SYNTHESIS AND REACTION KINETICS OF A Mg-Fe-Mn-Ni ALLOY FOR HYDROGEN STORAGE
作者： K. G. Bambhaniya , G. S. Grewal , V. Shrinet , T. P. Govindan , N. L. Singh
DOI: 10.1080/00986445.2012.662661
关键词:
摘要: This article presents results of a characterization study undertaken on Mg-Fe-Mn-Ni alloy for hydrogen storage application. undergoes rapid activation in less than five charging/discharging runs and is able to reversibly uptake 5 mass% H2. The characteristics this are evaluated as function temperature. optimal temperatures hydriding dehydriding identified 325.5°C 372°C, respectively. kinetics data fitted lumped first-order reaction models well spherically symmetric diffusion model with kinetics. Based the analysis, constants derived. Further, based van ‘t Hoff equation, formation enthalpy entropy determined 65 ± 3.1 kJ/mole 101 ± 4.7 J/mole K,
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