首站-论文投稿智能助手
典型文献
Interface Engineering of NixSy@MnOxHy Nanorods to Efficiently Enhance Overall-Water-Splitting Activity and Stability
文献摘要:
Exploring highly active and stable transition metal-based bifunctional electrocatalysts has recently attracted extensive research interests for achieving high inherent activity,abundant exposed active sites,rapid mass transfer,and strong structure stability for overall water splitting.Herein,an interface engineering coupled with shell-protection strategy was applied to construct three-dimen-sional(3D)core-shell NixSy@MnOxHy het-erostructure nanorods grown on nickel foam(NixSv@MnOxHv/NF)as a bifunctional elec-trocatalyst.NixSy@MnOxHy/NF was synthesized via a facile hydrothermal reaction followed by an electrodeposition process.The X-ray absorption fine structure spectra reveal that abundant Mn-S bonds connect the hetero structure interfaces of NixSy@MnOxHy,leading to a strong electronic interaction,which improves the intrinsic activities of hydrogen evolution reaction and oxygen evolution reaction(OER).Besides,as an efficient protective shell,the MnOxHy dramatically inhibits the electrochemical corrosion of the electrocatalyst at high cur-rent densities,which remarkably enhances the stability at high potentials.Furthermore,the 3D nanorod structure not only exposes enriched active sites,but also accelerates the electrolyte diffusion and bubble desorption.Therefore,NixSy@MnOxHy/NF exhibits exceptional bifunctional activity and stability for overall water splitting,with low overpotentials of 326 and 356 mV for OER at 100 and 500 mA cm-2,respectively,along with high stability of 150 h at 100 mA cm-2.Furthermore,for overall water splitting,it presents a low cell voltage of 1.529 V at 10 mA cm-2,accompanied by excellent stability at 100 mA cm-2 for 100 h.This work sheds a light on exploring highly active and stable bifunctional electrocatalysts by the interface engineering coupled with shell-protection strategy.
文献关键词:
作者姓名:
Pan Wang;Yuanzhi Luo;Gaixia Zhang;Zhangsen Chen;Hariprasad Ranganathan;Shuhui Sun;Zhicong Shi
作者机构:
Institute of Batteries,School of Materials and Energy,Guangdong University of Technology,Guangzhou 510006,People's Republic of China;énergie Matériaux Télécommunications Research Centre,Institut National de La Recherche Scientifique(INRS),Varennes,Québec J3X 1P7,Canada;The Key Laboratory of Fuel Cell Technology of Guangdong Province,School of Chemistry and Chemical Engineering,South China University of Technology,Guangzhou 510641,People's Republic of China
引用格式:
[1]Pan Wang;Yuanzhi Luo;Gaixia Zhang;Zhangsen Chen;Hariprasad Ranganathan;Shuhui Sun;Zhicong Shi-.Interface Engineering of NixSy@MnOxHy Nanorods to Efficiently Enhance Overall-Water-Splitting Activity and Stability)[J].纳微快报(英文),2022(07):246-262
A类:
MnOxHy,NixSv,MnOxHv
B类:
Interface,Engineering,NixSy,Nanorods,Efficiently,Enhance,Overall,Water,Splitting,Activity,Stability,Exploring,highly,active,stable,transition,metal,bifunctional,electrocatalysts,has,recently,attracted,extensive,research,interests,achieving,inherent,activity,abundant,exposed,sites,rapid,mass,transfer,strong,stability,overall,water,splitting,Herein,engineering,coupled,shell,protection,strategy,was,applied,construct,three,dimen,sional,core,erostructure,nanorods,grown,nickel,foam,synthesized,via,facile,hydrothermal,reaction,followed,by,electrodeposition,process,ray,absorption,fine,spectra,reveal,that,bonds,connect,hetero,interfaces,leading,electronic,interaction,which,improves,intrinsic,activities,hydrogen,evolution,oxygen,OER,Besides,efficient,protective,dramatically,inhibits,electrochemical,corrosion,cur,densities,remarkably,enhances,Furthermore,not,only,exposes,enriched,but,also,accelerates,electrolyte,diffusion,bubble,desorption,Therefore,exhibits,exceptional,overpotentials,mV,mA,respectively,along,presents,voltage,accompanied,excellent,This,work,sheds,light,exploring
AB值:
0.538015
相似文献
Ultrathin Metal Silicate Hydroxide Nanosheets with Moderate Metal-Oxygen Covalency Enables Efficient Oxygen Evolution
Jiexin Zhu;Shikun Li;Zechao Zhuang;Shan Gao;Xufeng Hong;Xuelei Pan;Ruohan Yu;Liang Zhou;Lyudmila V.Moskaleva;Liqiang Mai-State Key Laboratory of Advanced Technology for Materials Synthesis and Processing,Wuhan University of Technology,Wuhan Hubei 430070,China;Institute of Applied and Physical Chemistry and Center for Environmental Research and Sustainable Technology,University of Bremen,Bremen 28359,Germany;Department of Chemistry,University of the Free State,PO Box 339,Bloemfontein 9300,South Africa;Collage of Chemistry&Chemical Engineering,Anhui University,Anhui 230000,China;Foshan Xianhu Laboratory of the Advanced Energy Science and Technology Guangdong Laboratory,Xianhu Hydrogen Valley,Foshan Guangdong 528200,China
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。