Trimetallic Zeolitic imidazolite framework-derived Co nanoparticles@CoFe-nitrogen-doped porous carbon as bifunctional electrocatalysts for Zn-air battery

Rui Hao; Jingjing Chen; Zhenyu Wang; Yanping Huang; Penggao Liu; Jun Yan; Kaiyu Liu; Chen Liu; Zhouguang Lu

doi:10.1016/j.jcis.2020.10.130

Trimetallic Zeolitic imidazolite framework-derived Co nanoparticles@CoFe-nitrogen-doped porous carbon as bifunctional electrocatalysts for Zn-air battery

J Colloid Interface Sci. 2021 Mar 15:586:621-629. doi: 10.1016/j.jcis.2020.10.130. Epub 2020 Nov 3.

Authors

Rui Hao¹, Jingjing Chen², Zhenyu Wang², Yanping Huang³, Penggao Liu³, Jun Yan³, Kaiyu Liu⁴, Chen Liu⁵, Zhouguang Lu⁶

Affiliations

¹ Hunan Provincial Key Laboratory of Chemical Power Sources, College of Chemistry and Chemical Engineering, Central South University, Changsha 410083, PR China; Department of Materials Science and Engineering, Shenzhen Key Laboratory of Hydrogen Energy, Guangdong Provincial Key Laboratory of Energy Materials for Electric Power, Southern University of Science and Technology, Shenzhen 518055, PR China.
² Department of Materials Science and Engineering, Shenzhen Key Laboratory of Hydrogen Energy, Guangdong Provincial Key Laboratory of Energy Materials for Electric Power, Southern University of Science and Technology, Shenzhen 518055, PR China.
³ Hunan Provincial Key Laboratory of Chemical Power Sources, College of Chemistry and Chemical Engineering, Central South University, Changsha 410083, PR China.
⁴ Hunan Provincial Key Laboratory of Chemical Power Sources, College of Chemistry and Chemical Engineering, Central South University, Changsha 410083, PR China. Electronic address: kaiyuliu309@163.com.
⁵ Guangdong Research Center for Interfacial Engineering of Functional Materials, College of Materials Science and Engineering, Shenzhen University, Shenzhen 518060, PR China. Electronic address: liuchen@szu.edu.cn.
⁶ Department of Materials Science and Engineering, Shenzhen Key Laboratory of Hydrogen Energy, Guangdong Provincial Key Laboratory of Energy Materials for Electric Power, Southern University of Science and Technology, Shenzhen 518055, PR China. Electronic address: luzg@sustech.edu.cn.

PMID: 33190832
DOI: 10.1016/j.jcis.2020.10.130

Abstract

Searching for high active, low cost and durable catalysts for oxygen reduction reaction (ORR) and oxygen evolution reaction (OER) remains challenge in developing metal-air battery cathodes. Herein, we proposed a novel bifunctional catalyst derived from the pyrolysis of Co/Fe/Zn trimetallic zeolitic imidazolite framework. The obtained Co@CoFe_0.01NC catalyst displays desirable activity for both ORR and OER (E_1/2 = 0.844 V, E_j=10 = 1.654 V). The Zn-air battery equipped with Co@CoFe_0.01NC catalyst on the cathode exhibits a high peak power density of 174.1 mW cm^-2, which is much superior than that of commercial 20% Pt/C (87.6 mW cm^-2). Significantly, the designed Co@CoFe_0.01NC presents an outstanding stability for over 100 h in rechargeable Zn-air battery.

Keywords: Metal-organic framework; Oxygen evolution reaction; Oxygen reduction reaction; Zn-air battery.