containing Structures For Tissue Engineering, Jianfeng Li, Xiao Liu, Jeremy Micah Crook, Gordon G. Wallace
Australian Institute for Innovative Materials - Papers
© 2019 Elsevier Ltd Graphene and its derivatives have been extensively explored in various fields and have shown great promise toward energy harvesting, environmental protection, and health care. 3D graphene-containing structures (3DGCSs) are especially endowed with useable features relating to physicochemical properties within the hierarchical architectures. Thus, 3DGCSs are increasingly being applied for tissue engineering because of their supportability of human cells and functionalization potential. This review focuses on recent progress in tissue engineering utilizing 3DGCSs, providing insights into fabrication, application, and constraints in bionic research.
Exfoliation Of Amorphous Phthalocyanine Conjugated Polymers Into Ultrathin Nanosheets For Highly Efficient Oxygen Reduction, Wenping Liu, Chiming Wang, Lijie Zhang, Houhe Pan, Wenbo Liu, Jun Chen, Dongjiang Yang, Yanjuan Xiang, Kang Wang, Jianzhuang Jiang, Xiangdong Yao
Exfoliation Of Amorphous Phthalocyanine Conjugated Polymers Into Ultrathin Nanosheets For Highly Efficient Oxygen Reduction, Wenping Liu, Chiming Wang, Lijie Zhang, Houhe Pan, Wenbo Liu, Jun Chen, Dongjiang Yang, Yanjuan Xiang, Kang Wang, Jianzhuang Jiang, Xiangdong Yao
Australian Institute for Innovative Materials - Papers
It is a significant challenge to develop a high-efficiency synthetic methodology to access fully conjugated 2D conjugated polymer (CP)/covalent organic framework (COF) nanosheets (NSs) that have great application potential for electronics and energy. Herein, we report the exfoliation of a series of amorphous ethynyl-linked phthalocyanine (Pc) CPs (MPc-CPs, M = Fe, Co, Fe0.5Co0.5) into ultrathin MPc-CP NSs. Random coupling between the four regioisomers (with D4h, D2h, C2v and Cs symmetry) of the two tetra-β-substituted phthalocyanine precursors endows the resulting phthalocyanine conjugated polymers MPc-CPs with intrinsic structural defects and a disordered framework on individual layers. This in turn induces a diminished …
Ionic And Electronic Properties Of The Topological Insulator Bi2te2se Investigated Via Β-Detected Nuclear Magnetic Relaxation And Resonance Of 8li, Ryan M. L. Mcfadden, Aris Chatzichristos, Kim H. Chow, David L. Cortie, Martin H. Dehn, Derek Fujimoto, Masrur D. Hossain, Huiwen Ji, Victoria L. Karner, Robert F. Kiefl, C. D. Philip Levy, Ruohong Li, Iain Mckenzie, Gerald D. Morris, Oren Ofer, Matthew R. Pearson, Monika Stachura, Robert J. Cava, W Andrew Macfarlane
Ionic And Electronic Properties Of The Topological Insulator Bi2te2se Investigated Via Β-Detected Nuclear Magnetic Relaxation And Resonance Of 8li, Ryan M. L. Mcfadden, Aris Chatzichristos, Kim H. Chow, David L. Cortie, Martin H. Dehn, Derek Fujimoto, Masrur D. Hossain, Huiwen Ji, Victoria L. Karner, Robert F. Kiefl, C. D. Philip Levy, Ruohong Li, Iain Mckenzie, Gerald D. Morris, Oren Ofer, Matthew R. Pearson, Monika Stachura, Robert J. Cava, W Andrew Macfarlane
Australian Institute for Innovative Materials - Papers
We report measurements on the high-temperature ionic and low-temperature electronic properties of the three-dimensional topological insulator Bi2Te2Se using ion-implanted 8Liβ-detected nuclear magnetic relaxation and resonance. With implantation energies in the range 5–28keV, the probes penetrate beyond the expected range of the topological surface state, but are still within 250nm of the surface. At temperatures above ∼150K, spin-lattice relaxation measurements reveal isolated 8Li+ diffusion with an activation energy EA=0.185(8)eV and attempt frequency τ−10=8±3×1011s−1 for atomic site-to-site hopping. At lower temperature, we find a linear Korringa-type relaxation mechanism with a field-dependent slope and intercept, which is accompanied by an anomalous field dependence …
A Comprehensive Review On Controlling Surface Composition Of Pt-Based Bimetallic Electrocatalysts, Binwei Zhang, Huiling Yang, Yunxiao Wang, Shi Xue Dou, Hua-Kun Liu
A Comprehensive Review On Controlling Surface Composition Of Pt-Based Bimetallic Electrocatalysts, Binwei Zhang, Huiling Yang, Yunxiao Wang, Shi Xue Dou, Hua-Kun Liu
Australian Institute for Innovative Materials - Papers
With increasing energy demands worldwide, significant efforts have been made to develop superior electrocatalysts for efficient energy conversion systems. Among all the electrocatalysts exploited, Pt-based bimetallic nanomaterials stand out by virtue of their high catalytic activity and relatively low cost due to the introduction of a nonprecious metal component. It should be noted that electrocatalytic reactions only take place on the surface of catalysts, so investigations of the surface composition of Pt-based bimetallic nanomaterials are necessary for practical electrocatalysts. In this review, recent studies on controlling the surface composition of Pt-based bimetallic catalysts for the oxygen reduction reaction, formic acid …
In Operando Mechanism Analysis On Nanocrystalline Silicon Anode Material For Reversible And Ultrafast Sodium Storage, Lei Zhang, Xianluo Hu, Chaoji Chen, Haipeng Guo, Xiaoxiao Liu, Gengzhao Xu, Haijian Zhong, Shuang Cheng, Peng Wu, Jiashen Meng, Yunhui Huang, Shi Xue Dou, Hua-Kun Liu
In Operando Mechanism Analysis On Nanocrystalline Silicon Anode Material For Reversible And Ultrafast Sodium Storage, Lei Zhang, Xianluo Hu, Chaoji Chen, Haipeng Guo, Xiaoxiao Liu, Gengzhao Xu, Haijian Zhong, Shuang Cheng, Peng Wu, Jiashen Meng, Yunhui Huang, Shi Xue Dou, Hua-Kun Liu
Australian Institute for Innovative Materials - Papers
Presently, lithium-ion batteries (LIBs) are the most promising commercialized electrochemical energy storage systems. Unfortunately, the limited resource of Li results in increasing cost for its scalable application and a general consciousness of the need to find new type of energy storage technologies. Very recently, substantial effort has been invested to sodium-ion batteries (SIBs) due to their effectively unlimited nature of sodium resources. Furthermore, the potential of Li/Li+ is 0.3 V lower than that of Na/Na+, which makes it more effective to limit the electrolyte degradation on the outer surface of the electrode.[1] Nevertheless, one major obstacle for the commercial application …
Metal-Oxygen Bonds: Stabilizing The Intermediate Species Towards Practical Li-Air Batteries, Yuyang Hou, Yuqing Liu, Zhen Zhou, Lili Liu, Haipeng Guo, Hua-Kun Liu, Jiazhao Wang, Jun Chen
Metal-Oxygen Bonds: Stabilizing The Intermediate Species Towards Practical Li-Air Batteries, Yuyang Hou, Yuqing Liu, Zhen Zhou, Lili Liu, Haipeng Guo, Hua-Kun Liu, Jiazhao Wang, Jun Chen
Australian Institute for Innovative Materials - Papers
Rechargeable nonaqueous Li-air batteries are attracting much attention due to their far higher theoretical energy density than lithium-ion batteries. However, Li-air batteries suffers from poor round-trip efficiency, low rate capability and poor cycle life. To reduce charge overpotentials by understanding reaction mechanism and to operate in ambient air instead of pure oxygen are prerequisites to realization of practical Li-air batteries. Here, we demonstrate a practical Li-air battery using Mo 2 C/CNT as a potential promoter with high round-trip efficiency (∼80%) and improved cycling performance (40 cycles) because Mo 2 C stabilizes the intermediate species from reduction of both O 2 …
Raman Studies On Silicene And Germanene, Yani Liu, Jincheng Zhuang, Weichang Hao, Yi Du
Raman Studies On Silicene And Germanene, Yani Liu, Jincheng Zhuang, Weichang Hao, Yi Du
Australian Institute for Innovative Materials - Papers
Two-dimensional (2D) group IV elemental materials are expected to have similar electronic features to their lightest analogue, graphene. The favorable hybridization state of heavier group IV elements is the sp 3 state, leading to buckled structures instead of a planar one. These buckled structures could modulate the vibrational properties of these 2D materials by introducing a strain effect. In this review, the authors focus on the recent research on the Raman spectra of silicene and Germanene from both the theoretical and experimental sides. The abundant superstructures of silicene and Germanene are formed due to the different interaction strengths between silicene/germanene …
Superhydrophobic Shape Memory Polymer Arrays With Switchable Isotropic/Anisotropic Wetting, Zhongjun Cheng, Dongjie Zhang, Tong Lv, Hua Lai, Enshuang Zhang, Hongjun Kang, Yongzhen Wang, Pengchang Liu, Yuyan Liu, Yi Du, Shi Xue Dou, Lei Jiang
Superhydrophobic Shape Memory Polymer Arrays With Switchable Isotropic/Anisotropic Wetting, Zhongjun Cheng, Dongjie Zhang, Tong Lv, Hua Lai, Enshuang Zhang, Hongjun Kang, Yongzhen Wang, Pengchang Liu, Yuyan Liu, Yi Du, Shi Xue Dou, Lei Jiang
Australian Institute for Innovative Materials - Papers
Smart surfaces with tunable wettability have aroused much attention in the past few years. However, to obtain a surface that can reversibly transit between the lotus-leaf-like superhydrophobic isotropic and rice-leaf-like superhydrophobic anisotropic wettings is still a challenge. This paper, by mimicking microstructures on both lotus and rice leaves, reports such a surface that is prepared by creating micro/nanostructured arrays on the shape memory polymer. On the surface, the microstructure shapes can be reversibly changed between the lotus-leaf-like random state and the rice-leaf-like 1D ordered state. Accordingly, repeated switch between the superhydrophobic isotropic and anisotropic wettings can be displayed. Research results …
Charging Ahead: How Australia Is Innovating In Battery Technology, Jonathan Knott
Charging Ahead: How Australia Is Innovating In Battery Technology, Jonathan Knott
Australian Institute for Innovative Materials - Papers
Lithium-ion remains the most widespread battery technology in use today, thanks to the fact that products that use it are both portable and rechargeable. It powers everything from your smartphone to the "world's biggest battery" in South Australia. Demand for batteries is expected to accelerate in coming decades with the increase in deployment of electric vehicles and the need to store energy generated from renewable sources, such as solar photovoltaic panels. But rising concerns about mining practices and shortages in raw materials for lithium-ion batteries - as well as safety issues - have led to a search for alternative technologies.
Alkaline Fuel Cells With Novel Gortex-Based Electrodes Are Powered Remarkably Efficiently By Methane Containing 5% Hydrogen, Klaudia K. Wagner, Prerna Tiwari, Gerhard F. Swiegers, Gordon G. Wallace
Alkaline Fuel Cells With Novel Gortex-Based Electrodes Are Powered Remarkably Efficiently By Methane Containing 5% Hydrogen, Klaudia K. Wagner, Prerna Tiwari, Gerhard F. Swiegers, Gordon G. Wallace
Australian Institute for Innovative Materials - Papers
Numerous electric and gas utilities are actively pursuing "power-to-gas" technology, which involves using unwanted, excess renewable energy to manufacture hydrogen gas (H 2 ) that is then injected into the existing natural gas pipeline network in 5-10% by volume. This work reports an alkaline fuel cell that has the potential to harness such gas mixtures for downstream generation of electric power. The fuel cell, which employs novel Gortex-based electrodes layered with Pd/Pt catalysts, generates electricity remarkably efficiently when fuelled with methane (CH 4 ) containing 5% hydrogen. Methane constitutes the major component of natural gas. The fuel cell has been …
Hybrid Nanoarchitecturing Of Hierarchical Zinc Oxide Wool-Ball-Like Nanostructures With Multi-Walled Carbon Nanotubes For Achieving Sensitive And Selective Detection Of Sulfur Dioxide, Ni Luh Wulan Septiani, Yusuf Valentino Kaneti, Brian Yuliarto, Nugraha Nugraha, Hermawan Dipojono, Toshiaki Takei, Jungmok You, Yusuke Yamauchi
Hybrid Nanoarchitecturing Of Hierarchical Zinc Oxide Wool-Ball-Like Nanostructures With Multi-Walled Carbon Nanotubes For Achieving Sensitive And Selective Detection Of Sulfur Dioxide, Ni Luh Wulan Septiani, Yusuf Valentino Kaneti, Brian Yuliarto, Nugraha Nugraha, Hermawan Dipojono, Toshiaki Takei, Jungmok You, Yusuke Yamauchi
Australian Institute for Innovative Materials - Papers
This work reports a facile glycerol-assisted solvothermal method for synthesizing hierarchical three-dimensional (3D) wool-ball-like zinc oxide (ZnO) nanostructures and their subsequent modifications with multi-walled carbon nanotubes (MWCNTs) as modifiers for achieving sensitive and selective detection of toxic sulfur dioxide (SO2) gas. Structurally, the as-synthesized 3D wool-ball-like ZnO is assembled of two-dimensional (2D) plate-like structures, which themselves are arranged by numerous small nanoparticles. Furthermore, in this work we observed an interesting new phenomenon in which when a high concentration of MWCNTs is introduced, many small nanorods grew on the surface of the plate-like structures which assemble the 3D wool-ball-like ZnO nanostructures. …
An Electrosynthesized 3d Porous Molybdenum Sulfide/Graphene Film With Enhanced Electrochemical Performance For Lithium Storage, Yu Ge, Caiyun Wang, Yong Zhao, Yong Liu, Yunfeng Chao, Tian Zheng, Gordon G. Wallace
An Electrosynthesized 3d Porous Molybdenum Sulfide/Graphene Film With Enhanced Electrochemical Performance For Lithium Storage, Yu Ge, Caiyun Wang, Yong Zhao, Yong Liu, Yunfeng Chao, Tian Zheng, Gordon G. Wallace
Australian Institute for Innovative Materials - Papers
Molybdenum sulfide/graphene composites are promising anode materials for lithium-ion batteries (LIBs). In this work, MoS x /graphene composite film with an ideal 3D porous structure is developed via a facile and straightforward electrochemical route. The MoS x nanoparticles are uniformly anchored on the graphene nanosheets that are randomly arranged, resulting in MoS x /graphene composites with well-developed porous structure. Benefiting from such structure and the synergistic effect from two components, this material shows a high specific capacity over 1200 mA h g −1 , an excellent rate performance, and superior cycling stability. The dominating pseudocapacitive behavior in Li storage contributes …
Two-Dimensional Nanostructures For Sodium-Ion Battery Anodes, Jianfeng Mao, Tengfei Zhou, Yang Zheng, Hong Gao, Hua-Kun Liu, Zaiping Guo
Two-Dimensional Nanostructures For Sodium-Ion Battery Anodes, Jianfeng Mao, Tengfei Zhou, Yang Zheng, Hong Gao, Hua-Kun Liu, Zaiping Guo
Australian Institute for Innovative Materials - Papers
Sodium-ion batteries (SIBs) have attracted great attention recently due to the abundance of sodium resources, particularly for large-scale electric energy storage applications for renewable energy and smart grids. More and more nanostructured anode materials have been developed with the aims of high energy density, high cycling stability, and excellent rate capability, in which two-dimensional (2D) nanostructures are showing promise due to their shortened paths for sodium ion transportation and larger surface areas for sodium ion absorption. Moreover, 2D materials (e.g. graphene) have been proved to be excellent supporting and conducting agents in SIB anodes due to their high electrical conductivity …
Engineering Of Lithium-Metal Anodes Towards A Safe And Stable Battery, Lei Wang, Ziyue Zhou, Xiao Yan, Feng Hou, Lei Wen, Wenbin Luo, Ji Liang, Shi Xue Dou
Engineering Of Lithium-Metal Anodes Towards A Safe And Stable Battery, Lei Wang, Ziyue Zhou, Xiao Yan, Feng Hou, Lei Wen, Wenbin Luo, Ji Liang, Shi Xue Dou
Australian Institute for Innovative Materials - Papers
Currently, the state-of-the-art lithium-ion batteries (LIBs) are the most widely used energy storage devices and have brought a great impact on our daily life. However, even many strategies have been reported to improve the energy density, these LIBs still can not meet the rapidly growing demand from the many lately emerged devices. During the pursue of higher energy densities, lithium-metal batteries (LMBs) have been the most promising candidates of the next-generation energy storage devices. Unfortunately, the Li-metal anode usually induces severe safety concerns and inferior cycle performance, because of the dendrite growth, high reactivity, and infinite volume changes of Li …
Gradient Chemical Order In The Relaxor Pb(Mg1/3nb2/3)O3, Matthew Cabral, Shujun Zhang, Elizabeth Dickey, James Lebeau
Gradient Chemical Order In The Relaxor Pb(Mg1/3nb2/3)O3, Matthew Cabral, Shujun Zhang, Elizabeth Dickey, James Lebeau
Australian Institute for Innovative Materials - Papers
Here, we apply aberration-corrected scanning transmission electron microscopy to quantify chemical ordering in the relaxor Pb(Mg 1/3 Nb 2/3 )O 3 (PMN). We find that contrary to the prevailing model of a binary distribution of chemically ordered regions within a disordered matrix, the degree of ordering smoothly varies within an ordered domain and approaches a minimum at anti-phase boundaries. These results provide direct insight into the nature of cation ordering in this important prototypical relaxor material.
The Serine Protease Htra1 Contributes To The Formation Of An Extracellular 25-Kda Apolipoprotein E Fragment That Stimulates Neuritogenesis, Sonia Sanz Munoz, Hongyun Li, Kalani R. Ruberu, Qian Chu, Alan Saghatelian, Lezanne Ooi, Brett Garner
The Serine Protease Htra1 Contributes To The Formation Of An Extracellular 25-Kda Apolipoprotein E Fragment That Stimulates Neuritogenesis, Sonia Sanz Munoz, Hongyun Li, Kalani R. Ruberu, Qian Chu, Alan Saghatelian, Lezanne Ooi, Brett Garner
Australian Institute for Innovative Materials - Papers
Apolipoprotein-E (apoE) is a glycoprotein highly expressed in the brain, where it appears to play a role in lipid transport, β-amyloid clearance, and neuronal signaling. ApoE proteolytic fragments are also present in the brain, but the enzymes responsible for apoE fragmentation are unknown, and the biological activity of specific apoE fragments remains to be determined. Here we utilized SK-N-SH neuroblastoma cells differentiated into neurons with all-trans-retinoic acid (ATRA) to study extracellular apoE proteolysis. ApoE fragments were detectable in culture supernatants after 3 days, and their levels were increased for up to 9 days in the presence of ATRA. The concentration …
A New Approach To The Inverse Problem For Current Mapping In Thin-Film Superconductors, Jack Zuber, Frederick Wells, Sergey Fedoseev, Tom H. Johansen, Anatoly B. Rosenfeld, Alexey V. Pan
A New Approach To The Inverse Problem For Current Mapping In Thin-Film Superconductors, Jack Zuber, Frederick Wells, Sergey Fedoseev, Tom H. Johansen, Anatoly B. Rosenfeld, Alexey V. Pan
Australian Institute for Innovative Materials - Papers
A novel mathematical approach has been developed to complete the inversion of the Biot-Savart law in one- and two-dimensional cases from measurements of the perpendicular component of the magnetic field using the well-developed Magneto-Optical Imaging technique. Our approach, especially in the 2D case, is provided in great detail to allow a straightforward implementation as opposed to those found in the literature. Our new approach also refines our previous results for the 1D case [Johansen et al., Phys. Rev. B 54, 16264 (1996)], and streamlines the method developed by Jooss et al. [Physica C 299, 215 (1998)] deemed as the most …
Graphene-Tailored Thermodynamics And Kinetics To Fabricate Metal Borohydride Nanoparticles With High Purity And Enhanced Reversibility, Hongyu Zhang, Guanglin Xia, Jian Zhang, Dalin Sun, Zaiping Guo, Xuebin Yu
Graphene-Tailored Thermodynamics And Kinetics To Fabricate Metal Borohydride Nanoparticles With High Purity And Enhanced Reversibility, Hongyu Zhang, Guanglin Xia, Jian Zhang, Dalin Sun, Zaiping Guo, Xuebin Yu
Australian Institute for Innovative Materials - Papers
Due to their ultrahigh theoretical capacity, metal borohydrides are considered to be one of the most promising candidate hydrogen storage materials. Their application still suffers, however, from high operating temperature, sluggish kinetics, and poor reversibility. Designing nanostructures is an effective way of addressing these issues, but seeking suitable approaches remains a big challenge. Here, a space-confined solid-gas reaction to synthesize Mg(BH 4 ) 2 nanoparticles supported on grapheme is reported, which serves as the structural support for the dispersed Mg(BH 4 ) 2 nanoparticles. More notably, density functional theory calculations reveal that graphene could weaken both the MgH bonds of …
Lanthanide Doping Induced Electrochemical Enhancement Of Na2ti3o7 Anodes For Sodium-Ion Batteries, Jiale Xia, Hongyang Zhao, Wei Kong Pang, Zongyou Yin, Bo Zhou, Gang He, Zaiping Guo, Yaping Du
Lanthanide Doping Induced Electrochemical Enhancement Of Na2ti3o7 Anodes For Sodium-Ion Batteries, Jiale Xia, Hongyang Zhao, Wei Kong Pang, Zongyou Yin, Bo Zhou, Gang He, Zaiping Guo, Yaping Du
Australian Institute for Innovative Materials - Papers
Na2Ti3O7 is considered as a promising anode material for sodium ion batteries (SIBs) due to its excellent high-rate performance compared with hard carbons. However, the electrochemical performance of Na2Ti3O7 is heavily limited by its low electrical conductivity. In this study, we synthesized a series of lanthanide (Ln = La, Ce, Nd, Sm, Gd, Er, and Yb) doped microsized Na2Ti3O7 anode materials and systematically studied the electrochemical performance. Compared with pristine Na2Ti3O7, all the doped samples show superior electrochemical performance. Especially, the Yb3+ doped sample not only delivers a high reversible capacity of 89.4 mA h g−1 at 30C, but also …
One Dimensional Hierarchical Nanostructures Composed Of Cds Nanosheets/Nanoparticles And Ag Nanowires With Promoted Photocatalytic Performance, Jinyan Xiong, Xulei Du, Gang Cheng, Huagui Yang, Jun Chen, Shi Xue Dou, Zhen Li
One Dimensional Hierarchical Nanostructures Composed Of Cds Nanosheets/Nanoparticles And Ag Nanowires With Promoted Photocatalytic Performance, Jinyan Xiong, Xulei Du, Gang Cheng, Huagui Yang, Jun Chen, Shi Xue Dou, Zhen Li
Australian Institute for Innovative Materials - Papers
Constructing one-dimensional (1D) hierarchical photocatalysts is deemed to be central to promoting photocatalytic capacity. In this paper, 1D hierarchical structures composed of CdS nanosheets/nanoparticles on Ag nanowires (denoted as 1D Ag@CdS core-shell hierarchical hetero-nanowires) have been fabricated via a wet-chemistry approach at low temperature. The optimization of the synthetic parameters indicates that the amounts of Cd(NO 3 ) 2 ·4H 2 O and thiourea play important roles in the construction of the 1D hierarchical structures. The as-prepared 1D hierarchical Ag@CdS core-shell hetero-nanowires exhibit efficient photocatalytic performance in both methyl orange (MO) degradation (degrade 96% of MO within 240 min) and …
Solid-State Poly(Ionic Liquid) Gels For Simultaneous Co2 Adsorption And Electrochemical Reduction, Tania Benedetti Goncales, Sina Naficy, Ashley Walker, David L. Officer, Gordon G. Wallace, Fariba Dehghani
Solid-State Poly(Ionic Liquid) Gels For Simultaneous Co2 Adsorption And Electrochemical Reduction, Tania Benedetti Goncales, Sina Naficy, Ashley Walker, David L. Officer, Gordon G. Wallace, Fariba Dehghani
Australian Institute for Innovative Materials - Papers
Managing carbon dioxide (CO2) released from large-scale industrial processes is of great importance, yet there remain significant technical challenges. Herein, the fabrication of 1- mm-thick solid-state electrochemical devices based on poly- (ionic liquid) ionogels with embedded electrodes capable of both adsorption and electrochemical reduction of CO2 is reported. The ionogels are prepared via radical polymerization and chemical crosslinking of a vinyl imidazolium trifluoromethanesulfonimide ionic liquid monomer in the presence of additional ionic liquids (ILs) that act as swelling agents and enhance ionic conductivity. The effects of the ILs concentration and the degree of crosslinking on the mechanical properties, conductivity, and …
Microscopic Origin Of Highly Enhanced Supercurrent In 122 Pnictide Superconductor, Jincheng Zhuang, Wai Kong Yeoh, H W. Yen, Xun Xu, Yi Du, H Liu, Chao Yao, Yanwei Ma, Xiaolin Wang, Simon Peter Ringer, Shi Xue Dou
Microscopic Origin Of Highly Enhanced Supercurrent In 122 Pnictide Superconductor, Jincheng Zhuang, Wai Kong Yeoh, H W. Yen, Xun Xu, Yi Du, H Liu, Chao Yao, Yanwei Ma, Xiaolin Wang, Simon Peter Ringer, Shi Xue Dou
Australian Institute for Innovative Materials - Papers
By a combination of microstructure analysis techniques, we reveal the structural origin of the extremely high supercurrent (up to the practical level of 0.1 MA/cm 2 at 10 T, 4.2 K) in Sr 0.6 K 0.4 Fe 2 As 2 (122) tape. Transmission Kikuchi diffraction analysis reveals that hot pressing promotes a very high fraction of low-angle grain boundaries and texturing of the crystals, which is beneficial for the intergrain physical properties. Moreover, the unique characteristics of low-angle grain boundaries favor both long-range dislocations and short-range dislocations that totally change the pinning mechanism of the bulk 122 system. These defects …