典型文献
Coupling of ultrasmall and small CoxP nanoparticles confined in porous SiO2 matrix for a robust oxygen evolution reaction
文献摘要：
Rational design of electrocatalysts is important for a sustainable oxygen evolution reaction(OER).It is still a huge challenge to engineer active sites in multi-sizes and multi-components simultaneously.Here,a series of CoxP nanoparticles(NPs)confined in an SiO2 matrix(SiO2/CoxP)is designed and synthesized as OER electrocatalysts.The phosphorization of the hydrolyzed Co-phyllosilicate promotes the formation of ultrasmall and small Co2P and CoP.These are firmly confined in the SiO2 matrix.The coupling of multi-size and multi-component CoxP catalysts can regulate reaction kinetics and electron transfer ability,enrich the active sites,and eventually promote the intrinsic OER activity.The SiO2 matrix provides abundant porous structure and oxygen vacancies,and these facilitate the exposure of active sites and improve conductivity.Because of the synergy and interplay of multi-sized/component CoxP NPs and the porous SiO2 matrix,the unique SiO2/CoxP heterostructure exhibits low overpotential(293 mV@10 mA cm-2),and robust stability(decay 12 mV after 5000 CV cycles,97.4％of initial current after 100 h chronoamperometric)for the OER process,exceeding many advanced metal phosphide electrocatalysts.This work provides a novel tactic to design low-cost,simple,and highly efficient OER electrocatalysts.
文献关键词：
中图分类号：
作者姓名：
Xiaojun Zeng;Haiqi Zhang;Xiaofeng Zhang;Qingqing Zhang;Yunxia Chen;Ronghai Yu;Martin Moskovits
作者机构：
School of Materials Science and Engineering,Jingdezhen Ceramic University,Jingdezhen,333403,China;Guangdong Academy of Science,Guangdong Institute of New Materials,National Engineering Laboratory for Modern Materials Surface Engineering Technology,The Key Lab of Guangdong for Modern Surface Engineering Technology,Guangzhou,510650,China;School of Materials Science and Engineering,Beihang University,Beijing,100191,China;Department of Chemistry and Biochemistry,University of California Santa Barbara,Santa Barbara,CA,93106,United States
文献出处：
引用格式：
[1]Xiaojun Zeng;Haiqi Zhang;Xiaofeng Zhang;Qingqing Zhang;Yunxia Chen;Ronghai Yu;Martin Moskovits-.Coupling of ultrasmall and small CoxP nanoparticles confined in porous SiO2 matrix for a robust oxygen evolution reaction)[J].纳米材料科学（英文版）,2022(04):393-399
A类：
CoxP,chronoamperometric
B类：
Coupling,ultrasmall,nanoparticles,confined,porous,SiO2,matrix,robust,oxygen,evolution,reaction,Rational,electrocatalysts,important,sustainable,OER,It,still,huge,challenge,engineer,active,sites,multi,sizes,components,simultaneously,Here,series,NPs,designed,synthesized,phosphorization,hydrolyzed,phyllosilicate,promotes,formation,Co2P,CoP,These,are,firmly,coupling,regulate,kinetics,electron,transfer,enrich,eventually,intrinsic,activity,provides,abundant,vacancies,these,facilitate,exposure,improve,conductivity,Because,synergy,interplay,unique,heterostructure,exhibits,low,overpotential,mV,mA,stability,decay,after,CV,cycles,initial,current,process,exceeding,many,advanced,metal,phosphide,This,work,novel,tactic,cost,simple,highly,efficient
AB值：
0.516507
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机标中图分类号，由域田数据科技根据网络公开资料自动分析生成，仅供学习研究参考。
