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Updated: May 20, 2025
![Protein Film Infrared Electrochemistry Demonstrated for Study of H2 Oxidation by a [NiFe] Hydrogenase](/_next/image?url=https%3A%2F%2Fcloudfront.jove.com%2FCDNSource%2Fteasers%2F55858.jpg&w=3840&q=50)
Protein Film Infrared Electrochemistry Demonstrated for Study of H2 Oxidation by a [NiFe] Hydrogenase
Published on: December 4, 2017
An integral composite electrode with low Ir loading for efficient acidic oxygen evolution
Peng Zhao1,2, Kaihang Yue2, Yao Dai1,2
1College of Materials Science and Engineering Hunan University, Changsha, Hunan 410082, China. chenxuli@hnu.edu.cn.
Abstract:
The development of low-Ir-loading oxygen evolution reaction catalysts with high performance and stability is a major challenge for advancing proton exchange membrane water electrolysis (PEMWE). In this study, we report an integral composite electrode by depositing TiO2 nanowires on titanium plate via an in situ growth method and subsequently loading Ir nanoparticles onto these nanowires (Ir-TiO2/TP). This approach not only reduces the usage of Ir but also significantly enhances the catalytic performance, with a low overpotential of 199 mV at 10 mA cm-2, while maintaining negligible activity decay over 440 hours at 10 mA cm-2 in 0.5 M H2SO4.
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