文献类型：期刊文献

英文题名：Bimetallic Doped RuO2 with Manganese and Iron as Electrocatalysts for Favorable Oxygen Evolution Reaction Performance

作者：Wu, Yiyi[1];Tariq, Muhammad[1];Zaman, Waqas Qamar[3];Sun, Wei[1];Zhou, Zhenhua[1];Yang, Ji[1,2]

机构：[1]East China Univ Sci & Technol, Sch Resources & Environm Engn, State Environm Protect Key Lab Environm Risk Asse, Shanghai 200237, Peoples R China;[2]Shanghai Inst Pollut Control & Ecol Secur, Shanghai 200092, Peoples R China;[3]Natl Univ Sci & Technol, Sch Civil & Environm Engn, Inst Environm Sci & Engn, Islamabad 44000, Pakistan

年份：2020

卷号：5

期号：13

起止页码：7342

外文期刊名：ACS OMEGA

收录：;WOS:【SCI-EXPANDED(收录号:WOS:000525754500032)】；

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

语种：英文

摘要：Synthesizing oxygen evolution reaction (OER) catalysts with enhanced activity by codoping has been proven to be a feasible approach for the efficient use of noble metals via renewing their basic intrinsic properties. In continuation of the research in codoping, we prepare a ruthenium-based bimetallic doped catalyst MnxFeyRu1-x-yO2 with an outstanding OER activity as compared to pure RuO2, one of the state-of-the-art OER catalysts. The synthesized codoped RuO2 with a Mn/Fe molar ratio of 1 reflected a Tafel slope of only 41 mV dec(-1), which is appreciably lower than 64 mV dec(-1) for pure RuO2. The X-ray photoelectron spectroscopy (XPS) performed reveals that oxygen vacancy and manganese valency are the key factors of the OER activity for codoped catalysts.