文献类型：期刊文献

英文题名：Bifunctional effect of Bi(OH)3 on the PdBi surface as interfacial Bronsted base enables ethanol electro-oxidization

作者：Huang, Jialu[1];Deng, Chengwei[3];Liu, Yue[2];Han, Tingting[3];Ji, Feng[3];Zhang, Yuehua[1];Lu, Hongbin[1];Hua, Ping[1];Zhang, Bowei[4];Qian, Tao[1];Yuan, Xiaolei[1];Yang, Yaoyue[2];Yao, Yong[1]

机构：[1]Nantong Univ, Sch Chem & Chem Engn, Nantong 226019, Peoples R China;[2]Southwest Minzu Univ, Sch Chem & Environm, Key Lab Gen Chem, Natl Ethn Affairs Commiss, Chengdu 610041, Peoples R China;[3]Shanghai Inst Space Power Sources, State Key Lab Space Power Sources Technol, Shanghai 200245, Peoples R China;[4]East China Univ Sci & Technol, Sch Mech & Power Engn, Shanghai 200237, Peoples R China

年份：2022

卷号：611

起止页码：327

外文期刊名：JOURNAL OF COLLOID AND INTERFACE SCIENCE

收录：;WOS:【SCI-EXPANDED(收录号:WOS:000766366500006)】；

基金：This work is supported by the Natural Science of Jiangsu Province (grant number), Natural Science of Higher Education in Jiangsu Province (grant number), and Natural Science of Nantong University for High-Level Talent (grant number). We also acknowledge financial support from National Natural Science of China (grant number,, and). Y.Y.Y. acknowledges the Southwest Minzu University Talent Supporting Funds (Grant No.).

语种：英文

外文关键词：Brunsted base; Bimetallic PdBi nanoplates; Interface modulation; Ethanol oxidation electrocatalysis; Catalyst durability

摘要：Palladium (Pd) is supposed to be one of the most promising catalytic metals towards ethanol (C2H5OH) oxidation reaction (EOR). However, Pd electrocatalysts easily suffer from the poisoning of the intermedi-ates (especially CO), resulting in the quick decay of EOR catalysis. Herein, inspired by the Brunsted-Lowry acid-base theory, a "attraction-repulsion" concept is proposed to guide the surface structure engineering toward EOR catalysts. Specifically, we induce Bi(OH)(3) species as Brunsted base onto PdBi nanoplates to effectively repel the adsorption of CO intermediates. The PdBi-Bi(OH)(3) nanoplates show an impressive mass activity of 4.46 A mgPd(-1) during the EOR catalysis and keep excellent stability. Both the stability and enhanced performance are attributed by the interfacial Brunsted base Bi(OH)(3) which can selectively attract and repel reactants and intermediates, as evidenced from in situ measurements and theoretical views. (C) 2021 Elsevier Inc. All rights reserved.