Boosting Alcohol Oxidation Electrocatalysis with Multifactorial Engineered Pd1/Pt Single‑Atom Alloy‑BiO_(x)Adatoms Surface  

作　　者：Yujia Liao Wen Chen Yutian Ding Lei Xie Qi Yang Qilong Wu Xianglong Liu Jinliang Zhu Renfei Feng Xian‑Zhu Fu Shuiping Luo Jing‑Li Luo 

机构地区：[1]Shenzhen Key Laboratory of Energy Electrocatalytic Materials,Guangdong Provincial Key Laboratory of New Energy Materials Service Safety,College of Materials Science and Engineering,Shenzhen University,Shenzhen 518055,People’s Republic of China [2]Department of Chemistry,City University of Hong Kong,Kowloon 999077,People’s Republic of China [3]Department of Chemistry,Southern University of Science and Technology(SUSTech),Shenzhen 518055,People’s Republic of China [4]School of Resources,Environment and Materials,MOE Key Laboratory of New Processing Technology for Nonferrous Metals and Materials,Guangxi University,Nanning 530004,People’s Republic of China [5]Canadian Light Source Inc.,44 Innovation Blvd.,Saskatoon,SK S7N 0×4,Canada

出　　处：《Nano-Micro Letters》2025年第7期396-409,共14页纳微快报(英文版)

基　　金：supported by the National Natural Science Foundation of China(NSFC)(Grant Nos.22475132 and 52101259);the Shenzhen Science and Technology Innovation Committee(Grant No.JCYJ20210324105008022);financially supported by the Shenzhen Science and Technology Innovation Program(Nos.KQTD20190929173914967 and ZDSYS20220527171401003).

摘　　要：Engineering nanomaterials at single-atomic sites could enable unprecedented catalytic properties for broad applications,yet it remains challenging to do so on the surface of multimetallic nanocrystals.Herein,we present the multifactorial engineering(size,shape,phase,and composition)of the fully ordered PtBi nanoplates at atomic level,achieving a unique catalyst surface where the face-centered cubic(fcc)Pt edges are modified by the isolated Pd atoms and BiO_(x)adatoms.This Pd_(1)/Pt-BiO_(x)electrocatalyst exhibits an ultrahigh mass activity of 16.01 A mg^(-1)Pt+Pd toward ethanol oxidation in alkaline electrolyte and enables a direct ethanol fuel cell of peak power density of 56.7 mW cm^(−2).The surrounding BiO_(x)adatoms are critical for mitigating CO-poisoning on the Pt surface,and the Pd_(1)/Pt single-atom alloy further facilitates the electrooxidation of CH_(3)CH_(2)OH.This work offers new insights into the rational design and construction of sophisticated catalyst surface at single-atomic sites for highly efficient electrocatalysis.

关 键 词：ELECTROCATALYSIS Alcohol oxidation Single-atom alloy INTERMETALLIC Fuel cell 

分 类 号：O643.36[理学—物理化学]