Chae, Sang Youn Yoon, Noyoung Mehmood, Adeel Joo, Oh shim Park, Eun Duck 2024-12-06T10:00:10Z 2024-12-06T10:00:10Z 2024-12-06 2025-02 0169-4332 https://pubs.kist.re.kr/handle/201004/151302 A photocatalyst-assisted electrolysis system, has been demonstrated to reduce energy consumption and provide stable operation for hydrogen production under intermittent light irradiation. In the photocatalyst-assisted electrolysis system cell, the photocatalyst, PtRu-WO3, stores solar energy as chemical energy via the formation of Fe3+ ions and O2 evolution during the daytime on the anolyte side; subsequently, hydrogen is produced through water electrolysis using the stored solar energy at night on the catholyte side. Simulated and natural solar energy was successfully stored by an energy-buffer system of photocatalyst/Fe2+/3+ ions for stable operation under dark conditions. Additionally, the operation of a large-scale photocatalyst-assisted electrolysis cell (light illumination area of 122.5 cm2) under natural sunlight irradiation was demonstrated. The hydrogen production efficiency was approximately -70 % higher than that of a conventional water electrolysis cell using the same electrical power. English Elsevier BV Pt-Ru decorated WO3-based photocatalyst-assisted electrolysis hybrid cell for hydrogen production Article 10.1016/j.apsusc.2024.161818 1 Applied Surface Science, v.683 Applied Surface Science 683 N scie scopus 001363312700001 2-s2.0-85209585881 Chemistry, Physical Materials Science, Coatings & Films Physics, Applied Physics, Condensed Matter Chemistry Materials Science Physics Article PHOTOELECTROCHEMICAL CELL VISIBLE-LIGHT SOLAR-ENERGY WATER OXIDATION PHOTOSYSTEM-II CONVERSION ELECTRICITY REDUCTION Photoelectrochemical (PEC) cell Photocatalyst Electrolysis Hybrid PEC cell PtRu-WO 3