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Title: Decreasing the Overpotential of Aprotic Li-CO2 Batteries with the In-Plane Alloy Structure in Ultrathin 2D Ru-Based Nanosheets

Abstract

We report the aprotic Li-CO2 battery is emerging as a promising energy storage technology with the capability of CO2 fixation and conversion. However, its practical applications are still impeded by the large overpotential. Herein, the general synthesis of a series of ultrathin 2D Ru-M (M = Co, Ni, and Cu) nanosheets by a facile one-pot solvothermal method is reported. As a proof-of-concept application, the representative RuCo nanosheets are used as the cathode catalysts for Li-CO2 batteries, which demonstrate a low charge voltage of 3.74 V, a small overpotential of 0.94 V, and hence a high energy efficiency of 75%. Ex/in situ studies and density functional theory calculations reveal that the excellent catalytic performance of RuCo nanosheets originates from the enhanced adsorption toward Li and CO2 during discharge as well as the elevated electron interaction with Li2CO3 during charge by the in-plane RuCo alloy structure. This work indicates the feasibility of boosting the electrochemical performance of Li-CO2 batteries by in-plane metal alloy sites of ultrathin 2D alloy nanomaterials.

Authors:
 [1];  [1];  [2];  [1];  [1];  [3];  [3];  [4];  [5];  [1];  [1];  [1];  [1];  [6];  [1];  [1];  [1];  [1];  [2];  [6] more »;  [7];  [6];  [5];  [1];  [3];  [2]; ORCiD logo [8] « less
  1. City University of Hong Kong, Kowloon (Hong Kong)
  2. Beihang University, Beijing (China)
  3. SLAC National Accelerator Laboratory, Menlo Park, CA (United States). Stanford Synchrotron Radiation Lightsource (SSRL)
  4. Tsinghua University, Beijing (China)
  5. University of Electronic Sciences and Technology of China Chengdu (China)
  6. Chinese University of Hong Kong (Hong Kong)
  7. Chinese Academy of Sciences (CAS), Beijing (China)
  8. City University of Hong Kong, Kowloon (Hong Kong); City University of Hong Kong, Shenzhen (Hong Kong)
Publication Date:
Research Org.:
SLAC National Accelerator Laboratory (SLAC), Menlo Park, CA (United States)
Sponsoring Org.:
USDOE Office of Science (SC), Basic Energy Sciences (BES); National Natural Science Foundation of China (NSFC); National Precious Metals Material Engineering Research Center (NPMM); City University of Hong Kong; Chinese University of Hong Kong
OSTI Identifier:
1889846
Grant/Contract Number:  
AC02-76SF00515; 22005258; 22175148; 52102320; 9610480; 7005512; 7005600; 9680301; 4930977
Resource Type:
Accepted Manuscript
Journal Name:
Advanced Functional Materials
Additional Journal Information:
Journal Volume: 32; Journal Issue: 30; Journal ID: ISSN 1616-301X
Publisher:
Wiley
Country of Publication:
United States
Language:
English
Subject:
25 ENERGY STORAGE; 2D materials; alloy nanosheets; CO2 conversion; electrocatalysis; Li-CO2 electrochemistry

Citation Formats

Wang, Yunhao, Zhou, Jingwen, Lin, Chao, Chen, Bo, Guan, Zhiqiang, Ebrahim, Amani M., Qian, Guannan, Ye, Chenliang, Chen, Lin, Ge, Yiyao, Yun, Qinbai, Wang, Xixi, Zhou, Xichen, Wang, Gang, Li, Kedi, Lu, Pengyi, Ma, Yangbo, Xiong, Yuecheng, Wang, Tianshuai, Zheng, Long, Chu, Shengqi, Chen, Ye, Wang, Bin, Lee, Chun‐Sing, Liu, Yijin, Zhang, Qianfan, and Fan, Zhanxi. Decreasing the Overpotential of Aprotic Li-CO2 Batteries with the In-Plane Alloy Structure in Ultrathin 2D Ru-Based Nanosheets. United States: N. p., 2022. Web. doi:10.1002/adfm.202202737.
Wang, Yunhao, Zhou, Jingwen, Lin, Chao, Chen, Bo, Guan, Zhiqiang, Ebrahim, Amani M., Qian, Guannan, Ye, Chenliang, Chen, Lin, Ge, Yiyao, Yun, Qinbai, Wang, Xixi, Zhou, Xichen, Wang, Gang, Li, Kedi, Lu, Pengyi, Ma, Yangbo, Xiong, Yuecheng, Wang, Tianshuai, Zheng, Long, Chu, Shengqi, Chen, Ye, Wang, Bin, Lee, Chun‐Sing, Liu, Yijin, Zhang, Qianfan, & Fan, Zhanxi. Decreasing the Overpotential of Aprotic Li-CO2 Batteries with the In-Plane Alloy Structure in Ultrathin 2D Ru-Based Nanosheets. United States. https://doi.org/10.1002/adfm.202202737
Wang, Yunhao, Zhou, Jingwen, Lin, Chao, Chen, Bo, Guan, Zhiqiang, Ebrahim, Amani M., Qian, Guannan, Ye, Chenliang, Chen, Lin, Ge, Yiyao, Yun, Qinbai, Wang, Xixi, Zhou, Xichen, Wang, Gang, Li, Kedi, Lu, Pengyi, Ma, Yangbo, Xiong, Yuecheng, Wang, Tianshuai, Zheng, Long, Chu, Shengqi, Chen, Ye, Wang, Bin, Lee, Chun‐Sing, Liu, Yijin, Zhang, Qianfan, and Fan, Zhanxi. Wed . "Decreasing the Overpotential of Aprotic Li-CO2 Batteries with the In-Plane Alloy Structure in Ultrathin 2D Ru-Based Nanosheets". United States. https://doi.org/10.1002/adfm.202202737. https://www.osti.gov/servlets/purl/1889846.
@article{osti_1889846,
title = {Decreasing the Overpotential of Aprotic Li-CO2 Batteries with the In-Plane Alloy Structure in Ultrathin 2D Ru-Based Nanosheets},
author = {Wang, Yunhao and Zhou, Jingwen and Lin, Chao and Chen, Bo and Guan, Zhiqiang and Ebrahim, Amani M. and Qian, Guannan and Ye, Chenliang and Chen, Lin and Ge, Yiyao and Yun, Qinbai and Wang, Xixi and Zhou, Xichen and Wang, Gang and Li, Kedi and Lu, Pengyi and Ma, Yangbo and Xiong, Yuecheng and Wang, Tianshuai and Zheng, Long and Chu, Shengqi and Chen, Ye and Wang, Bin and Lee, Chun‐Sing and Liu, Yijin and Zhang, Qianfan and Fan, Zhanxi},
abstractNote = {We report the aprotic Li-CO2 battery is emerging as a promising energy storage technology with the capability of CO2 fixation and conversion. However, its practical applications are still impeded by the large overpotential. Herein, the general synthesis of a series of ultrathin 2D Ru-M (M = Co, Ni, and Cu) nanosheets by a facile one-pot solvothermal method is reported. As a proof-of-concept application, the representative RuCo nanosheets are used as the cathode catalysts for Li-CO2 batteries, which demonstrate a low charge voltage of 3.74 V, a small overpotential of 0.94 V, and hence a high energy efficiency of 75%. Ex/in situ studies and density functional theory calculations reveal that the excellent catalytic performance of RuCo nanosheets originates from the enhanced adsorption toward Li and CO2 during discharge as well as the elevated electron interaction with Li2CO3 during charge by the in-plane RuCo alloy structure. This work indicates the feasibility of boosting the electrochemical performance of Li-CO2 batteries by in-plane metal alloy sites of ultrathin 2D alloy nanomaterials.},
doi = {10.1002/adfm.202202737},
journal = {Advanced Functional Materials},
number = 30,
volume = 32,
place = {United States},
year = {Wed May 04 00:00:00 EDT 2022},
month = {Wed May 04 00:00:00 EDT 2022}
}

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