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

Xiaolong Xu; Shuo Wang; Shiquan Guo; Kwan San Hui; Jiameng Ma; Duc Anh Dinh; Kwun Nam Hui; Hao Wang; Lipeng Zhang; Guowei Zhou

Advanced Powder Materials (Jul 2022)

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

Xiaolong Xu,
Shuo Wang,
Shiquan Guo,
Kwan San Hui,
Jiameng Ma,
Duc Anh Dinh,
Kwun Nam Hui,
Hao Wang,
Lipeng Zhang,
Guowei Zhou

Affiliations

Xiaolong Xu: School of Materials Science and Engineering, Qilu University of Technology (Shandong Academy of Sciences), Jinan 250353, China; College of Materials Science and Engineering, Beijing University of Technology, Beijing 100124, China; Engineering, Faculty of Science, University of East Anglia, Norwich, United Kingdom; Joint Key Laboratory of the Ministry of Education, Institute of Applied Physics and Materials Engineering, University of Macau, Avenida da Universidade, Taipa, Macau SAR, China
Shuo Wang: Joint Key Laboratory of the Ministry of Education, Institute of Applied Physics and Materials Engineering, University of Macau, Avenida da Universidade, Taipa, Macau SAR, China
Shiquan Guo: College of Materials Science and Engineering, Beijing University of Technology, Beijing 100124, China
Kwan San Hui: Engineering, Faculty of Science, University of East Anglia, Norwich, United Kingdom; Corresponding author.
Jiameng Ma: College of Energy, State Key Laboratory of Organic Inorganic Composites, Beijing University of Chemical Technology, Beijing 100029, China
Duc Anh Dinh: NTT Hi-tech Institute, Nguyen Tat Thanh University, Ho Chi Minh City 700000, Viet Nam
Kwun Nam Hui: Joint Key Laboratory of the Ministry of Education, Institute of Applied Physics and Materials Engineering, University of Macau, Avenida da Universidade, Taipa, Macau SAR, China; Corresponding author.
Hao Wang: College of Materials Science and Engineering, Beijing University of Technology, Beijing 100124, China; Corresponding author.
Lipeng Zhang: College of Energy, State Key Laboratory of Organic Inorganic Composites, Beijing University of Chemical Technology, Beijing 100029, China
Guowei Zhou: Key Laboratory of Fine Chemicals in Universities of Shandong, Jinan Engineering Laboratory for Multi-scale Functional Materials, School of Chemistry and Chemical Engineering, Qilu University of Technology (Shandong Academy of Sciences), Jinan 250353, China; Corresponding author.

Journal volume & issue: Vol. 1, no. 3
p. 100027

Abstract

Read online

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.

Published in Advanced Powder Materials

ISSN: 2772-834X (Online)
Publisher: KeAi Communications Co. Ltd.
Country of publisher: China
LCC subjects: Technology: Mining engineering. Metallurgy
Website: https://www.keaipublishing.com/en/journals/advanced-powder-materials/

About the journal

Abstract

Keywords