Structure and electrochemical hydrogen storage behaviors of Mg-Ce-Ni-Al-based alloys prepared by mechanical milling
来源期刊：Journal of Rare Earths2020年第10期
论文作者：Yanghuan Zhang Pengpeng Wang Wei Zhang Wengang Bu Yan Qi Shihai Guo
文章页码：1093 - 1102
摘 要：The influences of milling time and Ce content on the electrochemical property and micro structure of asmilled Mg1-xCexNi0.9Al0.1（x=0,0.02,0.04,0.06,0.08）+50 wt%Ni alloys were investigated systematically.The as-milled alloys have an outstanding activation property.The cycle stability conspicuously grows up with milling time and Ce proportion increasing.The capacity retention rate at 100 th cycle of x=0.02 alloy augments from 47% to 63% when prolonging milling time from 5 to 30 h and it grows from55% to 82% for the 30 h milled alloy with Ce content growing from 0 to 0.08.The discharge capacity of x=0.02 alloy grows up invariably with milling time prolonging,while that of the 30 h milled alloys has the maximal value of 578.4 mAh/g with Ce content increasing.Moreover,the electrochemical kinetic properties of alloys significantly improve with milling duration extending,while they have the maximal values with Ce proportion varying.
Yanghuan Zhang1,2，Pengpeng Wang1,2，Wei Zhang2，Wengang Bu2，Yan Qi2，Shihai Guo2
1. Key Laboratory of Integrated Exploitation of Baiyun Obo Multi-Metal Resources,Inner Mongolia University of Science and Technology2. Department of Functional Material Research,Central Iron and Steel Research Institute
摘 要：The influences of milling time and Ce content on the electrochemical property and micro structure of asmilled Mg1-xCexNi0.9Al0.1（x=0,0.02,0.04,0.06,0.08）+50 wt%Ni alloys were investigated systematically.The as-milled alloys have an outstanding activation property.The cycle stability conspicuously grows up with milling time and Ce proportion increasing.The capacity retention rate at 100 th cycle of x=0.02 alloy augments from 47% to 63% when prolonging milling time from 5 to 30 h and it grows from55% to 82% for the 30 h milled alloy with Ce content growing from 0 to 0.08.The discharge capacity of x=0.02 alloy grows up invariably with milling time prolonging,while that of the 30 h milled alloys has the maximal value of 578.4 mAh/g with Ce content increasing.Moreover,the electrochemical kinetic properties of alloys significantly improve with milling duration extending,while they have the maximal values with Ce proportion varying.
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