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Updated: Oct 25, 2026

Solar-Driven Electrochemical Green Fuel Production from CO2 and Water Using Ti3C2Tx MXene-Supported CuZn and NiCo Catalysts
Published on: November 7, 2025
Electrochemical-oxidation-reduction-generated distorted nanotwins activate Cu for efficient alkaline hydrogen
Jianing Chen1, Yi Feng1, Haolong Chang2
1College of Chemistry and Materials Science, Chongqing Normal University, Chongqing 401331, China. yfeng@cqnu.edu.cn.
Abstract:
The alkaline hydrogen evolution reaction (HER) is a critical process in the electrochemical production of hydrogen fuel from water, offering a promising route for energy storage. However, for practical applications, developing catalysts for the alkaline HER that simultaneously possess high activity, long-term durability, and economic feasibility remains a significant challenge. Herein, a Cu electrode featuring abundant distorted nanotwins was fabricated via electrochemical oxidation-reduction. It achieved a low overpotential (∼94 mV) and showed no degradation over 10 days of continuous operation for the alkaline hydrogen evolution reaction. Thus, a non-active Cu catalyst has been successfully transformed into a highly active electrode.
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