professor department of industrial chemistry …...2011/12/02 · title speaker dr. hironori...

Title Speaker Dr. Hironori ARAKAWA Professor Department of Industrial Chemistry Faculty of Engineering Tokyo University of Science Date & Time Friday, December 2, 2011 4:00p.m. Place Abstract About the Speaker Host Professor Tatsumi ISHIHARA For registration, please visit our website:http://i2cner.kyushu-u.ac.jp/ International Institute for Carbon-Neutral Energy Research Kyushu University CONTACT ： Research Support and International Affairs division International Institute for Carbon-Neutral Energy Research TEL:092-802-6934 Efficient Solar Hydrogen Production by Tandem Cell System Lecture room No.9, Open Learning Plaza, Ito campus, Kyushu University Hironori Arakawa is professor of Department of Industrial Chemistry, Faculty of Engineering at Tokyo University of Science. He received his Doctor Degree from Tokyo Institute of Technology in 1976. After this, he joined National Chemical Laboratory, Japan. Then, he moved to Tokyo University of Science (TUS) in 2004. He was the first Dean at Graduate School of Chemical Sciences and Technology at TUS. His research is concerned with solar energy utilization such as solar hydrogen production, dye-sensitized solar cells and CO2 hydrogenation. He received many awards such as Award of Japan Institute of Energy and The Best Paper Award of ISEC/ASME in USA. He is the author and co-author of over 280 peer-reviewed publications. Solar hydrogen production, water splitting into hydrogen and oxygen by solar light just like photosynthetic process, is a very attractive research subject in terms of clean hydrogen energy production using renewable energy. There are some approaches to solar hydrogen production such as a combination system of photovoltaics and water electrolysis, a photoelectrochemical cell system and powder photocatalyst system. Among them, tandem cell system composed of transparent oxide semiconductor photoelectrode for oxygen production and dye-sensitized photoelectrode for hydrogen production is an efficient and cost-effective way for solar hydrogen production. It is possible to obtain about 5% solar to hydrogen energy conversion efficiency at this moment. In this presentation, our approach using TiO₂, WO₃ and α-Fe₂O₃ photoelectrodes as well as world trends in tandem-cell-driven solar hydrogen production will be introduced.

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Title

Speaker Dr. Hironori ARAKAWA Professor

Department of Industrial Chemistry Faculty of EngineeringTokyo University of Science

Date & Time Friday, December 2, 2011 4:00p.m.

Place

Abstract

About the Speaker

Host Professor Tatsumi ISHIHARAFor registration, please visit our website:http://i2cner.kyushu-u.ac.jp/

International Institute for Carbon-Neutral Energy ResearchKyushu University

CONTACT：Research Support and International Affairs division International Institute for Carbon-Neutral Energy Research TEL:092-802-6934

Efficient Solar Hydrogen Production by Tandem Cell System

Lecture room No.9, Open Learning Plaza, Ito campus, Kyushu University

Hironori Arakawa is professor of Department of Industrial Chemistry, Faculty of Engineering at Tokyo University of

Science. He received his Doctor Degree from Tokyo Institute of Technology in 1976. After this, he joined National

Chemical Laboratory, Japan. Then, he moved to Tokyo University of Science (TUS) in 2004. He was the first Dean at

Graduate School of Chemical Sciences and Technology at TUS. His research is concerned with solar energy utilization such

as solar hydrogen production, dye-sensitized solar cells and CO2 hydrogenation. He received many awards such as Award

of Japan Institute of Energy and The Best Paper Award of ISEC/ASME in USA. He is the author and co-author of over 280

peer-reviewed publications.

Solar hydrogen production, water splitting into hydrogen and oxygen by solar light just like photosynthetic process, is a

very attractive research subject in terms of clean hydrogen energy production using renewable energy. There are some

approaches to solar hydrogen production such as a combination system of photovoltaics and water electrolysis, a

photoelectrochemical cell system and powder photocatalyst system. Among them, tandem cell system composed of

transparent oxide semiconductor photoelectrode for oxygen production and dye-sensitized photoelectrode for hydrogen

production is an efficient and cost-effective way for solar hydrogen production. It is possible to obtain about 5% solar to

hydrogen energy conversion efficiency at this moment. In this presentation, our approach using TiO₂, WO₃ and α-Fe₂O₃

photoelectrodes as well as world trends in tandem-cell-driven solar hydrogen production will be introduced.

Hironori ABE - tsu.ac.jp

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