Fabrication of Photosystem II-Molecular Wire Hybrid-Type Light Energy Conversion System

2014 Fiscal Year Final Research Report

• Project/Area Number: 23245029
• Research Category: Grant-in-Aid for Scientific Research (A)
• Allocation Type: Single-year Grants
• Section: 一般
• Research Field: Functional materials chemistry
• Research Institution: The University of Tokyo
• Principal Investigator: NISHIHARA Hiroshi 東京大学, 理学(系)研究科(研究院), 教授 (70156090)
• Co-Investigator(Renkei-kenkyūsha): MIYACHI Mariko 東京大学, 大学院理学系研究科, 特任助教 (60620820)
• Project Period (FY): 2011-04-01 – 2015-03-31
• Keywords: 白金 / ナノ粒子 / 光化学系Ｉ / 光化学系ＩＩ / 触媒 / 水素発生

Outline of Final Research Achievements

Molecular wire－Pt nanoparticle(PtNP) unit for PSI has been newly developed. This molecular wire can be exchanged with vitamin K1 in the quinone pocket of photosystem I (PSI). Similarly, molecular wire－PtNP unit for PSII was newly developed. PSI and PSII were reconstituted with these units. Photoinduced hydrogen evolution occurred with PSI-molecular wire－PtNP using sacrificial reagent. The molecular wire －PtNP unit was successfully introduced to PSII, however, Mn cluster was removed from PSII in the reconstitution process. In the achievement of water-splitting reaction with PSII-molecular wire－PtNP, reconstitution of the Mn cluster will be necessary.

Free Research Field

錯体化学、ナノテクノロジー、触媒、分子ワイヤ