典型文献
Effect of carbon coating on electrochemical properties of AB3.5-type La-Y-Ni-based hydrogen storage alloys
文献摘要：
The superlattice La-Y-Ni-based hydrogen storage alloys have high discharge capacity and are easy to prepare.However,there is still a gap in commercial applications because of the severe corrosion of the alloys in electrolyte and poor high-rate dischargeability(HRD).Therefore,(LaSmY)(NiMnA1)3.5 alloy was prepared by magnetic levitation induction melting,and then the alloy was coated with different contents(0.1 wt％-1.0 wt％)of nano-carbons by low-temperature sintering with sucrose as the carbon source in this work.The results show that the cyclic stability and HRD of the alloy first increase and then decrease with the increase of carbon contents.The kinetic results show that the electrocatalytic activity and conductivity of the alloy electrodes can be enhanced by carbon coating.The electrochemical properties of the alloy are the best when the carbon coating content is 0.3 wt％.Compared with the uncoated alloy,the maximum discharge capacity(Cmax)improves from 354.5 to 359.0 mAh/g,the capacity retention rate after 300 cycles(S300)enhances from 73.15％to 80.01％,and the HRD1200 of the alloy enhances from 74.39％to 74.39％.
文献关键词：
中图分类号：
作者姓名：
Ran Wu;Huiping Yuan;Yuru Liu;Zhenyu Hou;Zhinian Li;Shumao Wang;Lijun Jiang;Lei Hao
作者机构：
National Engineering Research Center of Nonferrous Metals Materials and Products for New Energy,GRINM Group Co.,Ltd.,Beijing 100088,China;GRIMAT Engineering Institute Co.,Ltd.,Beijing 101407,China;General Research Institute for Nonferrous Metals,Beijing 100088,China;Institute for Advanced Materials and Technology,University of Science&Technology Beijing,Beijing 100083,China
文献出处：
引用格式：
[1]Ran Wu;Huiping Yuan;Yuru Liu;Zhenyu Hou;Zhinian Li;Shumao Wang;Lijun Jiang;Lei Hao-.Effect of carbon coating on electrochemical properties of AB3.5-type La-Y-Ni-based hydrogen storage alloys)[J].稀土学报（英文版）,2022(08):1264-1271
A类：
dischargeability,LaSmY,NiMnA1,HRD1200
B类：
Effect,coating,electrochemical,properties,AB3,type,hydrogen,storage,alloys,superlattice,have,high,capacity,easy,However,there,still,gap,commercial,applications,because,severe,corrosion,electrolyte,poor,rate,Therefore,was,prepared,by,magnetic,levitation,induction,melting,then,different,contents,wt,nano,carbons,low,temperature,sintering,sucrose,source,this,work,results,show,that,cyclic,stability,first,increase,decrease,kinetic,electrocatalytic,activity,conductivity,electrodes,can,enhanced,best,when,Compared,uncoated,maximum,Cmax,improves,from,mAh,retention,after,cycles,S300,enhances
AB值：
0.475238
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