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| Breaking the Stable Triangle of Carbonate via W-O Bonds for Li-CO2 Batteries with Low Polarization | |
| Zhang, Xuejing1,2; Wang, Tianshuai3; Yang, Yijun4; Zhang, Xin3; Lu, Zongjing1,2; Wang, Jingnan3; Sun, Chao3; Diao, Yanyan5; Wang, Xi4; Yao, Jiannian1,2,6 | |
| 2021-10-08 | |
| Source Publication | ACS ENERGY LETTERS
 |
| ISSN | 2380-8195 |
| Volume | 6Issue:10Pages:3503-3510 |
| Abstract | 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. |
| DOI | 10.1021/acsenergylett.1c01428 |
| Language | 英语 |
| WOS Keyword | GRAPHENE ; NANOPARTICLES ; CATHODE ; ELECTROCATALYSTS ; SPECTRA ; SURFACE |
| Funding Project | 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 Research Area | Chemistry ; Electrochemistry ; Energy & Fuels ; Science & Technology - Other Topics ; Materials Science |
| WOS Subject | Chemistry, Physical ; Electrochemistry ; Energy & Fuels ; Nanoscience & Nanotechnology ; Materials Science, Multidisciplinary |
| Funding Organization | 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 |
| WOS ID | WOS:000707987500015 |
| Publisher | AMER CHEMICAL SOC |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://ir.ipe.ac.cn/handle/122111/50702 |
| Collection | 中国科学院过程工程研究所 |
| Corresponding Author | Wang, Xi; Yao, Jiannian |
| Affiliation | 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 |
| Recommended Citation 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. |
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