典型文献
Synergistic electronic interaction between ruthenium and nickel-iron hydroxide for enhanced oxygen evolution reaction
文献摘要:
The efficiency of electrochemical water split-ting is extremely hampered by the sluggish oxygen evo-lution reaction(OER)occurred at the anode.Therefore,developing high-performance OER electrocatalysts is cru-cial for realizing the industrialized application of water splitting.Herein,a high-efficiency electrocatalyst of ruthenium-decorated nickel-iron hydroxide(10Ru-NiFe LDH)supported on Ni foam is successfully synthesized for OER.Modifying NiFe LDH with ruthenium can optimize the electronic density to form high valences of metal sites,which is beneficial to promote its OER performance.Consequently,the 10Ru-NiFe LDH only needs a low overpotential of 222 mV to achieve a current density of 50 mA·cm-2,which exhibits fast OER kinetics with a small Tafel slope of 58 mV·dec-1.Moreover,this elec-trocatalyst shows high stability over 20 h at a high current density of 100 mA·cm-2 without obvious decay.The decent OER performances can be ascribed to the increased active sites and the synergistic electronic interactions among Ni,Fe and Ru.This work provides an effective approach for designing desirable electrocatalysts for OER.
文献关键词:
中图分类号:
作者姓名:
Hao Cui;Han-Xiao Liao;Zhi-Lu Wang;Jian-Ping Xie;Peng-Fei Tan;De-Wei Chu;Pan Jun
作者机构:
State Key Laboratory of Powder Metallurgy,Central South University,Changsha 410083,China;School of Minerals Processing and Bioengineering,Central South University,Changsha 410083,China;School of Materials Science and Engineering,University of New South Wales,Sydney 2052,Australia
文献出处:
引用格式:
[1]Hao Cui;Han-Xiao Liao;Zhi-Lu Wang;Jian-Ping Xie;Peng-Fei Tan;De-Wei Chu;Pan Jun-.Synergistic electronic interaction between ruthenium and nickel-iron hydroxide for enhanced oxygen evolution reaction)[J].稀有金属(英文版),2022(08):2606-2615
A类:
10Ru,valences
B类:
Synergistic,electronic,between,ruthenium,nickel,iron,hydroxide,enhanced,oxygen,evolution,reaction,efficiency,electrochemical,water,extremely,hampered,by,sluggish,OER,occurred,anode,Therefore,developing,high,electrocatalysts,cru,realizing,industrialized,application,splitting,Herein,decorated,NiFe,LDH,supported,foam,successfully,synthesized,Modifying,can,optimize,density,metal,sites,which,beneficial,promote,Consequently,only,needs,low,overpotential,mV,achieve,current,mA,exhibits,fast,kinetics,small,Tafel,slope,Moreover,this,shows,stability,without,obvious,decay,decent,performances,ascribed,increased,active,synergistic,interactions,among,This,work,provides,effective,approach,designing,desirable
AB值:
0.519006
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