Presentation Information
[1E05]Effect of Catalyst Surface Hydrophilicity on Oxygen Evolution Reaction Activity
*Karin Oiwa1, Rinpei Ueno1, Jinyu Li1, Linghui Li1, Ryuki Tsuji3, Osamu Oki3, Susmita Roy3, Ken Sakaushi2, Masashi Miyakawa2, Takashi Taniguchi2, Takahiro Kondo3 (1. Graduate School of Science and Technology, University of Tsukuba, 2. National Institute for Materials Science, 3. Department of Materials Science, Institute of Pure and Applied Sciences, University of Tsukuba)
Rhombohedral boron monosulfide (r-BS), composed of earth-abundant elements, is a promising catalyst for the oxygen evolution reaction (OER) in water electrolysis. In this study, we investigated the influence of carbon support materials and their surface hydrophilicity on the catalytic performance of r-BS. Catalysts were prepared by combining r-BS with various carbon materials and evaluated in alkaline solution. The results showed that supports with higher surface hydrophilicity significantly enhanced OER activity. These findings offer valuable insights into the design of next-generation OER catalysts based on earth-abundant elements, contributing to the advancement of sustainable hydrogen production.