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

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

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 demonstrat...

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Bibliographic Details
Main Authors: 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
Format: Article
Language:English
Published: SpringerOpen 2025-03-01
Series:Nano-Micro Letters
Subjects:
Janus dual-atom catalyst
Bifunctional center
Bipolar doping
Oxygen redox reaction
Fuel cell
Online Access:https://doi.org/10.1007/s40820-025-01707-2
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Summary: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).
ISSN:2311-6706
2150-5551

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