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Breaking the Stable Triangle of Carbonate via W-O Bonds for Li-CO2 Batteries with Low Polarization

文献类型：期刊论文

作者Zhang, Xuejing1,2; Wang, Tianshuai3; Yang, Yijun4; Zhang, Xin3; Lu, Zongjing1,2; Wang, Jingnan3; Sun, Chao3; Diao, Yanyan5; Wang, Xi4; Yao, Jiannian1,2,6
刊名ACS ENERGY LETTERS
出版日期2021-10-08
卷号6期号:10页码:3503-3510
ISSN号2380-8195
DOI10.1021/acsenergylett.1c01428
英文摘要Li-CO2 batteries are widely studied as a promising technology for greenhouse-gas CO2 fixation as well as for energy conversion and storage devices. Their further development, however, is hindered by the refractory discharge products, leading to large polarization voltage and low round-trip efficiency. Here, W2C nanoparticles embedded in the walls of carbon nanotubes (W2C-CNTs) are prepared successfully. An efficient Li-CO2 battery with a W2C-CNTs cathode displays ultralow charge voltage (3.2 V) and high round-trip efficiency (90.1%). The low polarization comes from electron-rich W atoms that break the stable triangle of CO32- via W-O bonds. The resulting amorphous discharge products could be readily and reversibly decomposed during charging. Raman and XAS spectra provide direct and solid evidence for the W-O bonds. Also, DFT calculations show there is electron transfer between the W2C surface and Li2CO3, resulting in a low decomposition barrier for Li2CO3 on the W2C substrate.
WOS关键词GRAPHENE ; NANOPARTICLES ; CATHODE ; ELECTROCATALYSTS ; SPECTRA ; SURFACE
资助项目Fundamental Research Funds for the Central Universities[2021RC246] ; Fundamental Research Funds for the Central Universities[2019RC021] ; National Natural Science Foundation of China[91961125] ; National Natural Science Foundation of China[51802013] ; National Natural Science Foundation of China[21905019] ; "Key Program for International S&T Cooperation Projects of China" from the Ministry of Science and Technology of China[2018YFE 0124600] ; Chemistry and Chemical Engineering Guangdong Laboratory[1932001] ; Chemistry and Chemical Engineering Guangdong Laboratory[1932004] ; Science and Technology Project of Guangdong Province[2020B01 01370001] ; China Petrochemical Corporation[S20L00151]
WOS研究方向Chemistry ; Electrochemistry ; Energy & Fuels ; Science & Technology - Other Topics ; Materials Science
语种英语
出版者AMER CHEMICAL SOC
WOS记录号WOS:000707987500015
资助机构Fundamental Research Funds for the Central Universities ; National Natural Science Foundation of China ; "Key Program for International S&T Cooperation Projects of China" from the Ministry of Science and Technology of China ; Chemistry and Chemical Engineering Guangdong Laboratory ; Science and Technology Project of Guangdong Province ; China Petrochemical Corporation
源URL[http://ir.ipe.ac.cn/handle/122111/50701]  
专题中国科学院过程工程研究所
通讯作者Wang, Xi; Yao, Jiannian
作者单位1.Tianjin Univ, Mol Plus, Sch Chem Engn & Technol, Tianjin 300072, Peoples R China
2.Tianjin Univ, Collaborat Innovat Ctr Chem Sci & Engn, Tianjin 300072, Peoples R China
3.Tianjin Univ, Inst Mol Plus, Tianjin 300072, Peoples R China
4.Beijing Jiaotong Univ, Sch Sci, Dept Phys, Beijing 100044, Peoples R China
5.Chinese Acad Sci, Beijing Key Lab Ion Liquids Clean Proc, Inst Proc Engn, Beijing 100190, Peoples R China
6.Chinese Acad Sci, Inst Chem, Beijing Natl Lab Mol Sci, Key Lab Photochem, Beijing 100190, Peoples R China
推荐引用方式
GB/T 7714		 Zhang, Xuejing,Wang, Tianshuai,Yang, Yijun,et al. Breaking the Stable Triangle of Carbonate via W-O Bonds for Li-CO2 Batteries with Low Polarization[J]. ACS ENERGY LETTERS,2021,6(10):3503-3510.
APA Zhang, Xuejing.,Wang, Tianshuai.,Yang, Yijun.,Zhang, Xin.,Lu, Zongjing.,...&Yao, Jiannian.(2021).Breaking the Stable Triangle of Carbonate via W-O Bonds for Li-CO2 Batteries with Low Polarization.ACS ENERGY LETTERS,6(10),3503-3510.
MLA Zhang, Xuejing,et al."Breaking the Stable Triangle of Carbonate via W-O Bonds for Li-CO2 Batteries with Low Polarization".ACS ENERGY LETTERS 6.10(2021):3503-3510.

入库方式： OAI收割

来源：过程工程研究所

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