（11月17日）Photocatalytic Production of Solar Hydrogen and Fuels from Water

报告时间：2025年11月17日上午11:00-12:00

报告地点：福州大学阳光科技大厦二楼会议室

报 告 人：Kazunari Domen（日本东京大学/信州大学）

主持人：安保正一 教授

组织单位：光催化重点实验室

联系人：林珍珍

联系方式：13675091109

报告摘要:

Sunlight-driven overall water splitting using particulate photocatalysts is of growing interest as a means of producing green hydrogen and fuels because systems based on particulate photocatalysts can be spread over large areas using potentially inexpensive processes. The author’s group has studied various oxides, (oxy)nitrides, and (oxy)sulfides as photocatalysts for overall water splitting. Recently, by refining the preparation conditions of the photocatalyst and the loading conditions of the cocatalysts, the apparent quantum yield of overall water splitting using SrTiO3 has reached more than 90% at 365 nm, corresponding to an internal quantum efficiency close to unity. This observation means that particulate photocatalysts can drive the endergonic overall water splitting reaction with almost no recombination loss, as in photon-to-chemical conversion processes during photosynthesis. Using a modified SrTiO3 photocatalyst, a green hydrogen production system based on 100-m2 arrayed photocatalytic overall water splitting panels and an oxyhydrogen gas separation module was constructed and its performance and system characteristics, including safety issues, were reported.

At present, much larger scale solar hydrogen production system is being constructed.

The hydrogen produced was also shown to be applicable to the conversion of carbon dioxide into chemical fuels. However, for practical solar hydrogen production, it is essential to radically improve the solar-to-hydrogen energy conversion efficiency of overall water splitting by developing photocatalysts that are highly active under visible light, and to develop suitable reaction systems for practical green hydrogen production. In my talk, recent advances and challenges in photocatalytic materials and reaction systems for mass production of green hydrogen and fuels will be discussed.

报告人简介：

Kazunari Domen教授受聘于日本东京大学与信州大学，也是东京工业大学的名誉教授，是国际著名的光催化学者，在光催化分解水、人工光合成领域做出卓越贡献，被公认为这个领域的领跑者。曾任“第八届东京先进催化科学与技术会议”主席，“第176届法拉第讨论会：新一代能源化学材料国际学术会议”科学委员会成员等，为催化科学和技术的发展做出了重要贡献。

Kazunari Domen教授组织了一支多学科交叉的光催化创新团队，研制出一系列高效半导体光催化剂，其研发的光催化分解水平板原型装置以及一百平方米的光催化分解水平板示范装置，在光催化领域受到了广泛的关注。研究成果获得日本化学会、日本催化协会奖，以及欧洲创新理事会地平线奖、国际催化协会Heinz Heinemann奖、科睿唯安引文桂冠奖等。迄今，在《Nature》、《Nat. Mater.》、《Nat. Energy》、《Nat. Cata.》、《J. Am. Chem. Soc.》、《Angew. Chem. Int. Ed.》、《Adv. Mater.》、《Energy Environ. Sci.》等国际期刊上发表光催化相关论文600余篇，被引用次数超过8万次，H指数127。担任多种重要国际期刊的编辑/顾问，如《Appl. Catal. A》、《ChemPhotoChem》、《Chem. Sci.》、《Joule》、《Energy Environ. Sci.》等。