Graphene-supported Fe/Ni single atoms and FeNi alloy nanoparticles as bifunctional oxygen electrocatalysts for rechargeable zinc-air batteries

Xu，Zhiwen1; Chen，Guangyu2; Yang，Fei1,3; Jang，Juhee1; Liu，Guimei1; Xiao，Fei1; Sun，Yan1; Qiu，Xiaoyi1; Chen，Weiwei4; Su，Dong4; Gu，Meng3; Shao，Minhua1,2,5,6

2023-08-01

10.1016/j.electacta.2023.142549

Electrochimica Acta   影响因子和分区

0013-4686

1873-3859

The development of inexpensive and high-performance bifunctional electrocatalysts for oxygen reduction reaction (ORR) and oxygen evolution reaction (OER) is of crucial significance for rechargeable metal-air batteries, but remains challenging. Herein, we report an ingenious bifunctional oxygen electrocatalyst integrating ZIF-derived carbon-anchored Fe/Ni single atoms, FeNi alloy nanoparticles, and graphene support (denoted as Fe/Ni-NC||FeNi@G). Synergizing highly active Fe single atoms for the ORR and highly efficient FeNi alloy nanoparticles for the OER, the as-constructed Fe/Ni-NC||FeNi@G catalyst exhibits outstanding bifunctionality; the potential gap between the OER potential at 10 mA cm and the ORR half-wave potential is only 0.618 V, outperforming the benchmark Pt/C + Ir/C catalyst and most transition metal-based bifunctional catalysts reported in the literature. More importantly, the Fe/Ni-NC||FeNi@G-driven zinc-air battery (ZAB) delivers a maximum power density of ∼200 mW cm, a specific capacity of 876 mAh g, and excellent cycling stability with negligible voltage decay up to 500 hours (3000 cycles). This work provides an effective approach to designing highly efficient non-noble metal multifunctional catalysts for practical applications in rechargeable metal-air batteries.

Bifunctional oxygen electrocatalysts Fe/Ni single atoms FeNi alloy nanoparticles Rechargeable zinc-air batteries Synergistic effects

SCI ; EI

英语

其他

China Postdoctoral Science Foundation[2020M682660];

Electrochemistry

Electrochemistry

WOS:001006529900001

PERGAMON-ELSEVIER SCIENCE LTD

20231914069524

Atoms ; Binary alloys ; Electrolysis ; Electrolytic reduction ; Graphene ; Iron alloys ; Metal nanoparticles ; Oxygen ; Precious metals ; Zinc ; Zinc air batteries

Ore Treatment:533.1 ; Iron Alloys:545.2 ; Zinc and Alloys:546.3 ; Precious Metals:547.1 ; Secondary Batteries:702.1.2 ; Nanotechnology:761 ; Electrochemistry:801.4.1 ; Chemical Reactions:802.2 ; Chemical Agents and Basic Industrial Chemicals:803 ; Chemical Products Generally:804 ; Atomic and Molecular Physics:931.3

CHEMISTRY

2-s2.0-85158027983

Scopus

1.Department of Chemical and Biological Engineering,The Hong Kong University of Science and Technology,Clear Water Bay,Kowloon,Hong Kong,China
2.Fok Ying Tung Research Institute,The Hong Kong University of Science and Technology,Guangzhou,511458,China
3.Department of Materials Science and Engineering,Southern University of Science and Technology,Shenzhen,518055,China
4.Beijing National Laboratory for Condensed Matter Physics,Institute of Physics,Chinese Academy of Sciences,Beijing,100190,China
5.HKUST-Shenzhen Research Institute,Nanshan,No. 9 Yuexing 1st RD, South Area, Hi-tech Park, Shenzhen,518057,China
6.Energy Institute,The Hong Kong University of Science and Technology,Clear Water Bay,Kowloon,Hong Kong,China

Xu，Zhiwen,Chen，Guangyu,Yang，Fei,et al. Graphene-supported Fe/Ni single atoms and FeNi alloy nanoparticles as bifunctional oxygen electrocatalysts for rechargeable zinc-air batteries[J]. Electrochimica Acta,2023,458.

Xu，Zhiwen.,Chen，Guangyu.,Yang，Fei.,Jang，Juhee.,Liu，Guimei.,...&Shao，Minhua.(2023).Graphene-supported Fe/Ni single atoms and FeNi alloy nanoparticles as bifunctional oxygen electrocatalysts for rechargeable zinc-air batteries.Electrochimica Acta,458.

Xu，Zhiwen,et al."Graphene-supported Fe/Ni single atoms and FeNi alloy nanoparticles as bifunctional oxygen electrocatalysts for rechargeable zinc-air batteries".Electrochimica Acta 458(2023).