Comparative investigation on electrochemical properties of SmMgNi4, Sm2MgNi9 and SmNi5 compounds
Comparative investigation on electrochemical properties of SmMgNi4, Sm2MgNi9 and SmNi5 compounds
复制标题
SmMgNi4、Sm2MgNi9、SmNi5化合物电化学性能对比研究
DOI：
10.1016/j.ijhydene.2016.09.144
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发表时间：
2017-02-16
影响因子：
7.2
通讯作者：
Zhang, Q. A.
中科院分区：
文献类型：
--
作者：
Li, X. L.;Zhang, Q. A.
本文比较研究了SmMgNi 4、Sm2 MgNi 9和SmNi 5化合物的电化学性能。结果表明，SmNi5合金电极在298 K时几乎没有放电容量，Sm2MgNi9合金电极的放电容量大于SmMgNi4合金电极。此外，Sm2MgNi9电极的高倍率放电性能和循环稳定性也优于SmMgNi4电极。Sm_2MgNi_9合金电化学性能的提高主要归因于合适的结构参数和较高的镍含量。(C)2016年氢能出版有限责任公司。由爱思唯尔有限公司出版。保留所有权利。
The electrochemical properties of SmMgNi4, Sm2MgNi9 and SmNi5 compounds have been investigated comparatively in this work. It is found that SmNi5 alloy electrode displays almost no discharge capacity and Sm2MgNi9 alloy electrode has a larger discharge capacity than SmMgNi4 alloy electrode at 298 K. Furthermore, the high rate discharge ability and cycle stability of Sm2MgNi9 electrode are also better than those of SmMgNi4 electrode. The improvement in electrochemical properties of Sm2MgNi9 is ascribed to suitable structural parameters and higher nickel content. (C) 2016 Hydrogen Energy Publications LLC. Published by Elsevier Ltd. All rights reserved.