报告题目：Photocatalytic Splitting of Water into Molecular Hydrogen
and Oxygen
报 告 人 ：佟振合教授
报告时间：2017年11月14日（周二）下午16:00
报告地点：化学楼二楼一号会议室
邀 请 人 ：解孝林教授、王锋副教授
报告人简介：
佟振合，有机化学家、中国科学院院士。1963年毕业于中国科技大学化学系，1983年获美国哥伦比亚大学博士学位，1999年当选为中国科学院院士。现为中国科学院理化技术研究所研究员、学术委员会主任、中国化学会光化学委员会主任、亚洲光化学会理事以及《Photochem. and Photobiol.》、《J. Photochem. Photobiol. C: Photochem. Rev.》、《J. Phys. Org. Chem.》等刊物的国际编委。多年从事超分子体系中的光诱导能量传递、电子转移和化学转换的研究，在微反应器控制的光化学反应的选择性、超分子体系中的电子转移和能量传递、光催化分解水制氢、光催化活化惰性化学键等方面进行了系统研究，取得一系列创新性成果。已在国内外核心刊物Acc. Chem. Res.、J. Am. Chem. Soc.、Angew. Chem. Int. Ed.等发表论文四百余篇。1992年荣获中国科学院自然科学奖二等奖（第一完成人），2003年荣获何梁何利基金科学与技术进步奖，2005年荣获国家自然科学奖二等奖（第一完成人），2008年荣获亚洲及大洋洲光化学学会成就奖，2010年荣获中国化学会-中国石油化工股份有限公司化学贡献奖。
报告内容简介：
One of the best solutions for meeting future energy demands is the conversion of water into hydrogen fuel using solar energy. The splitting of water into molecular hydrogen (H2) and oxygen (O2) using light involves two half-reactions: the reduction of protons to H2 and the oxidation of water to O2. To take advantage of the full range of the solar spectrum, researchers have extensively investigated artificial photosynthesis systems consisting of two photosensitizers and two catalysts with a Z-configuration: one photosensitizer-catalyst pair for H2 evolution and the other for O2 evolution. This report reviews advances our laboratory has made in the development of new systems for photocatalytic splitting of water that use earth-abundant materials and is both efficient and durable. We constructed several assemblies of CdTe and CdSe QDs as photosensitizers with [FeFe]-H2ase mimics as catalysts. These assemblies produced H2 in aqueous solutions photocatalytically and efficiently, with turnover numbers (TONs) up to hundreds of thousands. Assemblies of 3-mercaptopropionic acid (MPA)-capped CdTe Qds with Co2+ ions formed Coh-CdTe hollow nanospheres, and (MPA)-capped-CdSe Qds with Ni+ ions produced Nih-CdSe/CdS core/shell hybrid in situ in aqueous solutions upon irradiation. The resulting photocatalytic systems proved robust for H2 evolution. These systems showed excellent activity and impressive durability in the photocatalytic reaction, suggesting that they can serve as a valuable part of an overall water splitting system. We also constructed several systems for photocatalytic oxidation of water to O2. Overall water splitting was achieved in our laboratory.
