Effect of electrolyte pH on room-temperature photoelectrodeposition of CuO for hydrogen evolution reaction

Mokhamad Ali Rizqi Maulana; Setia Budi; Jumaeda Jatmika; Mohammad Hamzah Fauzi; Suci Winarsih; Akrajas Ali Umar

doi:10.1093/ce/zkaf052

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Effect of electrolyte pH on room-temperature photoelectrodeposition of CuO for hydrogen evolution reaction

更新时间：2026-02-06

- Effect of electrolyte pH on room-temperature photoelectrodeposition of CuO for hydrogen evolution reaction
- Effect of electrolyte pH on room-temperature photoelectrodeposition of CuO for hydrogen evolution reaction
- 清洁能源（英文） 2025年第6期
- 作者机构：
  
  1. The Center for Science Innovation
  2. Department of Chemistry, Faculty of Mathematics and Natural Sciences, Universitas Negeri Jakarta
  3. Research Center for Quantum Physics, National Research and Innovation Agency (BRIN), Building Kawasan Sains dan teknologi442, B.J. Habibie (Puspiptek)
  4. Institute of Microengineering and Nanoelectronics, Research Complex, Universiti Kebangsaan Malaysia, Bangi
- 作者简介：
- 基金信息：
  
  This research was financially supported by the Direktorat Penelitian dan Pengabdian Kepada Masyarakat (DPPM), Kementrian Pendidikan Tinggi, Sains, dan Teknologi of the Republic of Indonesia (Grant No. 3/UN39.14/C3/DT.05.00/PT-LP/PL/2025).
- DOI：10.1093/ce/zkaf052
  中图分类号：
- 纸质出版：2025
- 稿件说明：
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Mokhamad Ali Rizqi Maulana, Setia Budi, Jumaeda Jatmika, 等. Effect of electrolyte pH on room-temperature photoelectrodeposition of CuO for hydrogen evolution reaction[J]. 清洁能源（英文）, 2025,(6).

Mokhamad Ali Rizqi Maulana, Setia Budi, Jumaeda Jatmika, Mohammad Hamzah Fauzi, Suci Winarsih, Akrajas Ali Umar, Effect of electrolyte pH on room-temperature photoelectrodeposition of Cu2O for hydrogen evolution reaction, Clean Energy, Volume 9, Issue 6, December 2025, Pages 233–243, https://doi.org/10.1093/ce/zkaf052
Mokhamad Ali Rizqi Maulana, Setia Budi, Jumaeda Jatmika, 等. Effect of electrolyte pH on room-temperature photoelectrodeposition of CuO for hydrogen evolution reaction[J]. 清洁能源（英文）, 2025,(6). DOI： 10.1093/ce/zkaf052.

Mokhamad Ali Rizqi Maulana, Setia Budi, Jumaeda Jatmika, Mohammad Hamzah Fauzi, Suci Winarsih, Akrajas Ali Umar, Effect of electrolyte pH on room-temperature photoelectrodeposition of Cu2O for hydrogen evolution reaction, Clean Energy, Volume 9, Issue 6, December 2025, Pages 233–243, https://doi.org/10.1093/ce/zkaf052 DOI：

摘要

Abstract

Cu2O is a promising material for the hydrogen evolution reaction due to the favourable band gap. However

achieving a pure Cu2O phase typically requires high deposition temperatures. To overcome this

electrolyte pH modification was employed to synthesize pure Cu2O at room temperature. A key challenge in room-temperature electrodeposition is the slow deposition rate

which can be improved through photoelectrodeposition. This study explores the synthesis of pure Cu2O via controlled pH photoelectrodeposition for applications of the hydrogen evolution reaction. The results demonstrate that Cu2O films were successfully deposited in an alkaline electrolyte

with the best hydrogen evolution reaction catalytic performance observed at pH 8. This sample exhibited a low onset potential of 64 mV with respect to the standard reversible hydrogen electrode and a Tafel slope of 46 mV/dec. These findings provide the optimization of Cu2O synthesis for hydrogen production.

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