Breaking Ordered Atomic Arrangement into Disordered Amorphous Structure for High Electrocatalytic Performance  

作　　者：Baoshun Zhang Yifu Yu 

机构地区：[1]Tianjin University-Asia Silicon Joint Research Center of Ammonia-Hydrogen New Energy,Asia Silicon(Qinghai)Co.,Ltd,Xining810007,China [2]Institute of Molecular Plus,Tianjin University,Tianjin300072,China

出　　处：《Transactions of Tianjin University》2025年第1期1-3,共3页天津大学学报(英文版)

摘　　要：Noble metal-based intermetallic compounds(IMCs)with ordered atomic arrangements exhibit remarkable electrocatalytic activity owing to their unique crystal and electronic structures.During the past years,great advance has been made in the development of noble metal-based IMCs.Recently,Lu and coworkers reported ultrathin“amorphous/intermetallic”(A/IMC)heterophase PtPbBi nanosheets(NSs)with a thickness of 2.5±0.3 nm.The oxidative etching effect caused by the coexistence of O_(2)and Br^(-)ions plays a crucial role in the formation of the IMC and unique two-dimensional structure with irregular shapes and curled edges.This study shows that fabricating an A/IMC heterophase structure with a multimetallic composition can effectively enhance the catalytic performances of noble metal-based electrocatalysts.

关 键 词：Amorphous structure ELECTROCATALYTIC PtPbBi nanosheets 

分 类 号：TG1[金属学及工艺—金属学]