文献类型：期刊文献

英文题名：Efficient electrocatalytic formic acid oxidation over PdAu-manganese oxide/carbon

作者：Zhu, Yihui[1];Pan, Yu[1];Zhu, Yihua[1];Jiang, Hongliang[2];Shen, Jianhua[1];Li, Chunzhong[1,2]

机构：[1]East China Univ Sci & Technol, Frontiers Sci Ctr Mat & Dynam Chem, Sch Mat Sci & Engn, Key Lab Ultrafine Mat,Minist Educ,Shanghai Engn R, Shanghai 200237, Peoples R China;[2]East China Univ Sci & Technol, Sch Chem Engn, Shanghai 200237, Peoples R China

年份：2021

卷号：593

起止页码：244

外文期刊名：JOURNAL OF COLLOID AND INTERFACE SCIENCE

收录：;EI(收录号：20211210106922);WOS:【SCI-EXPANDED(收录号:WOS:000641078100010)】；

基金：This work was supported by the National Natural Science Foundation of China (21838003, 21676093, 21776092, 21808061 and 91834301) , the Shanghai Scientific and Technological Innovation Project (18JC1410500 and 19JC1410400) , and the Fundamental Research Funds for the Central Universities (222201718002) .

语种：英文

外文关键词：PdAu alloy catalysts; Formic acid oxidation; DFT; Oxygen vacancies

摘要：Developing high efficient Palladium-metal-based electrocatalysts is of great significance for formic acid oxidation (FAO) reaction. Here, we experimentally synthesize PdAu alloy composited with MnOx electrocatalyst (PdAu-MnOx/C) and illustrate its remarkable FAO performance. By virtue of theory studies, we find that Pd-Au bridges have superior adsorption ability towards HCOO* and oxygen vacancies in MnOx make HCOO* formation from HCOOH easier, synergistically lead to the outstanding FAO performance with specific activity and mass activity of 19.0 mA cm-2 and 4539 mA mg-1 Pd+Au respectively, which are 2.6 times and 3.5 times higher than commercial Pd/C. This work shed some light toward development of high-performance Pd-based electrocatalysts for FAO. (c) 2021 Elsevier Inc. All rights reserved.