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Articles 451 - 480 of 1524
Full-Text Articles in Physical Sciences and Mathematics
Effect Of Mo, Nb And V On Hot Deformation Behaviour, Microstructure And Hardness Of Microalloyed Steels, Navjeet Singh, Andrii Kostryzhev, Chris R. Killmore, Elena V. Pereloma
Effect Of Mo, Nb And V On Hot Deformation Behaviour, Microstructure And Hardness Of Microalloyed Steels, Navjeet Singh, Andrii Kostryzhev, Chris R. Killmore, Elena V. Pereloma
Australian Institute for Innovative Materials - Papers
Three novel low carbon microalloyed steels with various additions of Mo, Nb and V were investigated after thermomechanical processing simulations designed to obtain ferrite-bainite microstructure. With the increase in microalloying element additions from the High V-to NbV-to MoNbV-microalloyed steel, the high temperature flow stresses increased. The MoNbV and NbV steels have shown a slightly higher non-recrystallization temperature (1000°C) than the High V steel (975°C) due to the solute drag from Nb and Mo atoms and austenite precipitation of Nb-rich particles. The ambient temperature microstructures of all steels consisted predominantly of polygonal ferrite with a small amount of granular bainite. Precipitation …
Active-Site-Enriched Iron-Doped Nickel/Cobalt Hydroxide Nanosheets For Enhanced Oxygen Evolution Reaction, Qian Zhou, Yaping Chen, Guoqiang Zhao, Yue Lin, Zhenwei Yu, Xun Xu, Xiaolin Wang, Hua-Kun Liu, Wenping Sun, Shi Xue Dou
Active-Site-Enriched Iron-Doped Nickel/Cobalt Hydroxide Nanosheets For Enhanced Oxygen Evolution Reaction, Qian Zhou, Yaping Chen, Guoqiang Zhao, Yue Lin, Zhenwei Yu, Xun Xu, Xiaolin Wang, Hua-Kun Liu, Wenping Sun, Shi Xue Dou
Australian Institute for Innovative Materials - Papers
Highly active, durable, and inexpensive nanostructured catalysts are crucial for achieving efficient and economical electrochemical water splitting. However, developing efficient approaches to further improve the catalytic ability of the well-defined nanostructured catalysts is still a big challenge. Herein, we report a facile and universal cation-exchange process for synthesizing Fe-doped Ni(OH)2 and Co(OH)2 nanosheets with enriched active sites toward enhanced oxygen evolution reaction (OER). In comparison with typical NiFe layered double hydroxide (LDH) nanosteets prepared by the conventional one-pot method, Fe-doped Ni(OH)2 nanosheets evolving from Ni(OH)2 via an Fe3+/Ni2+ cation-exchange process possess nanoporous surfaces with abundant defects. Accordingly, Fe-doped Ni(OH)2 nanosheets …
Charge Injection From Chronoamperometry Of Platinum Electrodes For Bionic Devices, Alexander R. Harris, Carrie Newbold, Paul Carter, Robert Cowan, Gordon G. Wallace
Charge Injection From Chronoamperometry Of Platinum Electrodes For Bionic Devices, Alexander R. Harris, Carrie Newbold, Paul Carter, Robert Cowan, Gordon G. Wallace
Australian Institute for Innovative Materials - Papers
The chronoamperometric response of platinum under biologically relevant conditions was investigated to understand how charge transfer across the electrode-tissue interface occurs during potential pulsing. Platinum behaves as a non-ideal electrode, passing capacitance and faradaic charge. The faradaic reactions are associated with oxide formation and removal, hydrogen and anion adsorption. The capacitance charge decayed within μs while the faradaic charge decay occurred over longer times. The total charge and the ratio of faradaic to capacitance charge was seen to vary with time, potential, electrode size, oxygen concentration, electrolyte and surface cleaning method. The charge transfer mechanisms result in an accumulation of …
Dependence Of The Optical Conductivity On The Uniaxial And Biaxial Strains In Black Phosphorene, C H. Yang, J Y. Zhang, Guoxiu Wang, C Zhang
Dependence Of The Optical Conductivity On The Uniaxial And Biaxial Strains In Black Phosphorene, C H. Yang, J Y. Zhang, Guoxiu Wang, C Zhang
Australian Institute for Innovative Materials - Papers
By using the Kubo formula, the optical conductivity of strained black phosphorene was studied. The anisotropic band dispersion gives rise to an orientation dependent optical conductivity. The energy gap can be tuned by the uniaxial and biaxial strains which can be observed from the interband optical conductivity polarized along the armchair (x) direction. The preferential conducting direction is along the x direction. The dependence of the intraband optical conductivity along the zigzag (y) direction on the Fermi energy and strain exhibits increasing or decreasing monotonously. However, along the x direction this dependence is complicated which originates from the carriers' inverse-direction …
Porous Nati2(Po4)(3) Nanocubes Anchored On Porous Carbon Nanosheets For High Performance Sodium-Ion Batteries, Ziqi Wang, Jiaojiao Liang, Kai Fan, Xiaodi Liu, Caiyun Wang, Jianmin Ma
Porous Nati2(Po4)(3) Nanocubes Anchored On Porous Carbon Nanosheets For High Performance Sodium-Ion Batteries, Ziqi Wang, Jiaojiao Liang, Kai Fan, Xiaodi Liu, Caiyun Wang, Jianmin Ma
Australian Institute for Innovative Materials - Papers
NaTi2(PO4)3 has attracted great interest as anode material for sodium ion batteries owing to its open three-dimensional framework structure and limited volume changes during the charge and discharge process. However, the poor intrinsic electronic conductivity of NaTi2(PO4)3 needs to be improved for high rate capability. In this work, porous NaTi2(PO4)3 nanocubes anchored on porous carbon nanosheets (NaTi2(PO4)3/C) are designed and developed. This material exhibits a large discharge capacity and good rate capacity including a first discharge capacity of 485 mAh g−1 at a current density of 0.1 A g−1, and 98 mAh g−1 retained at a high rate of 4 …
Gold-Loaded Nanoporous Ferric Oxide Nanocubes For Electrocatalytic Detection Of Microrna At Attomolar Level, Md Nazmul Islam, Mostafa Kamal Masud, Nam-Trung Nguyen, Vinod Gopalan, Hatem Alamri, Zeid Abdullah Alothman, Md. Shahriar Al Hossain, Yusuke Yamauchi, Alfred K. Lam, Muhammad J. A Shiddiky
Gold-Loaded Nanoporous Ferric Oxide Nanocubes For Electrocatalytic Detection Of Microrna At Attomolar Level, Md Nazmul Islam, Mostafa Kamal Masud, Nam-Trung Nguyen, Vinod Gopalan, Hatem Alamri, Zeid Abdullah Alothman, Md. Shahriar Al Hossain, Yusuke Yamauchi, Alfred K. Lam, Muhammad J. A Shiddiky
Australian Institute for Innovative Materials - Papers
A crucial issue in microRNA (miRNA) detection is the lack of sensitive method capable of detecting the low levels of miRNA in RNA samples. Herein, we present a sensitive and specific method for the electrocatalytic detection of miR-107 using gold-loaded nanoporous superparamagnetic iron oxide nanocubes (Au-NPFe 2 O 3 NC). The target miRNA was directly adsorbed onto the gold surfaces of Au-NPFe 2 O 3 NC via gold-RNA affinity interaction. The electrocatalytic activity of Au-NPFe 2 O 3 NC was then used for the reduction of ruthenium hexaammine(III) chloride (RuHex, [Ru(NH 3 ) 6 ] 3+ ) bound with target …
3d Printing Vegemite And Marmite: Redefining "Breadboards", Charles Hamilton, Gursel Alici, Marc In Het Panhuis
3d Printing Vegemite And Marmite: Redefining "Breadboards", Charles Hamilton, Gursel Alici, Marc In Het Panhuis
Australian Institute for Innovative Materials - Papers
The ability to use Food Layered Manufacturing (FLM) to fabricate attractive food presentations and incorporate additives that can alter texture, nutrition, color, and flavor have made it widely investigated for combatting various issues in the food industry. For a food item to be FLM compatible, it must possess suitable rheological properties to allow for its extrusion and to keep its 3D printed structure. Here, we present a rheological analysis of two commercially available breakfast spreads, Vegemite and Marmite, and show their compatibility with FLM in producing 3D structures onto bread substrates. Furthermore, we demonstrated that these materials can be used …
Recent Progress In 2d Materials For Flexible Supercapacitors, Yan Han, Yu Ge, Yunfeng Chao, Caiyun Wang, Gordon G. Wallace
Recent Progress In 2d Materials For Flexible Supercapacitors, Yan Han, Yu Ge, Yunfeng Chao, Caiyun Wang, Gordon G. Wallace
Australian Institute for Innovative Materials - Papers
High performance supercapacitors coupled with mechanical flexibility are needed to drive flexible and wearable electronics that have anesthetic appeal and multi-functionality. Two dimensional (2D) materials have attracted attention owing to their unique physicochemical and electrochemical properties, in addition to their ability to form hetero-structures with other nanomaterials further improving mechanical and electrochemical properties. After a brief introduction of supercapacitors and 2D materials, recent progress on flexible supercapacitors using 2D materials is reviewed. Here we provide insights into the structure-property relationships of flexible electrodes, in particular free-standing films. We also present our perspectives on the development of flexible supercapacitors.
Electrochemical And Electrostatic Cleavage Of Alkoxyamines, Long Zhang, Eduardo Laborda, Nadim A. Darwish, Benjamin B. Noble, Jason Tyrell, Sandra Pluczyk, Anton P. Le Brun, Gordon G. Wallace, Joaquin Gonzalez, M Coote, Simone Ciampi
Electrochemical And Electrostatic Cleavage Of Alkoxyamines, Long Zhang, Eduardo Laborda, Nadim A. Darwish, Benjamin B. Noble, Jason Tyrell, Sandra Pluczyk, Anton P. Le Brun, Gordon G. Wallace, Joaquin Gonzalez, M Coote, Simone Ciampi
Australian Institute for Innovative Materials - Papers
Alkoxyamines are heat-labile molecules, widely used as an in situ source of nitroxides in polymer and materials sciences. Here we show that the one-electron oxidation of an alkoxyamine leads to a cation radical intermediate that even at room temperature rapidly fragments, releasing a nitroxide and carbocation. Digital simulations of experimental voltammetry and current-time transients suggest that the unimolecular decomposition which yields the "unmasked" nitroxide (TEMPO) is exceedingly rapid and irreversible. High-level quantum computations indicate that the collapse of the alkoxyamine cation radical is likely to yield a neutral nitroxide radical and a secondary phenylethyl cation. However, this fragmentation is predicted …
Control Of Superconductivity By Means Of Electric-Field-Induced Strain In Superconductor/Piezoelectric Hybrids, D Stamopoulos, M Zeibekis, Shujun Zhang
Control Of Superconductivity By Means Of Electric-Field-Induced Strain In Superconductor/Piezoelectric Hybrids, D Stamopoulos, M Zeibekis, Shujun Zhang
Australian Institute for Innovative Materials - Papers
The controlled modification of superconductivity by any means, specifically in hybrid systems, has attracted much interest in the recent decades. Here, we present experimental data and phenomenological modeling on the control of T C of superconducting (SC) Nb thin films, with thickness 3 nm ≤ dNb≤50 nm, under the application of in-plane strain, S(E ex ) induced by an external out-of-plane electric field, E ex to piezoelectric (PE) single crystals, namely, (1-x)Pb(Mg 1/3 Nb 2/3 )O 3 -xPbTiO 3 (PMN-xPT), with x = 0.27 and 0.31. We report experimental modification of T C of Nb by E ex , accurately …
Origin Of Magnetic Flux-Jumps In Nb Films Subject To Mechanical Vibrations And Corresponding Magnetic Perturbations, Igor A. Golovchanskiy, Alexey V. Pan, Tom H. Johansen, Jonathan George, Igor Rudnev, Anatoly B. Rosenfeld, Sergey Fedoseev
Origin Of Magnetic Flux-Jumps In Nb Films Subject To Mechanical Vibrations And Corresponding Magnetic Perturbations, Igor A. Golovchanskiy, Alexey V. Pan, Tom H. Johansen, Jonathan George, Igor Rudnev, Anatoly B. Rosenfeld, Sergey Fedoseev
Australian Institute for Innovative Materials - Papers
In this paper the origin of flux-jumps in Nb thin films is established during magnetization measurements using a vibrating sample magnetometer (VSM). Magnetization measurements of the flux avalanche activity show its strong dependence on frequency and amplitude of VSM vibration. In particular, under certain conditions the vibrations induce a transition from a stable superconducting critical state to an undercritical state, accompanied by the 20-fold drop in the magnetic moment. These features allow the elucidation of the origin of the flux-jumps. In contrast to the commonly assumed thermomagnetic instabilities to be responsible for the flux-jumps in Nb films, our results provide …
Enhanced Thermoelectric Performance Through Synergy Of Resonance Levels And Valence Band Convergence Via Q/In (Q = Mg, Ag, Bi) Co-Doping, Lijuan Zhang, Peng Qin, Chao Han, Jian Li Wang, Zhenhua Ge, Qiao Sun, Zhenxiang Cheng, Zhen Li, Shi Xue Dou
Enhanced Thermoelectric Performance Through Synergy Of Resonance Levels And Valence Band Convergence Via Q/In (Q = Mg, Ag, Bi) Co-Doping, Lijuan Zhang, Peng Qin, Chao Han, Jian Li Wang, Zhenhua Ge, Qiao Sun, Zhenxiang Cheng, Zhen Li, Shi Xue Dou
Australian Institute for Innovative Materials - Papers
The temperature-dependent evolution of heavy-hole valence band contribution to the Seebeck coefficients of SnTe-based thermoelectric materials is revealed in situ by neutron and synchrotron powder diffraction. The additional carriers with high effective mass are created in a heavy-hole valence band above 493 K, which contribute to the electrical transport, and lead to a significant enhancement of the Seebeck coefficient at high temperature. In addition, remarkably improved electrical transport properties are achieved through the synergetic effects of the resonance levels, the valence band convergence, and the carrier concentration optimization by co-doping with Mg & In, Ag & In and Bi & …
Super-Compatible Functional Boron Nitride Nanosheets/Polymer Films With Excellent Mechanical Properties And Ultra-High Thermal Conductivity For Thermal Management, Jiemin Wang, Yuanpeng Wu, Ye Xue, Dan Liu, Xuebin Wang, Xiao Hu, Yoshio Bando, Weiwei Lei
Super-Compatible Functional Boron Nitride Nanosheets/Polymer Films With Excellent Mechanical Properties And Ultra-High Thermal Conductivity For Thermal Management, Jiemin Wang, Yuanpeng Wu, Ye Xue, Dan Liu, Xuebin Wang, Xiao Hu, Yoshio Bando, Weiwei Lei
Australian Institute for Innovative Materials - Papers
High heat-dissipation polymers are currently in great demand especially with the rapid development of electronic devices. However, traditional polymer composites usually suffer from both low thermal conductivity due to poor dispersibility and low concentration of fillers in the polymer matrix. To address this issue, it is necessary to improve the compatibility between the thermal conductive fillers and polymer matrix. Here, we designed a highly water-soluble functionalized boron nitride (FBN) nanosheet. Unlike most functional BN nanosheets that are only dispersible in water with polymer matrix at low concentrations, our FBN nanosheets can be mutually dispersed with aqueous polymers such as polyvinyl …
Porous Zr2sc-Carbon Composite Microspheres: Possible Radiation Tolerant Sorbents And Transmutation Hosts For Technetium-99, Nicholas Scales, Jun Chen, Robert Aughterson, Inna Karatchevtseva, Attila Stopic, Gregory R. Lumpkin, Vittorio Luca
Porous Zr2sc-Carbon Composite Microspheres: Possible Radiation Tolerant Sorbents And Transmutation Hosts For Technetium-99, Nicholas Scales, Jun Chen, Robert Aughterson, Inna Karatchevtseva, Attila Stopic, Gregory R. Lumpkin, Vittorio Luca
Australian Institute for Innovative Materials - Papers
The preparation, characteristics and adsorption properties of novel porous carbon-ceramic composite microspheres are presented. The composites were synthesised by a simple ion exchange process involving the cationic Zr tetramer and commonly-available macroporous sulphonated polystyrene-divinylbenzene cation exchange resins, with subsequent carbothermal reduction at 1350 °C. The materials were extensively characterised with respect to composition, chemical structure and porosity. Carbothermal reduction of the Zr-loaded templates resulted in formation of crystallites of the MAX phase zirconium sulphide carbide (Zr 2 SC) embedded within a highly microporous carbon framework with a macroporous secondary structure inherited from the resin template. Despite the high BET surface …
Electrochemical Behavior Of Li+, Na+ And K+ Ion Electrolyte In Na0.33v2o5 Symmetric Pseudocapacitor With High-Performance And Extremely High Cyclic Stability, Ramu Manikandan, C Justin Raj, Murugesan Rajesh, Byung Chul Kim, Ju Yong Sim, Kook Hyun Yu
Electrochemical Behavior Of Li+, Na+ And K+ Ion Electrolyte In Na0.33v2o5 Symmetric Pseudocapacitor With High-Performance And Extremely High Cyclic Stability, Ramu Manikandan, C Justin Raj, Murugesan Rajesh, Byung Chul Kim, Ju Yong Sim, Kook Hyun Yu
Australian Institute for Innovative Materials - Papers
A high performance symmetric supercapacitor was fabricated using Na0.33V2O5 nanocomposite synthesized via a simple co-precipitation technique. The structural and morphological investigation showed that the synthesized Na0.33V2O5 nanocomposite exhibited a monoclinic structure with nanorod like morphology. The electrochemical properties of the Na0.33V2O5 symmetric supercapacitor was studied utilizing three different aqueous electrolytes such as 1M of LiCl, NaCl and KCl respectively. Interestingly, the fabricated Na0.33V2O5 symmetric supercapacitors exhibited excellent electrochemical capacitance behavior in all the electrolytes with a maximum specific capacitance value of 168 F g-1 in 1M LiCl, 146 F g-1 in 1M NaCl and 132 F g-1 in 1M KCl …
Superelastic Hybrid Cnt/Graphene Fibers For Wearable Energy Storage, Zan Lu, Javad Foroughi, Caiyun Wang, Hairu Long, Gordon G. Wallace
Superelastic Hybrid Cnt/Graphene Fibers For Wearable Energy Storage, Zan Lu, Javad Foroughi, Caiyun Wang, Hairu Long, Gordon G. Wallace
Australian Institute for Innovative Materials - Papers
The demands for wearable technologies continue to grow and novel approaches for powering these devices are being enabled by the advent of new electromaterials and novel fabrication strategies. Herein, a novel approach is reported to develop superelastic wet-spun hybrid carbon nanotube graphene fibers followed by electrodeposition of polyaniline to achieve a high-performance fiber-based supercapacitor. It is found that the specific capacitance of hybrid carbon nanotube (CNT)/graphene fiber is enhanced up to ≈39% using a graphene to CNT fiber ratio of 1:3. Fabrication of spring-like coiled fiber coated with an elastic polymer shows an extraordinary elasticity capable of 800% strain while …
Readily Exfoliated Tise2 Nanosheets For High-Performance Sodium Storage, Dan Zhang, Guoqiang Zhao, Peng Li, Yu Zhang, Wenbin Qiu, Jie Shu, Yinzhu Jiang, Shi Xue Dou, Wenping Sun
Readily Exfoliated Tise2 Nanosheets For High-Performance Sodium Storage, Dan Zhang, Guoqiang Zhao, Peng Li, Yu Zhang, Wenbin Qiu, Jie Shu, Yinzhu Jiang, Shi Xue Dou, Wenping Sun
Australian Institute for Innovative Materials - Papers
Materials with sheet-like morphologies are highly desirable candidates for energy storage and conversion applications, due to the confined atomic thickness and high surface area, which would largely improve the electrochemical reaction kinetics. In this work, the sodium storage performance of TiSe 2 nanosheets and corresponding sodiation/desodiation reaction mechanism are studied for the first time. TiSe 2 nanosheets are readily exfoliated from bulk TiSe 2 after quick ultrasonication or grinding. The TiSe 2 nanosheets exhibit a reversible capacity of 147mAhg -1 at 0.1Ag -1 , and show excellent rate capability with a capacity of 103mAhg -1 at an ultra-high current density …
Suppression Of The Photocatalytic Activity Of Tio2 Nanoparticles Encapsulated By Chitosan Through A Spray-Drying Method With Potential For Use In Sunblocking Applications, Alexander Morlando, Vitor Sencadas, Dean Cardillo, Konstantin K. Konstantinov
Suppression Of The Photocatalytic Activity Of Tio2 Nanoparticles Encapsulated By Chitosan Through A Spray-Drying Method With Potential For Use In Sunblocking Applications, Alexander Morlando, Vitor Sencadas, Dean Cardillo, Konstantin K. Konstantinov
Australian Institute for Innovative Materials - Papers
Solar exposure, in particular to UVA and UVB radiation, is a major carcinogen through direct DNA damage and the production of reactive oxygen species (ROS). Inorganic UV filters present in sunscreening agents, such as titanium dioxide (TiO 2 ), are commonly employed for protection however, due to their photocatalytic nature, they have been shown to instigate the production of ROS when irradiated with UV radiation, which in turn can lead to the degradation of the sunscreening formulation and subsequent damage to the skin. In this work, chitosan/TiO 2 nanocomposite particles were produced via a spray-drying method, in a single step, …
Enhanced Uv-Light Detection Based On Zno Nanowires/Graphene Oxide Hybrid Using Cost-Effective Low Temperature Hydrothermal Process, Tariq Alzoubi, Hamzeh Qutaish, Esraa Al-Shawwa, Sameh Hamzawy
Enhanced Uv-Light Detection Based On Zno Nanowires/Graphene Oxide Hybrid Using Cost-Effective Low Temperature Hydrothermal Process, Tariq Alzoubi, Hamzeh Qutaish, Esraa Al-Shawwa, Sameh Hamzawy
Australian Institute for Innovative Materials - Papers
A new low-cost optimized hydrothermal process of direct synthesis of ZnO nanowires (NWs)/graphene oxide (GO) hybrid on silicon substrates at a low growth temperature (∼60°C) is reported. The careful optimization of the growth conditions and ZnO/GO relative ratios have resulted in high-density ZnO NWs formation with homogenous density and size distributions directly on GO sheets. The fabricated nanocomposites were intensively investigated by employing different structural, optical and electrical characterization techniques such as SEM, EDX, XRD, FTIR, UV-VIS and I-V. SEM analysis showed a formation of highly dense ZnO NWs on GO sheets with homogenous size di stributions with average approximate …
Nature Of Magnetism In Thiol-Capped Gold Nanoparticles Investigated With Muon Spin Rotation, M H. Dehn, D J. Arseneau, T Buck, David L. Cortie, D G. Fleming, Shirin King, W A. Macfarlane, Andrew M. Mcdonagh, R M. L Mcfadden, David R. G Mitchell, R F. Kiefl
Nature Of Magnetism In Thiol-Capped Gold Nanoparticles Investigated With Muon Spin Rotation, M H. Dehn, D J. Arseneau, T Buck, David L. Cortie, D G. Fleming, Shirin King, W A. Macfarlane, Andrew M. Mcdonagh, R M. L Mcfadden, David R. G Mitchell, R F. Kiefl
Australian Institute for Innovative Materials - Papers
Muon spin rotation/relaxation measurements show clear evidence for magnetism in 2.2 nm gold nanoparticles capped with butanethiol. At low temperatures (1.8 K), there is significant spin relaxation which decreases as a function of both the applied longitudinal magnetic field and increasing temperature. The results indicate that there are spatially inhomogeneous electronic moments that fluctuate with a wide distribution of correlation times. Possible explanations are discussed.
Modulation Of Donor-Acceptor Distance In A Series Of Carbazole Push-Pull Dyes; A Spectroscopic And Computational Study, Joshua Sutton, Jonathan E. Barnsley, Joseph Mapley, Pawel W. Wagner, David L. Officer, Keith C. Gordon
Modulation Of Donor-Acceptor Distance In A Series Of Carbazole Push-Pull Dyes; A Spectroscopic And Computational Study, Joshua Sutton, Jonathan E. Barnsley, Joseph Mapley, Pawel W. Wagner, David L. Officer, Keith C. Gordon
Australian Institute for Innovative Materials - Papers
A series of eight carbazole-cyanoacrylate based donor-acceptor dyes were studied. Within the series the influence of modifying the thiophene bridge, linking donor and acceptor and a change in the nature of the acceptor, from acid to ester, was explored. In this joint experimental and computational study we have used electronic absorbance and emission spectroscopies, Raman spectroscopy and computational modeling (density functional theory). From these studies it was found that extending the bridge length allowed the lowest energy transition to be systematically red shifted by 0.12 eV, allowing for limited tuning of the absorption of dyes using this structural motif. Using …
Assessing Phase Discrimination Via The Segmentation Of An Elemental Energy Dispersive X-Ray Spectroscopy Map: A Case Study Of Bi2te3and Bi2te2s, Jacob Byrnes, Azdiar Adil Gazder, Sima Aminorroaya-Yamini
Assessing Phase Discrimination Via The Segmentation Of An Elemental Energy Dispersive X-Ray Spectroscopy Map: A Case Study Of Bi2te3and Bi2te2s, Jacob Byrnes, Azdiar Adil Gazder, Sima Aminorroaya-Yamini
Australian Institute for Innovative Materials - Papers
The present case study critically assesses the efficacy of a previously proposed segmentation methodology as a means to discriminate phases via post-processing the image of an elemental map. In the Bi 2 Te 2.5 S 0.5 multiphase compound, the reference spectra of the Bi 2 Te 3 and Bi 2 Te 2 S phases are distinct enough to effectively distinguish two phases during map acquisition. Since the counts of the sulphur-K peak in the X-ray emission data are significantly higher for Bi 2 Te 2 S compared to Bi 2 Te 3 , the segmentation methodology exploits this variation and …
Free-Standing Sulfur-Polypyrrole Cathode In Conjunction With Polypyrrole-Coated Separator For Flexible Li-S Batteries, Fang Li, Mohammad Kaiser, Jianmin Ma, Zaiping Guo, Hua-Kun Liu, Jiazhao Wang
Free-Standing Sulfur-Polypyrrole Cathode In Conjunction With Polypyrrole-Coated Separator For Flexible Li-S Batteries, Fang Li, Mohammad Kaiser, Jianmin Ma, Zaiping Guo, Hua-Kun Liu, Jiazhao Wang
Australian Institute for Innovative Materials - Papers
A free-standing sulfur-polypyrrole cathode and a polypyrrole coated separator were designed for flexible Li-S batteries. The free-standing sulfur-polypyrrole cathode was prepared by directly pasting a sulfur-coated polypyrrole (S@PPy) nanofiber composite on a flexible and conductive polypyrrole (PPy) film. Compared with carbonaceous matrixes, PPy has a strong interaction with polysulfides to mitigate the dissolution of polysulfides due to its unique chain structure and the lone pair electrons in the nitrogen atoms in PPy. In addition, the as-prepared PPy film not only shows excellent mechanical elasticity, but also possesses a rough surface, which can accommodate volume expansion, enhance the adhesion of active …
Fluorinated Phosphazene Derivative - A Promising Electrolyte Additive For High Voltage Lithium Ion Batteries: From Electrochemical Performance To Corrosion Mechanism, Jianwen Liu, X Song, Lai Zhou, Shiquan Wang, Wei Song, Wei Liu, H L. Long, Lixin Zhou, Huimin Wu, Chuanqi Feng, Zaiping Guo
Fluorinated Phosphazene Derivative - A Promising Electrolyte Additive For High Voltage Lithium Ion Batteries: From Electrochemical Performance To Corrosion Mechanism, Jianwen Liu, X Song, Lai Zhou, Shiquan Wang, Wei Song, Wei Liu, H L. Long, Lixin Zhou, Huimin Wu, Chuanqi Feng, Zaiping Guo
Australian Institute for Innovative Materials - Papers
The development of novel electrolytes for next-generation high voltage lithium ion battery is of primary importance. In this work, a fluorinated phosphazene derivative, ethoxy-(pentafluoro)-cyclotriphosphazene (PFN), is proposed as a novel electrolyte additive for improving the electrochemical performance and safety of lithium nickel manganese oxide (LiNi 0.5 Mn 1.5 O 4 ) cathode. With the addition of PFN, the electrolyte can be preferentially oxidized and decomposed, thus producing some linear polymers, multi-ring polymers, LiNO 3 , RONO 2 Li (RONO 2 : nitrate ester functional group, with R standing for any organic residue), Li 3 PO 4 , and ROPO 3 …
A Standard Nomenclature For Referencing And Authentication Of Pluripotent Stem Cells, Andreas Kurtz, Stefanie Seltmann, Amos Bairoch, Marie-Sophie Bittner, K Bruce, Amanda Capes-Davis, Laura Clarke, Jeremy Micah Crook, Laurence Daheron, Johannes Dewender, Adam Faulconbridge, Wataru Fujibuchi, Alexander Gutteridge, Derek Hei, Yong-Ou Kim, Jung-Hyun Kim, Anja Kolb-Kokocinski, Fritz Lekschas, Geoffrey Lomax, Jeanne F. Loring, Tenneille Ludwig, Nancy Mah, Tohru Matsui, Robert Muller, Helen Parkinson, Michael Sheldon, Kelly P. Smith, Harald Stachelscheid, Glyn N. Stacey, Ian Streeter, Anna Veiga, Ren-He Xu
A Standard Nomenclature For Referencing And Authentication Of Pluripotent Stem Cells, Andreas Kurtz, Stefanie Seltmann, Amos Bairoch, Marie-Sophie Bittner, K Bruce, Amanda Capes-Davis, Laura Clarke, Jeremy Micah Crook, Laurence Daheron, Johannes Dewender, Adam Faulconbridge, Wataru Fujibuchi, Alexander Gutteridge, Derek Hei, Yong-Ou Kim, Jung-Hyun Kim, Anja Kolb-Kokocinski, Fritz Lekschas, Geoffrey Lomax, Jeanne F. Loring, Tenneille Ludwig, Nancy Mah, Tohru Matsui, Robert Muller, Helen Parkinson, Michael Sheldon, Kelly P. Smith, Harald Stachelscheid, Glyn N. Stacey, Ian Streeter, Anna Veiga, Ren-He Xu
Australian Institute for Innovative Materials - Papers
Unambiguous cell line authentication is essential to avoid loss of association between data and cells. The risk for loss of references increases with the rapidity that new human pluripotent stem cell (hPSC) lines are generated, exchanged, and implemented. Ideally, a single name should be used as a generally applied reference for each cell line to access and unify cell-related information across publications, cell banks, cell registries, and databases and to ensure scientific reproducibility. We discuss the needs and requirements for such a unique identifier and implement a standard nomenclature for hPSCs, which can be automatically generated and registered by the …
Magnetorheological Technology For Fabricating Tunable Solid Electrolyte With Enhanced Conductivity And Mechanical Property, Gangrou Peng, Yu Ge, Jie Ding, Caiyun Wang, Gordon G. Wallace, Weihua Li
Magnetorheological Technology For Fabricating Tunable Solid Electrolyte With Enhanced Conductivity And Mechanical Property, Gangrou Peng, Yu Ge, Jie Ding, Caiyun Wang, Gordon G. Wallace, Weihua Li
Australian Institute for Innovative Materials - Papers
Ionogels are a new class of hybrid materials where ionic liquids are immobilized by macromolecular support. The excessive amount of crosslinking polymer enhances the mechanical strength but compromises the conductivity. Here, we report an elastomeric magnetorheological (MR) ionogel with an enhanced conductivity and mechanical strength as well. Following the application of magnetic nanoparticles into an ionic liquid containing minimum cross-linking agent, the formation, thus physical properties, of MR ionogels are co-controlled by simultaneously applied UV light and external magnetic field. The application of MR ionogels as solid electrolytes in supercapacitors is also demonstrated to study electrochemical performance. This work opens …
Carbon Nanotube-Induced Phase And Stability Engineering: A Strained Cobalt-Doped Wse2/Mwnt Heterostructure For Enhanced Hydrogen Evolution Reaction, Guoyuan Zhang, Xiaoli Zheng, Qun Xu, Jianan Zhang, Wei Liu, Jun Chen
Carbon Nanotube-Induced Phase And Stability Engineering: A Strained Cobalt-Doped Wse2/Mwnt Heterostructure For Enhanced Hydrogen Evolution Reaction, Guoyuan Zhang, Xiaoli Zheng, Qun Xu, Jianan Zhang, Wei Liu, Jun Chen
Australian Institute for Innovative Materials - Papers
Efficient evolution of hydrogen with inexpensive, highly active and long-term stable catalysts in a wide pH range holds tremendous promise for clean energy. Here, we report the synthesis of a cobalt-doped tungsten selenide/multiwalled carbon nanotube (Co-WSe 2 /MWNT) heterostructure for the first time, wherein the MWNTs act as an efficient topological template for the nucleation and growth of curved Co-WSe 2 nanosheets with abundant accessible active sites. Furthermore, we demonstrate that the MWNT induced curvature strain not only promotes the predominant 1T phase of active Co-WSe 2 , but also enhances its anti-oxidative stability. Further study indicates that the as-prepared …
The Precipitation Behavior And Hot Deformation Characteristics Of Electron Beam Smelted Inconel 740 Superalloy, Xiaogang You, Yi Tan, Chang Wu, Qifan You, Longhai Zhao, Jiayan Li
The Precipitation Behavior And Hot Deformation Characteristics Of Electron Beam Smelted Inconel 740 Superalloy, Xiaogang You, Yi Tan, Chang Wu, Qifan You, Longhai Zhao, Jiayan Li
Australian Institute for Innovative Materials - Papers
The Inconel 740 superalloy was prepared by the electron beam smelting (EBS) technology, the precipitation behavior and strengthening mechanism were studied, and the hot deformation characteristics of EBS 740 superalloy were investigated. The results indicate that the EBS 740 superalloy is mainly strengthened by the mechanism of weakly coupled dislocation shearing, and the resulting critical shear stress is calculated to be 234.6 MPa. The deformation parameters show a great influence on the flow behavior of EBS 740 superalloy. The strain rate sensitivity exponent increases with the increasing of deformation temperature, and the strain hardening exponent shows a decreasing trend with …
Iron And Nickel Doped Cose2 As Efficient Non Precious Metal Catalysts For Oxygen Reduction, Beibei Yu, Jiayi Jin, Huimin Wu, Shengfu Wang, Qinghua Xia, Hua-Kun Liu
Iron And Nickel Doped Cose2 As Efficient Non Precious Metal Catalysts For Oxygen Reduction, Beibei Yu, Jiayi Jin, Huimin Wu, Shengfu Wang, Qinghua Xia, Hua-Kun Liu
Australian Institute for Innovative Materials - Papers
Iron and nickel doped CoSe2 were prepared by solvothermal method, and they were proved to be ternary chalcogenides by series of physical characterization. The effects of the iron and nickel contents on the oxygen reduction reaction were investigated by electrochemical measurements, and the highest activities were obtained on Co0.7Fe0.3Se2 and Co0.7Ni0.3Se2, respectively. Both Co0.7Fe0.3Se2 and Co0.7Ni0.3Se2 presented four-electron pathway. Furthermore, Co0.7Fe0.3Se2 exhibited more positive cathodic peak potential (0.564 V) and onset potential (0.759 V) than these of Co0.7Ni0.3Se2 (0.558 V and 0.741 V). And Co0.7Fe0.3Se2 displayed even superior stability and better tolerance to methanol, ethanol and ethylene glycol crossover effects …
3d Printing Of Tough Hydrogel Composites With Spatially Varying Materials Properties, Shannon Bakarich, Robert A. Gorkin Iii, Reece Gately, Sina Naficy, Marc In Het Panhuis, Geoffrey M. Spinks
3d Printing Of Tough Hydrogel Composites With Spatially Varying Materials Properties, Shannon Bakarich, Robert A. Gorkin Iii, Reece Gately, Sina Naficy, Marc In Het Panhuis, Geoffrey M. Spinks
Australian Institute for Innovative Materials - Papers
Biofabrication is the process of transforming materials into systems that reproduce biological structure and function. Previous attempts to create biomimetic systems have often used single materials shaped into limited configurations that do not mimic the heterogeneous structure and properties of many biological tissues. The identification of new bio-inspired materials alongside the development of appropriate fabrication techniques is the key to overcoming the challenge of replicating the functional gradients of these heterogeneous tissues. This paper presents a new extrusion-based gradient printing system that utilizes custom software to control the rates at which two inks are dispensed through a mixing nozzle. The …