Monodispersed ultrathin twisty PdBi alloys nanowires assemblies with tensile strain enhance C_(2+)alcohols electrooxidation  

作　　者：Xianzhuo Lao Ze Li Likang Yang Ben Zhang Wanneng Ye Aiping Fu Peizhi Guo 

机构地区：[1]Institute of Materials for Energy and Environment,State Key Laboratory of Bio-fibers and Eco-textiles,College of Materials Science and Engineering,Qingdao University,Qingdao 266071,Shandong,China [2]College of Physics,State Key Laboratory of Bio-Fibers and Eco-Textiles,Center for Marine Observation and Communications,Qingdao University,Qingdao 266071,Shandong,China [3]College of Chemistry and Chemical Engineering,Qingdao University,Qingdao 266071,Shandong,China

出　　处：《Journal of Energy Chemistry》2023年第4期279-290,共12页能源化学（英文版）

基　　金：supported by the National Natural Science Foundation of China(22172084 and 21773133);the World-Class Discipline Program of Shandong Province,China。

摘　　要：Direct alcohol fuel cells(DAFCs)are powered by the alcohol electro-oxidation reaction(AOR),where an electrocatalyst with an optimal electronic structure can accelerate the sluggish AOR.Interestingly,strain engineering in hetero-catalysis offers a promising route to boost their catalytic activity.Herein,we report on a class of monodispersed ultrathin twisty PdBi alloy nanowires(TNWs)assemblies with face-centered structures that drive AORs.These thin nanowire structures expose a large number of reactive sites.Strikingly,Pd_(6)Bi_(1)TNWs show an excellent current density of 2066,3047,and 1231 mA mg_(Pd)^(-1)for oxidation of ethanol,ethylene glycol,and glycerol,respectively.The“volcano-like”behaviors observed on PdBi TNWs for AORs indicate that the maximum catalytic mass activity is a well balance between active intermediates and blocking species at the interface.This study offers an effective and universal method to build novel nanocatalysts in various applications by rationally designing highly efficient catalysts with specific strain.

关 键 词：PdBi NANOWIRES Strain engineering Ligand exchange Synergetic effect Fuel cells 

分 类 号：O643.36[理学—物理化学] TM911.4[理学—化学]