Regulating atomic Fe/Cu dual sites with unsymmetrical Fe-N 6 and Cu-N 1 S 2 coordination for promoting bifunctional oxygen electrocatalysis in advanced zinc-air batteries

Peng, Jing1; Hu, Bihua1; Li, Zhitong1; Zhong, Xiongwei1; Shi, Junwei1; Cui, Shuyu1; Wang, Xingzhu1,2; Xu, Baomin1

2024-04-01

10.1016/j.ensm.2024.103342

ENERGY STORAGE MATERIALS   影响因子和分区

2405-8297

2405-8289

Dual -metal single -atom catalysts with heteronuclear active sites exhibit superior oxygen catalysis performance than their single -atom counterparts, facilitating the practical applications in advanced electrochemical energy devices. Herein, a Fe -Cu dual -metal single -atom catalyst with Fe -N 6 and Cu-N 1 S 2 coordination environment (FeCu-DSAs/NSC) is reported. Due to the synergism of bimetallic active sites and asymmetric heteroatom coordination, the resultant FeCu-DSAs/NSC displays better bifunctional catalytic performance (a small potential gap between the E eta 10 and E 1/2 , Delta E=0.647 V) when compared with the counterparts (Pt/C+IrO 2 and Cu-ISAs/ NSC), as well as surpassing most of bifunctional metal atom -based catalysts reported to date. As expected, FeCu-DSAs/NSC based rechargeable zinc -air battery shows remarkable superiority than commercial Pt/C+IrO 2 benchmark, resulting in a high peak power density (230.66 mW cm -2 ), open -circuit voltage (1.464 V) and longterm cycling stability (up to 350 h at 10 mA cm -2 ).

Dual -metal single -atom FeCu-DSAs/NSC Bifunctional catalytic performance Rechargeable zinc -air batteries

SCI ; EI

英语

第一 ; 通讯

Key Fundamental Research Project funding from the Shenzhen Science and Technology Innovation Committee["JCYJ20200109141014474","JCYJ20220818100406014"]

Chemistry ; Science & Technology - Other Topics ; Materials Science

Chemistry, Physical ; Nanoscience & Nanotechnology ; Materials Science, Multidisciplinary

WOS:001221117500001

ELSEVIER

Web of Science

1.Southern Univ Sci & Technol, Dept Mat Sci & Engn, Shenzhen 518055, Peoples R China
2.Shenzhen Putai Technol Co Ltd, Shenzhen 518110, Peoples R China

Peng, Jing,Hu, Bihua,Li, Zhitong,et al. Regulating atomic Fe/Cu dual sites with unsymmetrical Fe-N 6 and Cu-N 1 S 2 coordination for promoting bifunctional oxygen electrocatalysis in advanced zinc-air batteries[J]. ENERGY STORAGE MATERIALS,2024,68.

Peng, Jing.,Hu, Bihua.,Li, Zhitong.,Zhong, Xiongwei.,Shi, Junwei.,...&Xu, Baomin.(2024).Regulating atomic Fe/Cu dual sites with unsymmetrical Fe-N 6 and Cu-N 1 S 2 coordination for promoting bifunctional oxygen electrocatalysis in advanced zinc-air batteries.ENERGY STORAGE MATERIALS,68.

Peng, Jing,et al."Regulating atomic Fe/Cu dual sites with unsymmetrical Fe-N 6 and Cu-N 1 S 2 coordination for promoting bifunctional oxygen electrocatalysis in advanced zinc-air batteries".ENERGY STORAGE MATERIALS 68(2024).