Engineering Bipolar Doping in a Janus Dual-Atom Catalyst for Photo-Enhanced Rechargeable Zn-Air Battery

IF 36.3 1区材料科学 Q1 Engineering Nano-Micro Letters Pub Date : 2025-03-28 DOI:10.1007/s40820-025-01707-2

Ning Liu, Yinwu Li, Wencai Liu, Zhanhao Liang, Bin Liao, Fang Yang, Ming Zhao, Bo Yan, Xuchun Gui, Hong Bin Yang, Dingshan Yu, Zhiping Zeng, Guowei Yang

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Abstract

Highlights

Janus dual-atom catalyst (JDAC) with bifunctional centers was synthesized via a single-step bipolar doping strategy to promote efficient charge separation and superior electrocatalytic performance.
The in situ X-ray absorption near-edge structure and Raman spectroscopy analyses demonstrated that Ni and Fe centers in JDAC function as effective sites for oxygen evolution reaction and oxygen reduction reaction, and effectively suppress photoelectron recombination while enhancing photocurrent generation.
The assembled JDAC-based light-assisted rechargeable zinc–air batteries exhibited extraordinary stability at large current densities (300 cycles at 50 mA cm⁻², and 6000 cycles at 10 mA cm⁻² under light illumination).

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光增强可充电锌-空气电池Janus双原子催化剂的工程双极性掺杂

采用单步双极性掺杂策略合成了具有双功能中心的Janus双原子催化剂（JDAC），该催化剂具有高效的电荷分离和优异的电催化性能。原位x射线吸收近边结构和拉曼光谱分析表明，JDAC中的Ni和Fe中心是析氧反应和氧还原反应的有效位点，有效抑制了光电子复合，增强了光电流的产生。组装的jdac光辅助可充电锌-空气电池在大电流密度下表现出非凡的稳定性（在50 mA cm - 2下300次循环，在光照下10 mA cm - 2下6000次循环）。

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来源期刊

Nano-Micro Letters NANOSCIENCE & NANOTECHNOLOGY-MATERIALS SCIENCE, MULTIDISCIPLINARY

CiteScore

32.60

自引率

4.90%

发文量

981

审稿时长

1.1 months

期刊介绍： Nano-Micro Letters is a peer-reviewed, international, interdisciplinary, and open-access journal published under the SpringerOpen brand. Nano-Micro Letters focuses on the science, experiments, engineering, technologies, and applications of nano- or microscale structures and systems in various fields such as physics, chemistry, biology, material science, and pharmacy.It also explores the expanding interfaces between these fields. Nano-Micro Letters particularly emphasizes the bottom-up approach in the length scale from nano to micro. This approach is crucial for achieving industrial applications in nanotechnology, as it involves the assembly, modification, and control of nanostructures on a microscale.