Cations distribution of CuxCo3-xO4 and its electrocatalytic activities for oxygen evolution reaction
Cations distribution of CuxCo3-xO4 and its electrocatalytic activities for oxygen evolution reaction
复制标题
CuxCo3-xO4的阳离子分布及其析氧反应电催化活性
DOI：
10.1016/j.ijhydene.2008.05.032
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发表时间：
2008-09-01
影响因子：
7.2
通讯作者：
Li, Jianbao
中科院分区：
文献类型：
--
作者：
Chi, Bo;Lin, Hong;Li, Jianbao
采用氢氧化物共沉淀法合成了不同x值的CuxCo 3-xO 4尖晶石。采用TGA、XRD、BET、SEM等分析手段对氧化物进行了表征。根据Cu含量（x）的变化，讨论了CuxCo 3-xO 4的阳离子分布。随着x值从0.7增加到0.9，更多的Co 3+离子进入尖晶石结构的四面体位置。电化学测试结果表明，Co 3+离子在尖晶石型氧化物中四面体位置的占据有助于提高其对碱性水电解析氧反应的电催化活性。(c)2008年国际氢能协会。由爱思唯尔有限公司出版。保留所有权利。
CuxCo3-xO4 spinels with different x values were synthesized by hydroxide co-precipitation method. The oxides were analyzed by TGA, XRD, BET, and SEM. The cations distribution of CuxCo3-xO4 was discussed according to the change of the copper content (x). As x value increases from 0.7 to 0.9, more Co3+ ions enter the tetrahedral sites of spinel structure. Electrochemical measurements show that the occupation of Co3+ ions in tetrahedral sites is helpful to increase the electrocatalytic activities of the spinel oxides for oxygen evolution reaction in alkaline water electrolysis. (c) 2008 International Association for Hydrogen Energy. Published by Elsevier Ltd. All rights reserved.