Highly accessible dual-metal atomic pairs for enhancing oxygen redox reaction in zinc-air batteries

Ao, Xiang1,3; Li, Linfeng2; Yun, So Yeon1; Deng, Yong4; Yoon, Woosik1; Wang, Peixing1; Jin, Xiaoyan1; Dai, Liming3; Wang, Chundong2; Hwang, Seong-Ju1

2023-12-15

10.1016/j.nanoen.2023.108952

NANO ENERGY   影响因子和分区

2211-2855

2211-3282

The bifunctional oxygen electrocatalyst acts as a key component for zinc-air batteries; however, the design of economically-feasible bifunctional electrocatalysts showing outstanding functionality and durability remains challenging. Herein, we report the preparation of homogeneously scattered dual Fe-Ni atomic pairs stabilized in porous N-doped carbon matrix with a hierarchically porous nanoarchitecture (denoted as FeNi-NHC), wherein the atomically isolated bimetallic configuration is verified by combinative investigation of microscopy, spectroscopy, and theoretical computations. As an oxygen electrocatalyst in a basic electrolyte, FeNi-NHC exhibits an exceptional activity, achieving an outstanding half-wave potential (0.934 V vs. RHE) for oxygen reduction re-action, and a small overpotential for oxygen evolution reaction (254 mV at 10 mA cm-2). Furthermore, the zinc-air battery constructed with FeNi-NHC catalyst delivers an excellent functionality featuring a high maximum power density (126 mW cm-2) and insignificant activity decay after 200 charge-discharge cycles. Theoretical computations further reveal that the interaction effect of neighboring metal atoms in the bimetallic Fe-Ni sites energetically promotes the catalytic process by reducing the overall reaction barriers via optimization of adsorption-desorption behaviors.

Zinc-air batteries Bifunctional oxygen electrocatalysts Hierarchically porous carbon Dual -metal pairs

SCI ; EI

英语

其他

National Research Foundation of Korea (NRF) - Korea government (MSIT)["RS-2023-00208355","NRF-2022M3H4A408610312"] ; Ministry of Science and ICT[2021M3H4A1A03049662] ; National Natural Science Foundation of China["51972129","52272202"] ; Science and Technology Innovation Committee Foundation of Shenzhen[JCYJ20190813172609404]

Chemistry ; Science & Technology - Other Topics ; Materials Science ; Physics

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

WOS:001088674100001

ELSEVIER

20234314960043

Atoms ; Carbon ; Doping (additives) ; Electrocatalysts ; Electrolysis ; Electrolytes ; Electrolytic reduction ; Porous materials ; Redox reactions ; Zinc ; Zinc air batteries

Ore Treatment:533.1 ; Zinc and Alloys:546.3 ; Electric Batteries and Fuel Cells:702 ; Secondary Batteries:702.1.2 ; 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 ; Materials Science:951

2-s2.0-85174685410

Web of Science

1.Yonsei Univ, Dept Mat Sci & Engn, Seoul 03722, South Korea
2.Huazhong Univ Sci & Technol, Sch Integrated Circuits, Wuhan Natl Lab Optoelect, Wuhan 430074, Peoples R China
3.Univ New South Wales, Australian Carbon Mat Ctr A CMC, Sch Chem Engn, Sydney, NSW 2052, Australia
4.Southern Univ Sci & Technol, Pico Ctr, SUSTech Core Res Facil, Shenzhen 518055, Peoples R China

Ao, Xiang,Li, Linfeng,Yun, So Yeon,et al. Highly accessible dual-metal atomic pairs for enhancing oxygen redox reaction in zinc-air batteries[J]. NANO ENERGY,2023,118.

Ao, Xiang.,Li, Linfeng.,Yun, So Yeon.,Deng, Yong.,Yoon, Woosik.,...&Hwang, Seong-Ju.(2023).Highly accessible dual-metal atomic pairs for enhancing oxygen redox reaction in zinc-air batteries.NANO ENERGY,118.

Ao, Xiang,et al."Highly accessible dual-metal atomic pairs for enhancing oxygen redox reaction in zinc-air batteries".NANO ENERGY 118(2023).