典型文献
Surface facets dependent oxygen evolution reaction of single Cu2O nanoparticles
文献摘要：
Understanding and establishing the structure-activity relation of nanoparticles is a prerequisite for ra-tional design of high-performance electrocatalysts.Cu2O nanoparticles enclosed with different crystal facets,namely,o-Cu2O NPs with{111}facets,c-Cu2O NPs with{100}facets are prepared and their elec-trocatalytic properties for oxygen evolution reaction(OER)in alkaline condition are evaluated at single nanoparticle level with a combination of scanning electrochemical cell microscopy and scanning electron microscopy.It is found that the o-Cu2O NPs have significantly superior OER electrocatalytic activity com-pared to c-Cu2O,which is almost inert.The estimated turnover frequency(TOF)at 1.97 V vs.RHE on{111}facet increases from 4 s-1 to 115 s-1 with the octahedron edge length decreasing from 1.3 pm to 100 nm.Deposition of carbon on c-Cu2O surface barely promotes the activity,suggesting the inherent poor electric conductivity within the nanocrystal is most likely the reason for low activity.This work provides direct probing to single transition metal oxide crystals with dramatically different activity.
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作者姓名：
Yun Shan;Xiaoli Deng;Xiaoxi Lu;Cong Gao;Yingjian Li;Qianjin Chen
作者机构：
State Key Laboratory for Modification of Chemical Fibers and Polymer Materials,College of Chemistry,Chemical Engineering and Biotechnology,Donghua University,Shanghai 201620,China
文献出处：
引用格式：
[1]Yun Shan;Xiaoli Deng;Xiaoxi Lu;Cong Gao;Yingjian Li;Qianjin Chen-.Surface facets dependent oxygen evolution reaction of single Cu2O nanoparticles)[J].中国化学快报（英文版）,2022(12):5158-5161
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0.578188
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