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Boosting Electrocatalytic Oxygen Evolution over Ce-Co9S8 Core-Shell Nanoneedle Arrays by Electronic and Architectural Dual Engineering

文献类型：期刊论文

作者Liu, Kun3; Zhu, Zhuoya3; Jiang, Mengqi3; Li, Liangcheng3; Ding, Linfei1; Li, Meng2,3; Sun, Dongmei3; Yang, Gaixiu4; Fu, Gengtao3; Tang, Yawen3
刊名CHEMISTRY-A EUROPEAN JOURNAL
出版日期2022-04-26
页码11
关键词cerium cobalt electronic structure nanoarrays nanoneedles water splitting oxygen evolution reaction
ISSN号0947-6539
DOI10.1002/chem.202200664
通讯作者Yang, Gaixiu(yanggx@ms.giec.ac.cn) ; Fu, Gengtao(gengtaofu@njnu.edu.cn) ; Tang, Yawen(tangyawen@njnu.edu.cn)
英文摘要An dual electronic and architectural engineering strategy is a good way to rationally design earth-abundant and highly efficient electrocatalysts of the oxygen evolution reaction (OER) for sustainable hydrogen-based energy devices. Here, a Ce-doped Co9S8 core-shell nanoneedle array (Ce-Co9S8@CC) supported on a carbon cloth has been designed and developed to accelerate the sluggish kinetics of the OER. Profiting from valance alternative Ce doping, a fine core-shell structure and vertically aligned nanoneedle arrayed architecture, Ce-Co9S8@CC integrates modulated electronic structure, highly exposed active sites, and multidimensional mass diffusion channels; together, these afford a favorable catalyzed OER. Ce-Co9S8@CC exhibits remarkable performance in the OER in an alkaline medium, where the overpotential requires only 242 mV to deliver a current density of 10 mA cm(-2) for the OER; this is 70 mV superior to that of Ce-free Co9S8 catalyst and other counterparts. Good stability and impressive selectivity (nearly 100 % Faradic efficiency) are also demonstrated. When integrated into a two-electrode OER//HER electrolyzer, the as-prepared Ce-Co9S8@CC displays a low operation potential of 1.54 V at 10 mA cm(-2) and long-term stability, thus demonstrating great potential for economical water electrolysis.
WOS关键词EFFICIENT ELECTROCATALYST ; HIGHLY EFFICIENT ; CARBON ; CEO2 ; NANOCOMPOSITE ; NANOPARTICLES ; REDUCTION ; OXIDE
资助项目National Natural Science Foundation of China[22109073] ; National Natural Science Foundation of China[22072067] ; National Natural Science Foundation of China[52176214] ; National and Local Joint Engineering Research Center of Biomedical Functional Materials ; Priority Academic Program Development of the Jiangsu Higher Education Institutions
WOS研究方向Chemistry
语种英语
WOS记录号WOS:000787182000001
出版者WILEY-V C H VERLAG GMBH
资助机构National Natural Science Foundation of China ; National and Local Joint Engineering Research Center of Biomedical Functional Materials ; Priority Academic Program Development of the Jiangsu Higher Education Institutions
源URL[http://ir.giec.ac.cn/handle/344007/36303]  
专题中国科学院广州能源研究所
通讯作者Yang, Gaixiu; Fu, Gengtao; Tang, Yawen
作者单位1.Nanjing Forestry Univ, Adv Anal & Testing Ctr, Nanjing 210037, Peoples R China
2.Southeast Univ, Sch Chem & Chem Engn, Nanjing 210037, Peoples R China
3.Nanjing Normal Univ, Jiangsu Key Lab New Power Batteries, Jiangsu Collaborat Innovat Ctr Biomed Funct Mat, Sch Chem & Mat Sci, Nanjing 210023, Peoples R China
4.Chinese Acad Sci, Guangzhou Inst Energy Convers, CAS Key Lab Renewable Energy, Guangdong Prov Key Lab New & Renewable Energy Res, Guangzhou 510640, Peoples R China
推荐引用方式
GB/T 7714		 Liu, Kun,Zhu, Zhuoya,Jiang, Mengqi,et al. Boosting Electrocatalytic Oxygen Evolution over Ce-Co9S8 Core-Shell Nanoneedle Arrays by Electronic and Architectural Dual Engineering[J]. CHEMISTRY-A EUROPEAN JOURNAL,2022:11.
APA Liu, Kun.,Zhu, Zhuoya.,Jiang, Mengqi.,Li, Liangcheng.,Ding, Linfei.,...&Tang, Yawen.(2022).Boosting Electrocatalytic Oxygen Evolution over Ce-Co9S8 Core-Shell Nanoneedle Arrays by Electronic and Architectural Dual Engineering.CHEMISTRY-A EUROPEAN JOURNAL,11.
MLA Liu, Kun,et al."Boosting Electrocatalytic Oxygen Evolution over Ce-Co9S8 Core-Shell Nanoneedle Arrays by Electronic and Architectural Dual Engineering".CHEMISTRY-A EUROPEAN JOURNAL (2022):11.

入库方式： OAI收割

来源：广州能源研究所

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