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Highly Efficient Electroreduction of CO2 on Nickel Single-Atom Catalysts: Atom Trapping and Nitrogen Anchoring

文献类型：期刊论文

作者Mou, Kaiwen6,7,8; Chen, Zhipeng6,7,8; Zhang, Xinxin6,7,8; Jiao, Mingyang6,7; Zhang, Xiangping1,9,10; Ge, Xin2,3,5; Zhang, Wei2,3,4,5; Liu, Licheng6,7
刊名SMALL
出版日期2019-10-24
页码8
关键词carbon dioxide electrocatalysis Faradaic efficiency single atom sites
ISSN号1613-6810
DOI10.1002/smll.201903668
英文摘要Construction of single atom catalysts (SACs) with high activity toward electroreduction of CO2 still remains a great challenge. A very simple and truly cost-effective synthetic strategy is proposed to prepare SACs via a impregnation-pyrolysis method, through one-step pyrolysis of graphene oxide aerogel. Compared with other traditional methods, this process is fast and free of repeated acid etching, and thus it has great potential for facile operation and large-scale manufacturing. Both X-ray absorption fine structure and high-angle annular dark-field scanning transmission electron microscopy images confirm the presence of isolated nickel atoms, with a high Ni loading of approximate to 2.6 wt%. The obtained 3D porous Ni- and N-codoped graphene aerogel exhibits excellent activity toward electroreduction of CO2 to CO, in particular exhibiting a remarkable CO Faradaic efficiency of 90.2%. Density functional theory calculations reveal that free energies for the formation of intermediate *COOH on coordinatively unsaturated Ni-N sites are significantly lower than that on Ni-N-4 site, suggesting the outstanding activities of CO2 electroreduction originate from coordinatively unsaturated Ni-N sites in catalysts.
WOS关键词SELECTIVE ELECTROCHEMICAL REDUCTION ; CARBON-DIOXIDE ; GRAPHENE ; FORMATE ; SITES ; CONVERSION
资助项目National Natural Science Foundation of China[21676288] ; National Natural Science Foundation of China[51872115] ; Dalian National Laboratory for Clean Energy (DNL) Cooperation Fund, CAS[DNL 180406] ; Dalian National Laboratory for Clean Energy (DNL) Cooperation Fund, QIBEBT[QIBEBT ZZBS 201805] ; Open Project Program of Wuhan National Laboratory for Optoelectronics[2018WNLOKF022]
WOS研究方向Chemistry ; Science & Technology - Other Topics ; Materials Science ; Physics
语种英语
WOS记录号WOS:000492086800001
出版者WILEY-V C H VERLAG GMBH
资助机构National Natural Science Foundation of China ; Dalian National Laboratory for Clean Energy (DNL) Cooperation Fund, CAS ; Dalian National Laboratory for Clean Energy (DNL) Cooperation Fund, QIBEBT ; Open Project Program of Wuhan National Laboratory for Optoelectronics
源URL[http://ir.ipe.ac.cn/handle/122111/39136]  
专题中国科学院过程工程研究所
通讯作者Zhang, Wei; Liu, Licheng
作者单位1.Dalian Natl Lab Clean Energy, Dalian 116023, Peoples R China
2.Jilin Univ, Dept Mat Sci, Changchun 130012, Jilin, Peoples R China
3.Jilin Univ, Electron Microscopy Ctr, Changchun 130012, Jilin, Peoples R China
4.Huazhong Univ Sci & Technol, Wuhan Natl Lab Optoelect, Wuhan 430074, Hubei, Peoples R China
5.Jilin Univ, Key Lab Mobile Mat MOE, Changchun 130012, Jilin, Peoples R China
6.Chinese Acad Sci, CAS Key Lab Biobased Mat, Qingdao 266101, Shandong, Peoples R China
7.Chinese Acad Sci, Qingdao Inst Bioenergy & Bioproc Technol, Qingdao 266101, Shandong, Peoples R China
8.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
9.Chinese Acad Sci, CAS Key Lab Green Proc & Engn, Beijing 100190, Peoples R China
10.Chinese Acad Sci, Inst Proc Engn, Beijing 100190, Peoples R China
推荐引用方式
GB/T 7714		 Mou, Kaiwen,Chen, Zhipeng,Zhang, Xinxin,et al. Highly Efficient Electroreduction of CO2 on Nickel Single-Atom Catalysts: Atom Trapping and Nitrogen Anchoring[J]. SMALL,2019:8.
APA Mou, Kaiwen.,Chen, Zhipeng.,Zhang, Xinxin.,Jiao, Mingyang.,Zhang, Xiangping.,...&Liu, Licheng.(2019).Highly Efficient Electroreduction of CO2 on Nickel Single-Atom Catalysts: Atom Trapping and Nitrogen Anchoring.SMALL,8.
MLA Mou, Kaiwen,et al."Highly Efficient Electroreduction of CO2 on Nickel Single-Atom Catalysts: Atom Trapping and Nitrogen Anchoring".SMALL (2019):8.

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来源：过程工程研究所

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