典型文献
Dynamic active sites on plasma engraved Ni hydroxide for enhanced electro-catalytic urea oxidation
文献摘要：
The urea oxidization reaction(UOR)is an important anodic reaction in electro-catalytic energy conver-sion.However,the sluggish reaction kinetics and complex catalyst transformation in electrocatalysis require activity improvement and better mechanistic understanding of the state-of-the-art Ni(OH)2 cat-alyst.Herein,by utilizing low-temperature argon(Ar)plasma processing,tooth-wheel Ni(OH)2 nanosheets self-supported on Ni foam(Ni(OH)2-Ar)are demonstrated to have improved UOR activity compared to conventional Ni(OH)2.The theoretical assessment confirms that the edge has a smaller cation vacancy formation energy than the basal plane,consequently explaining the structural formation.Operando and quasi-operando methods are employed to investigate the dynamic evolution of the Ni(OH)2 film in UOR.The crucial dehydrogenation products of Ni(OH)sO-intermediates are identified to be stable on the etched edge and explain the enhanced UOR in the low potential region.In addition,the dynamic active sites are monitored to elucidate the reaction mechanism in different potential ranges.
文献关键词：
中图分类号：
作者姓名：
Dan Li;Yuefeng Zhang;Xiaomin Zhou;Chao Huang;Ying Wen;Liangliang Liu;Qingwei Li;Yue Xu;Yuzheng Wu;Qingdong Ruan;Yinghe Ma;Fangyu Xiong;Dezhi Xiao;Pei Liu;Guomin Wang;Babak Mehrjou;Bin Wang;Hao Li;Rongsheng Chen;Hongwei Ni;Zhiyuan Zeng;Paul K.Chu
作者机构：
Department of Physics,Department of Materials Science and Engineering,and Department of Biomedical Engineering,City University of Hong Kong,Tat Chee Avenue,Kowloon 999077,Hong Kong,China;The State Key Laboratory of Refractories and Metallurgy,Wuhan University of Science and Technology,Wuhan 430081,Hubei,China;Catalysis Theory Center,Department of Physics,Technical University of Denmark,2800 Kongens Lyngby,Denmark
文献出处：
引用格式：
[1]Dan Li;Yuefeng Zhang;Xiaomin Zhou;Chao Huang;Ying Wen;Liangliang Liu;Qingwei Li;Yue Xu;Yuzheng Wu;Qingdong Ruan;Yinghe Ma;Fangyu Xiong;Dezhi Xiao;Pei Liu;Guomin Wang;Babak Mehrjou;Bin Wang;Hao Li;Rongsheng Chen;Hongwei Ni;Zhiyuan Zeng;Paul K.Chu-.Dynamic active sites on plasma engraved Ni hydroxide for enhanced electro-catalytic urea oxidation)[J].能源化学,2022(08):150-158
A类：
sO
B类：
Dynamic,active,sites,plasma,engraved,hydroxide,enhanced,catalytic,urea,oxidation,oxidization,reaction,UOR,important,anodic,energy,conver,sion,However,sluggish,kinetics,complex,catalyst,transformation,electrocatalysis,require,activity,improvement,better,mechanistic,understanding,state,art,Herein,by,utilizing,low,temperature,argon,Ar,processing,tooth,wheel,nanosheets,self,supported,foam,demonstrated,have,improved,compared,conventional,theoretical,assessment,confirms,that,edge,has,smaller,cation,vacancy,than,basal,plane,consequently,explaining,structural,Operando,quasi,operando,methods,employed,investigate,dynamic,evolution,film,crucial,dehydrogenation,products,intermediates,identified,stable,etched,potential,region,In,addition,monitored,elucidate,mechanism,different,ranges
AB值：
0.614872
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