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Encapsulating atomic molybdenum into hierarchical nitrogen-doped carbon nanoboxes for efficient oxygen reduction
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Ma, Fei-Xiang, Zhang, Guobin, Wang, Meiyu, Liang, Xiongyi, Lyu, Fucong, Xiao, Xufen, Wang, Peng, Zhen, Liang, Lu, Jian, Zheng, Lirong, Yang Li, Yang and Xu, Cheng-Yan (2022) Encapsulating atomic molybdenum into hierarchical nitrogen-doped carbon nanoboxes for efficient oxygen reduction. Journal of Colloid and Interface Science, 620 . pp. 67-76. doi:10.1016/j.jcis.2022.04.002 ISSN 0021-9797.
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WRAP-encapsulating-atomic-molybdenum-hierarchical-nitrogen-doped-carbon-nanoboxes-Peng-2022.pdf - Accepted Version - Requires a PDF viewer. Available under License Creative Commons Attribution Non-commercial No Derivatives 4.0. Download (6Mb) | Preview |
Official URL: https://doi.org/10.1016/j.jcis.2022.04.002
Abstract
Construction of single-atom catalysts (SACs) with maximally exposed active sites remains a challenging task mainly because of the lack of suitable host matrices. In this study, hierarchical N-doped carbon nanoboxes composed of ultrathin nanosheets with dispersed atomic Mo (denoted as hierarchical SA-Mo-C nanoboxes) were fabricated via a template-engaged multistep synthesis process. Comprehensive characterizations, including X-ray absorption fine structure analysis, reveal the formation of Mo-N atomic sites uniformly anchored on the hierarchical carbon nanoboxes. The prepared catalysts offer structural and morphological advantages, including ultrathin nanosheet units, unique hollow structures and abundant active Mo-N species, that result in excellent activity with a half-wave potential of 0.86 V vs. RHE and superb stability for the oxygen reduction reaction in 0.1 M KOH; thus, the catalysts are promising air-cathode catalysts for Zn-air batteries with a high peak power density of 157.6 mW cm .
Item Type: | Journal Article | |||||||||||||||
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Subjects: | Q Science > QD Chemistry | |||||||||||||||
Divisions: | Faculty of Science, Engineering and Medicine > Science > Physics | |||||||||||||||
SWORD Depositor: | Library Publications Router | |||||||||||||||
Library of Congress Subject Headings (LCSH): | Catalysts, Organic compounds -- Synthesis, Oxidation-reduction reaction, Nanostructured materials, Carbon | |||||||||||||||
Journal or Publication Title: | Journal of Colloid and Interface Science | |||||||||||||||
Publisher: | Academic Press Inc. Elsivier Science | |||||||||||||||
ISSN: | 0021-9797 | |||||||||||||||
Official Date: | 15 August 2022 | |||||||||||||||
Dates: |
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Volume: | 620 | |||||||||||||||
Page Range: | pp. 67-76 | |||||||||||||||
DOI: | 10.1016/j.jcis.2022.04.002 | |||||||||||||||
Status: | Peer Reviewed | |||||||||||||||
Publication Status: | Published | |||||||||||||||
Access rights to Published version: | Restricted or Subscription Access | |||||||||||||||
Date of first compliant deposit: | 9 May 2022 | |||||||||||||||
Date of first compliant Open Access: | 9 May 2022 | |||||||||||||||
RIOXX Funder/Project Grant: |
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