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

被引:37
作者
Hao, Rui [1 ,2 ]
Chen, Jingjing [2 ]
Wang, Zhenyu [2 ]
Huang, Yanping [1 ]
Liu, Penggao [1 ]
Yan, Jun [1 ]
Liu, Kaiyu [1 ]
Liu, Chen [3 ]
Lu, Zhouguang [2 ]
机构
[1] Cent South Univ, Coll Chem & Chem Engn, Hunan Prov Key Lab Chem Power Sources, Changsha 410083, Peoples R China
[2] Southern Univ Sci & Technol, Guangdong Prov Key Lab Energy Mat Elect Power, Shenzhen Key Lab Hydrogen Energy, Dept Mat Sci & Engn, Shenzhen 518055, Peoples R China
[3] Shenzhen Univ, Coll Mat Sci & Engn, Guangdong Res Ctr Interfacial Engn Funct Mat, Shenzhen 518060, Peoples R China
基金
中国国家自然科学基金;
关键词
Oxygen reduction reaction; Oxygen evolution reaction; Metal-organic framework; Zn-air battery; EFFICIENT OXYGEN REDUCTION; ORGANIC FRAMEWORKS; GRAPHENE; IDENTIFICATION; NANOSHEETS; SITES; ALLOY; IRON;
D O I
10.1016/j.jcis.2020.10.130
中图分类号
O64 [物理化学(理论化学)、化学物理学];
学科分类号
070304 ; 081704 ;
摘要
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@CoFe0.01-N-C 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@CoFe0.01-N-C 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@CoFe0.01-N-C presents an outstanding stability for over 100 h in rechargeable Zn-air battery. (C) 2020 Elsevier Inc. All rights reserved.
引用
收藏
页码:621 / 629
页数:9
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