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Now showing items 51-60 of 76
Components for PEM fuel cells: An overview
(Trans Tech Publications, 2010)
Fuel cells, as devices for direct conversion of the chemical energy of a fuel into
electricity by electrochemical reactions, are among the key enabling technologies for the transition
to a hydrogen-based economy. Among ...
Modelling of metal hydride hydrogen compressors from thermodynamics of hydrogen – Metal interactions viewpoint: Part I. Assessment of the performance of metal hydride materials
(Elsevier Ltd, 2021)
This work presents a model to determine productivity and heat consumption of hydrogen compression utilising metal hydrides (MH) by using Pressure – Composition – Temperature (PCT) diagrams of the MH materials at defined ...
Electrochemical performance of zinc carbodiimides based porous nanocomposites as supercapacitors
(Elsevier, 2021)
The low energy densities of supercapacitors are generally limited by the used anodes. To develop supercapacitors with high energy densities, metal–organic framework (TRD-ZIF-8) derived honeycomb-like porous zinc carbodiimide ...
Three-dimensional N-doped super-hydrophilic carbon electrodes with porosity tailored by Cu2O template-assisted electrochemical oxidation to improve the performance of electrical double-layer capacitors
(Royal Society of Chemistry, 2021)
Three-dimensional (3D), binder-free, porous carbon-based electrodes exhibit high charge storage ability in electrical double-layer capacitors owing to their well-developed porous structures enhancing mass transfer and ...
Metal hydride hydrogen storage and compression systems for energy storage technologies
(Elsevier, 2021)
Along with a brief overview of literature data on energy storage technologies utilising hydrogen and metal hydrides, this article presents results of the related R&D activities carried out by the authors. The focus is put ...
Synthesis, characterisation and evaluation of IrO2 based binary metal oxide electrocatalysts for oxygen evolution reaction
(Electochemical Society Inc., 2012)
IrO2, IrxRu1-xO2, IrxSnx-1O2 and IrxTax-1O2 (1 ≥ x ≥ 0.7) were synthesized, characterised and evaluated as electrocatalysts for the oxygen evolution reaction in solid polymer electrolyte electrolysers. The electrocatalysts ...
Hollow-structured NiCoP nanorods as high-performance electrodes for asymmetric supercapacitors
(Elsevier, 2020)
One-dimensional hollow-structured NiCoP nanorods are synthesized via Kirkendall effect resulting from different diffusion rates of Ni and Co ions at 350 °C, using NaH2PO2 as a phosphorization agent. Various techniques were ...
An Fe@Fe3C-inserted carbon nanotube/graphite composite supportproviding highly dispersed Pt nanoparticles for ethanol oxidation
(Elsevier, 2014)
Iron/iron carbide-inserted carbon nanotube/graphite composite (Fe-C) was prepared by pyrolyzing amixture of melamine and iron (III) chloride to form a support for high loading of Pt nanoparticles as adirect ethanol fuel ...
Optimal design of combined two-tank latent and metal hydrides-based thermochemical heat storage systems for high-temperature waste heat recovery
(Multidisciplinary Digital Publishing Institute (MDPI), 2020)
The integration of thermal energy storage systems (TES) in waste-heat recovery applications
shows great potential for energy efficiency improvement. In this study, a 2D mathematical model
is formulated to analyze the ...
Improvement of hydriding kinetics of LaNi5-type metal alloy through substitution of nickel with tin followed by palladium deposition
(Indian Academy of Sciences, 2022)
Hydrogen absorption performances of LaNi5 alloy are sensitive to the surface reactions with poisonous gases,
such as oxygen, readily forming oxides/hydroxides. In this study, we report the studies on the hydrogen ...