Journal ArticleDOI
SYNTHESIS AND HYDROGEN ABSORPTION KINETICS OF V4Cr4Ti ALLOY
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In this article, the hydrogen absorption characteristics of V4Cr4Ti alloy have been evaluated by measuring the pressure composition isotherm (PCIT) at 57°C temperature.Abstract:
V4Cr4Ti alloy is synthesized by aluminothermy process followed by electron beam refining. Hydrogen absorption characteristics of the alloy have been evaluated by measuring the pressure composition isotherm (PCIT) at 57 °C temperature. Two plateau pressures are observed in the PCIT curve. Substantial decrease in the hydrogen absorption capacity of the alloy as compared to vanadium has been recorded. Hydrogen absorption kinetics of the alloy was investigated in the temperature range of 200–500 °C. Three-dimensional diffusion appears to be the rate controlling step of the hydrogen absorption. The apparent activation energy was calculated as 0.16 eV/atom-hydrogen.read more
Citations
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Journal ArticleDOI
Development of vanadium based hydrogen storage material: A review
TL;DR: In this paper, a systematic review of vanadium as a base material for hydrogen storage and permeation membrane is presented, where the vanadium has shown high hydrogen solubility and diffusivity at nominal temperature and pressure conditions.
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High performance FeTi – 3.1 mass % V alloy for on board hydrogen storage solution
TL;DR: In this paper, the crystal structure of FeTi intermetallic and FeTi-3.1 mass % V alloy was studied in a thermobalance attached to a Sieverts apparatus at a temperature of 327 K under 0.2 MPa hydrogen pressure.
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Thermodynamics and kinetics of MgH2-nfTa2O5 composite for reversible hydrogen storage application
Sanjay Kumar,G.P. Tiwari +1 more
TL;DR: In this article, the thermodynamics and kinetics of hydrogen absorption and desorption of nfTa2O5-Mg-H2 composite have been studied and shown cyclic stability up to fifty hydrogen absorption-desorption without significant changes in the kinetics and hydrogen storage capacity.
Journal ArticleDOI
Thermodynamics and kinetics of nano-engineered Mg-MgH2 system for reversible hydrogen storage application
TL;DR: In this paper, the authors studied the thermodynamics and kinetics of hydrogenation-dehydrogenation of nanometric iron (nFe) doped Mg-MgH 2 system.
Journal ArticleDOI
Enhancing the Hydrogen Storage Properties of AxBy Intermetallic Compounds by Partial Substitution: A Short Review
Andrii Lys,Julien O. Fadonougbo,Mohammad Faisal,Jin-Yoo Suh,Young-Su Lee,Jae-Hyeok Shim,Jihye Park,Young Whan Cho +7 more
TL;DR: In this paper, a brief overview of partial substitution in several AxBy alloys, from the long-established AB5 and AB2-types, to the recently attractive and extensively studied AB and AB3 alloys including the largely documented solid-solution alloy systems, is presented.
References
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Journal ArticleDOI
Nonisothermal decomposition kinetics of [CoC2O4·2.5H2O]n
TL;DR: In this article, the decomposition of CoC2O4·2.5H2O was investigated in the air of the homopolynuclear coordination compound [CoC 2O 4·2] n 2.
Journal ArticleDOI
Composition design for Laves phase-related BCC-V solid solution alloys with large hydrogen storage capacities
TL;DR: In this article, the authors analyzed the alloy composition characteristics with large hydrogen storage capacities in Laves phase-related BCC solid solution alloy systems using the cluster line approach, where a dense-packed icosahedral cluster A6B7 characterizes the local structure of AB2 Laves phases, in a ternary system, such as Ti-Cr(Mn, Fe)-V, where A-B-C formed AB2Laves phases while A-C and B-C tend to form solid solutions.
Journal ArticleDOI
Solid state reactions in the potassium iodate and molybdenum(VI) oxide system
K. Suba,M. R. Udupa +1 more
TL;DR: In this paper, the reaction between potassium iodate and molybdenum(VI) oxide in mixtures of different mole ratios has been investigated employing TG and DTA techniques in static air atmosphere.