Preparation and characterization of groove-shaped Ti/Cu layered electrode with superior hydrogen evolution performance

Materials Science and Engineering: B Pub Date : 2023-11-28 DOI:10.1016/j.mseb.2023.117060

Wei Sun, Jincheng Yang, Jing Wen, Wanjun Mao, Minghan Yang, Pengfei Han

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Abstract

In this study, a comprehensive investigation on the performance of laminated electrodes for hydrogen evolution reaction (HER) is conducted using experiments and numerical simulation. A laminated composite electrode with superior catalytic activity is designed, synthesized and tested, which is comparably researched with traditional homogeneous electrodes. A Ti/Cu laminated electrode with a slot width of 250 µm is fabricated by explosive welding and an electrochemical corrosion process is applied to create groove-shaped interface. The results show that the grooved laminated electrode has superior hydrogen precipitation performance and conductivity, exceptional stability, and minimal potential fluctuation. Hydrogen production efficiency of laminated electrode is 120% higher than that of Cu electrode, which is verified in our self-made hydrogen-making device. COMSOL simulation results were found to be consistent with the experimental findings. Overall, this study provides valuable insight into enhancing electrode performance, with broad engineering implications.

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具有优异析氢性能的凹槽状Ti/Cu层状电极的制备与表征

本文采用实验和数值模拟的方法对层压电极的析氢性能进行了全面的研究。设计、合成并测试了一种具有优异催化活性的层状复合电极，并与传统的均质电极进行了比较研究。采用爆炸焊接法制备槽宽为250µm的Ti/Cu层压电极，并采用电化学腐蚀工艺形成凹槽状界面。结果表明，该沟槽层合电极具有优异的析氢性能和导电性，优异的稳定性和极小的电位波动。层压电极的制氢效率比铜电极高120%，并在自制制氢装置中得到验证。COMSOL模拟结果与实验结果一致。总的来说，这项研究为提高电极性能提供了有价值的见解，具有广泛的工程意义。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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Materials Science and Engineering: B

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