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Regulating electronic structure of CoN4 with axial Co—S for promoting oxygen reduction and Zn-air battery performance
Chen, Chang1; Chen, Zhiqiang2; Zhong, Junxi3; Song, Xin4; Chen, Dongfang4; Liu, Shoujie5; Cheong, Weng Chon6; Li, Jiazhan1; Tan, Xin1; He, Chang1; Zhang, Jiaqi1; Liu, Di1; Yuan, Qiuhua3; Chen, Chen1; Peng, Qing1; Li, Yadong1
2023-04
Source PublicationNANO RESEARCH
ISSN1998-0124
Volume16Issue:4Pages:4211–4218
Abstract

Regulating the coordination environment of transition-metal based materials in the axial direction with heteroatoms has shown great potential in boosting the oxygen reduction reaction (ORR). The coordination configuration and the regulation method are pivotal and elusive. Here, we report a combined strategy of matrix-activization and controlled-induction to modify the CoN site by axial coordination of Co—S (CoN-S), which was validated by the aberration-corrected electron microscopy and X-ray absorption fine structure analysis. The optimal CoN-S exhibits an excellent alkaline ORR activity, according to the half-wave potential (0.897 V vs. reversible hydrogen electrode (RHE)), Tafel slope (24.67 mV/dec), and kinetic current density. Moreover, the CoN-S based Zn-air battery displays a high power density of 187.55 mW/cm and an outstanding charge—discharge cycling stability for 160 h, demonstrating the promising application potential. Theoretical calculations indicate that the better regulation of CoN on electronic structure and thus the highly efficient ORR performance can be achieved by axial Co—S.

KeywordAxial Co—s Coordination Electronic Structure Regulation Oxygen Reduction Single-atom Co Zn-air Battery
DOI10.1007/s12274-022-5164-y
URLView the original
Indexed BySCIE
Language英語English
WOS Research AreaChemistry ; Science & Technology - Other Topics ; Materials Science ; Physics
WOS SubjectChemistry, Physical ; Nanoscience & Nanotechnology ; Materials Science, Multidisciplinary ; Physics, Applied
WOS IDWOS:000889437300009
PublisherTSINGHUA UNIV PRESS, B605D, XUE YAN BUILDING, BEIJING 100084, PEOPLES R CHINA
Scopus ID2-s2.0-85142772215
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Citation statistics
Document TypeJournal article
CollectionDEPARTMENT OF PHYSICS AND CHEMISTRY
Faculty of Science and Technology
Corresponding AuthorYuan, Qiuhua; Chen, Chen; Peng, Qing
Affiliation1.Department of Chemistry, Tsinghua University, Beijing, 100084, China
2.Beijing Key Laboratory of Research and Application for Aerospace Green Propellants, Beijing Institute of Aerospace Testing Technology, Beijing, 100048, China
3.College of Chemistry and Environmental Engineering, Shenzhen University, Shenzhen, 518060, China
4.State Key Laboratory of Automtive Safety and Energy, Tsinghua University, Beijing, 100084, China
5.Chemistry and Chemical Engineering Guangdong Laboratory, Shantou, 515031, China
6.Department of Physics and Chemistry, Faculty of Science and Technology, University of Macau, 999078, Macao
Recommended Citation
GB/T 7714
Chen, Chang,Chen, Zhiqiang,Zhong, Junxi,et al. Regulating electronic structure of CoN4 with axial Co—S for promoting oxygen reduction and Zn-air battery performance[J]. NANO RESEARCH, 2023, 16(4), 4211–4218.
APA Chen, Chang., Chen, Zhiqiang., Zhong, Junxi., Song, Xin., Chen, Dongfang., Liu, Shoujie., Cheong, Weng Chon., Li, Jiazhan., Tan, Xin., He, Chang., Zhang, Jiaqi., Liu, Di., Yuan, Qiuhua., Chen, Chen., Peng, Qing., & Li, Yadong (2023). Regulating electronic structure of CoN4 with axial Co—S for promoting oxygen reduction and Zn-air battery performance. NANO RESEARCH, 16(4), 4211–4218.
MLA Chen, Chang,et al."Regulating electronic structure of CoN4 with axial Co—S for promoting oxygen reduction and Zn-air battery performance".NANO RESEARCH 16.4(2023):4211–4218.
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