Abstract
The present communication deals with the hydrogen storage characteristics of C15 laves phase ZrMn2–x Ni x system tailored within the x values of 1·25 to 1·50. Drastic variations in thermodynamics of the hydride phase is observed for any little changes of concentration x within this narrow range. The most promising room temperature hydrogen storage materials are found to be formed within the range of 1·35 to 1·45 where ~ 2·5 to 2·9 H/F.U. can be reversibly stored under the ideal operating conditions. The heat of the reaction is found to be ~ 17 kJ/mol, which means these are promising candidates for stationary and short range mobile applications. The phase structural features and the thermodynamic aspects of all the materials are discussed in detail.
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Kumar, V., Pukazhselvan, D., Tyagi, A.K. et al. Hydrogen absorption/desorption characteristics of room temperature ZrMn2–x Ni x system (x = 1·25–1·50). Bull Mater Sci 37, 655–660 (2014). https://doi.org/10.1007/s12034-014-0706-x
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DOI: https://doi.org/10.1007/s12034-014-0706-x