PtNiCu nanowires with advantageous lattice-plane boundary for enhanced ethanol electrooxidation
作者机构：State Key Laboratory of Heavy Oil ProcessingCollege of Chemical Engineering and EnvironmentChina University of PetroleumBeijing 102249China Department of ChemistryTsinghua UniversityBeijing 100084China Jiangsu Key Laboratory of Vehicle Emissions ControlSchool of the EnvironmentCenter of Modern AnalysisKey Laboratory of Mesoscopic Chemistry of Ministry of Education of ChinaSchool of Chemistry and Chemical EngineeringNanjing UniversityNanjing 210093China
出 版 物：《Nano Research》 (纳米研究（英文版）)
年 卷 期：2022年第15卷第4期
页 面：2877-2886页
核心收录：
学科分类：081704[工学-应用化学] 07[理学] 070205[理学-凝聚态物理] 070304[理学-物理化学(含∶化学物理)] 08[工学] 0817[工学-化学工程与技术] 080501[工学-材料物理与化学] 0805[工学-材料科学与工程（可授工学、理学学位）] 0703[理学-化学] 0702[理学-物理学]
基 金：The authors acknowledge the financial supports from the National Natural Science Foundation of China(No.21573286) the Key Scientific and Technological Innovation Project in Shandong Province(No.2019JZZY010343)
主 题：chemical etching crystal-facet engineering synergistic effect ethanol electrooxidation CO resistibility
摘 要：It is generally accepted that the interface effect and surface electronic structure of catalysts have vital impact on catalytic *** and tailoring the atomic arrangement of interface structure are of great importance for ***,we proposed a simple method to synthesize etching-PtNiCu nanowires(e-PtNiCu NWs)enclosed by both(110)and(100)facets evolving from PtNiCu nanowires(PtNiCu NWs)mainly with(111)facets by selectively etching *** acetic acid etching treatment,the e-PtNiCu NWs possess high total proportions(88.3%)of(110)and(100)facets,whereas the(111)facet is dominant in PtNiCu NWs(64%)by qualitatively and quantitatively *** the structure characterizations and performance tests of ethanol electrooxidation reaction(EOR),we find that the e-PtNiCu NWs display remarkably performance for EOR,which is nearly 4.5 times and 1.5 times enhancement compared with the state-of-the-art Pt/C catalyst,as well as 2.2 and 1.4 times of PtNiCu NWs,in specific activity and mass activity,*** improved performance of e-PtNiCu NWs is attributed to synergistic catalytic effect between(110)and(100)facets that not only significantly decreases the onset potentials of adsorbed CO(CO_(ads))but also favors the oxidation of CO_(ads)on the surface of ***,thermodynamics and kinetic studies indicate that the synergistic effect of both(110)and(100)facets in e-PtNiCu NWs can decrease the activation energy barrier and facilitate the charge transfer during the *** work provides a promising approach to construct catalysts with tunable surface electronic structure towards efficient electrocatalysis.
维普期刊数据库