文献类型：期刊文献

英文题名：Boosted up stability and activity of oxygen vacancy enriched RuO2/MoO3 mixed oxide composite for oxygen evolution reaction

作者：Tariq, Muhammad[1];Wu, Yiyi[1];Ma, Chenglong[1];Ali, Meesam[1,2];Zaman, Waqas Qamar[3];Abbas, Zain[1];Ayub, Khurram Shahzad[1,4];Zhou, Jiacheng[1];Wang, Gehui[1];Cao, Li-mei[1];Yang, Ji[1,5]

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]Muhammad Nawaz Sharif Univ Engn & Technol, Dept Chem Engn, Multan 60000, Pakistan;[3]Natl Univ Sci & Technol NUST, Sch Civil & Environm Engn, Inst Environm Sci & Engn, Sect H-12, Islamabad 44000, Pakistan;[4]Univ Gujrat, Dept Chem Engn, Hafiz Hayat Campus, Gujrat, Pakistan;[5]Shanghai Inst Pollut Control & Ecol Secur, Shanghai 200092, Peoples R China

年份：2020

卷号：45

期号：35

起止页码：17287

外文期刊名：INTERNATIONAL JOURNAL OF HYDROGEN ENERGY

收录：;EI(收录号：20202108701318);WOS:【SCI-EXPANDED(收录号:WOS:000546826200021)】；

基金：The conducted research study has been financially supported by the National Natural Science Foundation of China with grant number of 51778229.

语种：英文

外文关键词：Oxygen evolution reaction; Electrochemical catalyst; Ruthenium oxide; Molybdenum oxide; Water splitting

摘要：Iridium free, acidic-stable, cost-effective, and efficient oxygen evolution reaction (OER) electrocatalyst is considered to be the bottleneck in the quest for sustainable energy production/storage devices. RuO2 has been proved as a highly active and standard OER electrocatalyst with poor stability. Herein, we are successfully providing the facile approach to synthesize the mixed oxide composite of RuO2 tailored with MoO3. Fifty percent reduction of noble metal contents, two times enhanced activity and excellent durability as compared to pure homemade and commercial RuO2 have been confirmed by numerous characterization techniques. Enhanced electrochemical performance of best mixed oxide composite is observed due to increasing number of oxygen vacancies, electronic distortion, lower oxidation state of noble metal, and reduced value of the Tafel slope. Furthermore, the best composite shows the 7-fold increase in electrochemical surface area, 3.2 times improvement in the bulk mass activity, and less value of overpotential. (C) 2020 Hydrogen Energy Publications LLC. Published by Elsevier Ltd. All rights reserved.