文献类型：期刊文献

英文题名：Ni-Co Codoped RuO2 with Outstanding Oxygen Evolution Reaction Performance

作者：Wu, Yiyi[1];Tariq, Muhammad[1];Zaman, Waqas Qamar[1];Sun, Wei[1];Zhou, Zhenhua[1];Yang, Ji[1,2]

机构：[1]East China Univ Sci & Technol, State Environm Protect Key Lab Environm Risk Asse, Sch Resources & Environm Engn, 130 Meilong Rd, Shanghai 200237, Peoples R China;[2]Shanghai Inst Pollut Control & Ecol Secur, Shanghai 200092, Peoples R China

年份：2019

卷号：2

期号：6

起止页码：4105

外文期刊名：ACS APPLIED ENERGY MATERIALS

收录：;EI(收录号：20192507073734);WOS:【SCI-EXPANDED(收录号:WOS:000473116600020)】；

基金：This work was financially supported by the National Natural Science Foundation of China (Grant 51778229).

语种：英文

外文关键词：oxygen evolution reaction; OER; RuO2; Ni-Co codoping; water splitting; rutile phase catalyst

摘要：Synthesizing oxygen evolution reaction (OER) catalysts with high activity by codoping has been proven to be feasible for effectively using noble metals via renewing their basic properties. Here, we prepare two series of Ru based codoped catalysts NixCoyRu1-x-yO2 with outstanding OER activity compared with RuO2, one of the state-of-the-art OER catalysts. The molar ratio of case dopants, nickel and cobalt, is regulated from 1:1 to 1:1.5 for the host structure RuO2 as the main variable. The synthesized codoped RuO2 with Co/Ni of 1.5 reflected a Tafel slope of only 32 mV dec(-1), which is appreciably lower than the 64 mV dec(-1) for pure RuO2. The performed X-ray photoelectron spectroscopy (XPS) indicated that the key factor of OER activity for codoped catalysts with different dopant ratio is the oxygen vacancy.