The paper of Prof. Ken Sakai was published in "Physical Chemistry Chemical Physics(PCCP)."

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The paper of Prof. Ken Sakai (Principal Investigator, Hydrogen Production Research DivisionI²CNER) and his group was published in “Physical Chemistry Chemical Physics(PCCP)” on November 15, 2013.


■ Outline

Hydrogen energy has been considered as one of the promising alternatives to fossil fuels as a clean and renewable energy source. Especially, solar driven water splitting into H2 and O2 based on both heterogeneous1 and homogeneous2 photocatalysis has attracted great attention for many years. Recently, focus has increased on development of hybrid heterogeneous/homogeneous systems.2c,2h,3 As well discussed by many researchers,1,2 important targets involve (i) molecular devices capable of driving photoinduced oxidation of water to O2 in order to provide high-energy electrons together with (ii)molecular devices capable of driving photoinduced proton reduction to H2 by combining protons and electrons generated by the water oxidation cycle. The present study focuses on the latter issue. As depicted in Scheme 1, we define photo-hydrogen-evolving molecular devices (PHEMDs) as those capable of driving photoinduced proton reduction to H2 in the presence of a sacrificial electron donor (D), such as EDTA, TEA, TEOA, ascorbate, etc.


■ Paper


Mechanistic Studies of Photoinduced Intramolecular and Intermolecular Electron Transfer Processes in RuPt-centred Photo-hydrogen-evolving Molecular Devices (PDF)

Authors: Chettiyam Veettil Suneesh, Bijitha Balan, Hironobu Ozawa, Yuki Nakamura,
Tetsuro Katayama, Masayasu Muramatsu, Yutaka Nagasawa, Hiroshi Miyasaka, and Ken Sakai
DOI: 10.1039/C3CP54630F

Publication Date(online): Nov.15, 2013