典型文献
Surface-mediated iron on porous cobalt oxide with high energy state for efficient water oxidation electrocatalysis
文献摘要：
Surface engineering of active materials to generate desired energy state is critical to fabricate high-performance heterogeneous catalysts.However,its realization in a controllable level remains challenging.Using oxygen evolution reaction(OER)as a model reaction,we report a surface-mediated Fe deposition strategy to electronically tailor surface energy states of porous Co304(Fe-pCo3O4)for enhanced activity towards OER.The Fe-pCo3O4 exhibits a low overpotential of 280 mV to reach an OER current density of 100 mA cm-2,and a fast-kinetic behavior with a low Tafel slop of 58.2 mV dec-1,outperforming Co304-based OER catalysts recently reported and also the noble IrO2.The engineered material retains 100％of its original activity after operating at an overpotential of 350 mV for 100 h.A combination of theoretical calculations and experimental results finds out that the surface doped Fe promotes a high energy state and desired coordination environment in the near surface region,which enables optimized OER intermediates binding and favorably changes the rate-determining step.
文献关键词：
中图分类号：
作者姓名：
Jingsha Li;Tao Hu;Changhong Wang;Chunxian Guo
作者机构：
Institute of Materials Science and Devices,Suzhou University of Science and Technology,Suzhou,215011,China
文献出处：
引用格式：
[1]Jingsha Li;Tao Hu;Changhong Wang;Chunxian Guo-.Surface-mediated iron on porous cobalt oxide with high energy state for efficient water oxidation electrocatalysis)[J].绿色能源与环境（英文）,2022(04):662-671
A类：
pCo3O4
B类：
Surface,mediated,porous,cobalt,oxide,high,energy,efficient,water,oxidation,electrocatalysis,engineering,active,materials,generate,desired,critical,fabricate,performance,heterogeneous,catalysts,However,realization,controllable,level,remains,challenging,Using,oxygen,evolution,reaction,OER,model,surface,deposition,strategy,electronically,tailor,states,Co304,enhanced,activity,towards,exhibits,low,overpotential,mV,reach,current,density,mA,fast,kinetic,behavior,Tafel,slop,dec,outperforming,recently,reported,also,noble,IrO2,engineered,retains,original,after,operating,combination,theoretical,calculations,experimental,results,finds,that,doped,promotes,coordination,environment,near,region,which,enables,optimized,intermediates,binding,favorably,changes,determining,step
AB值：
0.61921
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