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Catalytically Active Site Identification of Molybdenum Disulfide as Gas Cathode in a Nonaqueous Li-CO2 Battery
Chen, Chih-Jung1; Huang, Chih-Sheng1; Huang, Yu-Cheng2; Wang, Fu-Ming3,4,5,6; Wang, Xing-Chun3; Wu, Ching-Chen7; Chang, Wen-Sheng7; Dong, Chung-Li2; Yin, Li-Chang8; Liu, Ru-Shi1
Corresponding AuthorDong, Chung-Li(cldong@mail.tku.edu.tw) ; Yin, Li-Chang(lcyin@imr.ac.cn) ; Liu, Ru-Shi(rsliu@ntu.edu.tw)
2021-02-10
Source PublicationACS APPLIED MATERIALS & INTERFACES
ISSN1944-8244
Volume13Issue:5Pages:6156-6167
AbstractLi-CO2 batteries have recently attracted attention as promising candidates for next-generation energy storage devices due to their extremely high theoretical energy density. The real application of Li-CO2 cells involves addressing several drawbacks, including high charging potential, poor coulombic efficiency, and low rechargeability. Molybdenum disulfide supported on carbon nanotubes (MoS2/CNT) with various ratios functioned as a cathode catalyst for Li-CO2 batteries. The optimal MoS2/CNT composite achieved a maximum discharge capacity of 8551 mAh g(-1) with a coulombic efficiency of 96.7%. This hybrid also obtained an initial charging plateau of 3.87 V at a current density of 100 mA g(-1) with a cutoff capacity of 500 mAh g(-1). It provided ideal electrochemical stability of 142 cycles at the current densities of 100 mA g(-1), which was comparable with that of some precious metal catalysts. This optimized MoS2/CNT was also cycled at 200 and 400 mA g(-1) for 112 and 55 times, respectively. Density functional theory calculations demonstrated that the sulfided Mo-edge (s-Mo-edge) on MoS2 materials showed appropriate adsorption strengths of Li, CO2, and Li2CO3. Moreover, joint results of Raman profiles and extended X-ray absorption fine structure spectra elucidated that the catalytic efficiencies of MoS2/CNT hybrids were proportional to the quantities of exposed s-Mo-edge active sites.
Keywordnonaqueous Li-CO2 battery cathode catalyst molybdenum disulfide carbon nanotube sulfided Mo-edge catalytic active sites
Funding OrganizationBureau of Energy (BOE), Taiwan ; Ministry of Economy Affairs (MOEA), Taiwan
DOI10.1021/acsami.0c17942
Indexed BySCI
Languageen
Funding ProjectBureau of Energy (BOE), Taiwan ; Ministry of Economy Affairs (MOEA), Taiwan[105-D0114]
WOS Research AreaScience & Technology - Other Topics ; Materials Science
WOS SubjectNanoscience & Nanotechnology ; Materials Science, Multidisciplinary
WOS IDWOS:000619638400024
PublisherAMER CHEMICAL SOC
Citation statistics
Cited Times:2[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.imr.ac.cn/handle/321006/161232
Collection中国科学院金属研究所
Corresponding AuthorDong, Chung-Li; Yin, Li-Chang; Liu, Ru-Shi
Affiliation1.Natl Taiwan Univ, Dept Chem, Taipei 10617, Taiwan
2.Tamkang Univ, Dept Phys, Tamsui 25137, Taiwan
3.Natl Taiwan Univ Sci & Technol, Grad Inst Appl Sci & Technol, Taipei 10607, Taiwan
4.Natl Taiwan Univ Sci & Technol, Sustainable Energy Ctr, Taipei 10607, Taiwan
5.Chung Yuan Christian Univ, Dept Chem Engn, Taoyuan 32023, Taiwan
6.Chung Yuan Christian Univ, R&D Ctr Membrane Technol, Taoyuan 32023, Taiwan
7.Ind Technol Res Inst, Green Energy & Environm Res Labs, Hsinchu 31040, Taiwan
8.Chinese Acad Sci, Inst Met Res, Shenyang Natl Lab Mat Sci, Shenyang 110016, Peoples R China
Recommended Citation
GB/T 7714
Chen, Chih-Jung,Huang, Chih-Sheng,Huang, Yu-Cheng,et al. Catalytically Active Site Identification of Molybdenum Disulfide as Gas Cathode in a Nonaqueous Li-CO2 Battery[J]. ACS APPLIED MATERIALS & INTERFACES,2021,13(5):6156-6167.
APA Chen, Chih-Jung.,Huang, Chih-Sheng.,Huang, Yu-Cheng.,Wang, Fu-Ming.,Wang, Xing-Chun.,...&Liu, Ru-Shi.(2021).Catalytically Active Site Identification of Molybdenum Disulfide as Gas Cathode in a Nonaqueous Li-CO2 Battery.ACS APPLIED MATERIALS & INTERFACES,13(5),6156-6167.
MLA Chen, Chih-Jung,et al."Catalytically Active Site Identification of Molybdenum Disulfide as Gas Cathode in a Nonaqueous Li-CO2 Battery".ACS APPLIED MATERIALS & INTERFACES 13.5(2021):6156-6167.
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