Journal
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
Volume 35, Issue 23, Pages 12858-12863Publisher
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.ijhydene.2010.08.141
Keywords
Hydrogen storage alloys; Surface treatment; Electrochemical properties; Kinetics
Categories
Funding
- National Natural Science Foundation of China [20673093]
- Natural Science Foundation of Hebei Province [B2007000303]
- Universities and Colleges of Hebei Province
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In order to improve kinetic properties of La-Mg-Ni based hydrogen storage alloys Mo-Ni treatment was applied to La0 88Mg0 12Ni2 95Mn0 10Co0 55Al0 10 alloy powders FESEM results showed that after Mo-Ni treatment some network shaped substance with nano size formed on the surface of the alloy particles The EDS results revealed increase in Ni content and emerge of Mo element EIS and Linear polarization showed that charge transfer resistance decreased and exchange current density increased for the treated alloy electrode and the high rate dischargeability (HRD) was consequently improved HRD at 1500 mA/g increased from 22 5% to 39 5% Mo and Ni single treatments were performed compared with the Mo-Ni treatment and the results showed that the single treatment improved HRD slightly far less than the Mo-Ni treatment (C) 2010 Professor T Nejat Veziroglu Published by Elsevier Ltd All rights reserved
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