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Toward an Understanding of the Reversible Li-CO2 Batteries over Metal-N-4-Functionalized Graphene Electrocatalysts

文献类型：期刊论文

作者Liu, Yingqi5,6; Zhao, Shiyong3,4; Wang, Dashuai5,6; Chen, Biao5,6; Zhang, Zhiyuan5,6; Sheng, Jinzhi5,6; Zhong, Xiongwei5,6; Zou, Xiaolong5,6; Jiang, San Ping3,4; Zhou, Guangmin5,6
刊名ACS NANO
出版日期2021-12-17
页码10
ISSN号1936-0851
关键词graphene single atom catalyst metal-N-4 moieties catalyst Li-CO2 batteries
DOI10.1021/acsnano.1c10007
通讯作者Jiang, San Ping(s.jiang@curtin.edu.au) ; Zhou, Guangmin(guangminzhou@sz.tsinghua.edu.cn) ; Cheng, Hui-Ming(hm.cheng@siat.ac.cn)
英文摘要The lack of low-cost catalysts with high activity leads to the unsatisfactory electrochemical performance of Li-CO2 batteries. Single-atom catalysts (SACs) with metal-N-x moieties have great potential to improve battery reaction kinetics and cycling ability. However, how to rationally select and develop highly efficient electrocatalysts remains unclear. Herein, we used density functional theory (DFT) calculations to screen SACs on N-doped graphene (SAMe@NG, Me = Cr, Mn, Fe, Co, Ni, Cu) for CO2 reduction and evolution reaction. Among them, SACr@NG shows the promising potential as an effective electrocatalyst for the reversible Li-CO2 batteries. To verify the validity of the DFT calculations, a two-step method has been developed to fabricate SAMe@NG on a porous carbon foam (SAMe@NG/PCF) with similar loading of similar to 8 wt %. Consistent with the theoretical calculations, batteries with the SACr@NG/PCF cathodes a superior rate performance and cycling ability, with a long cycle life and a narrow voltage gap of 1.39 V over 350 cycles at a rate of 100 mu A cm(-2). This work not only demonstrates a principle for catalysts selection for the reversible Li-CO2 batteries but also a controllable synthesis method for single atom catalysts.
资助项目National Natural Science Foundation of China[52072205] ; Tsinghua Shenzhen International Graduate School ; Overseas Research Cooperation Fund of Tsinghua Shenzhen International Graduate School ; China Postdoctoral Science Foundation[2020TQ0159]
WOS研究方向Chemistry ; Science & Technology - Other Topics ; Materials Science
语种英语
出版者AMER CHEMICAL SOC
WOS记录号WOS:000734062500001
资助机构National Natural Science Foundation of China ; Tsinghua Shenzhen International Graduate School ; Overseas Research Cooperation Fund of Tsinghua Shenzhen International Graduate School ; China Postdoctoral Science Foundation
源URL[http://ir.imr.ac.cn/handle/321006/167262]  
专题金属研究所_中国科学院金属研究所
通讯作者Jiang, San Ping; Zhou, Guangmin; Cheng, Hui-Ming
作者单位1.Chinese Acad Sci, Inst Met Res, Shenyang Natl Lab Mat Sci, Shenyang 110016, Peoples R China
2.Chinese Acad Sci, Shenzhen Inst Adv Technol, Shenzhen 518055, Peoples R China
3.Curtin Univ, WA Sch Mines Minerals Energy & Chem Engn, Perth, WA 6102, Australia
4.Curtin Univ, Fuels & Energy Technol Inst, Perth, WA 6102, Australia
5.Tsinghua Univ, Tsinghua Shenzhen Int Grad Sch, Shenzhen 518055, Peoples R China
6.Tsinghua Univ, Shenzhen Geim Graphene Ctr, Tsinghua Berkeley Shenzhen Inst, Shenzhen 518055, Peoples R China
推荐引用方式
GB/T 7714		 Liu, Yingqi,Zhao, Shiyong,Wang, Dashuai,et al. Toward an Understanding of the Reversible Li-CO2 Batteries over Metal-N-4-Functionalized Graphene Electrocatalysts[J]. ACS NANO,2021:10.
APA Liu, Yingqi.,Zhao, Shiyong.,Wang, Dashuai.,Chen, Biao.,Zhang, Zhiyuan.,...&Cheng, Hui-Ming.(2021).Toward an Understanding of the Reversible Li-CO2 Batteries over Metal-N-4-Functionalized Graphene Electrocatalysts.ACS NANO,10.
MLA Liu, Yingqi,et al."Toward an Understanding of the Reversible Li-CO2 Batteries over Metal-N-4-Functionalized Graphene Electrocatalysts".ACS NANO (2021):10.

入库方式： OAI收割

来源：金属研究所

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