Cobalt phosphosulfide nanoparticles encapsulated into heteroatom-doped carbon as bifunctional electrocatalyst for Zn−air battery

Xu, Xiaolong, Wang, Shuo, Guo, Shiquan, San Hui, Kwan ORCID: https://orcid.org/0000-0001-7089-7587, Ma, Jiameng, Dinh, Duc Anh, Hui, Kwun Nam, Wang, Hao, Zhang, Lipeng and Zhou, Guowei (2022) Cobalt phosphosulfide nanoparticles encapsulated into heteroatom-doped carbon as bifunctional electrocatalyst for Zn−air battery. Advanced Powder Materials, 1 (3). ISSN 2772-834X

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Abstract

CoPS nanoparticles encapsulated with S, P, N tri-doped carbon material (SPNC) were proposed as bifunctional electrocatalyst of oxygen evolution reaction (OER) and oxygen reduction reaction (ORR) derived from zeolitic imidazolate framework-67. Density functional theory calculations consistently revealed that P element in CoPS@SPNC improves the electrical conductivity and reduces OH∗ hydrogenation energy barrier on Co sites, thereby facilitating the overall ORR/OER activities. A flexible Zn–air battery with CoPS@SPNC delivered an overpotential of 0.49 ​V, an energy efficiency above 80%, and a discharge voltage of 1.29 ​V at 2 ​mA ​cm−2 for 80 ​h.

Item Type: Article
Additional Information: Funding Information: This work was supported by the funding from Qilu University of Technology (Shandong Academy of Sciences), the Science and Technology Development Fund, Macau SAR (File No. 191/2017/A3, 041/2019/A1, 046/2019/AFJ, 0021/2019/AIR), the National Natural Science Foundation of China (Grant No. 51972180), the Multi-Year Research Grants (Nos. MYRG2017-00216-FST and MYRG2018-00192-IAPME) from the Research Services and Knowledge Transfer Office at the University of Macau, and UEA funding.
Uncontrolled Keywords: bifunctional electrocatalyst,heteroatom doping,zeolitic imidazolate framework,zn–air battery,ceramics and composites,metals and alloys,energy (miscellaneous),surfaces, coatings and films,catalysis,materials science (miscellaneous),sdg 7 - affordable and clean energy ,/dk/atira/pure/subjectarea/asjc/2500/2503
Faculty \ School: Faculty of Science > School of Engineering
UEA Research Groups: Faculty of Science > Research Groups > Emerging Technologies for Electric Vehicles (EV)
Faculty of Science > Research Groups > Energy Materials Laboratory
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Depositing User: LivePure Connector
Date Deposited: 07 Jan 2022 16:30
Last Modified: 22 Apr 2023 02:19
URI: https://ueaeprints.uea.ac.uk/id/eprint/82921
DOI: 10.1016/j.apmate.2021.12.003

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