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演講快訊
Photocatalytic water splitting: quantitative approach
[2019/10/07]
教務
Photocatalytic water splitting: quantitative approach

Seminar Date/Time

 Monday, October07, 2019 at 10.10 Am      hosted by林家裕教授

                                                               posted by:陳菊英助教

Speaker

 Prof. Kazuhiro Takanabe

 

Affiliation

 Department of Chemical System Engineering, School of Engineering, The University of Tokyo

 

Seminar Title

 Photocatalytic water splitting: quantitative approach

 

Location

 創意講堂

 

Language

 English

 

Abstract

Photocatalytic water splitting reaction, when successful, requires photon, water and photocatalyst to produce hydrogen and oxygen in a single reactor. To achieve efficient photocatalytic water splitting, all the parameters involved at different temporal and spatial resolutions should be optimized because the overall efficiency is obtained as the multiplication of all these fundamental efficiencies. The concept refers to making quantitative descriptions of the associated physical and chemical properties to determine which events/parameters have the most impact on improving the overall photocatalytic performance, in contrast to arbitrarily ranking different photocatalyst materials. First, the properties that can be quantitatively measured or calculated are identified. Secondly, the quantities of these identified properties are determined by performing adequate measurements and/or calculations. Thirdly, the obtained values of these properties are integrated into equations so that the kinetic/energetic bottlenecks of specific properties/processes can be determined, and the properties can then be altered to further improve the process. Accumulation of knowledge ranging in fields from solid-state physics to electrochemistry and the use of a multidisciplinary approach to conduct measurements and modeling in a quantitative manner are required to fully understand and improve the efficiency of photocatalysis.

 

Education/Work Experience

Prof. Kazuhiro Takanabe is Professor in the Department of Chemical System Engineering at The University of Tokyo. He previously worked at King Abdullah University of Science and Technology (KAUST) from 2010 to 2018. Before he joined KAUST, he was Assistant Professor in the Department of Chemical Systems Engineering at the University of Tokyo (2008-2010). Upon receipt of his doctoral degree in engineering from the Tokyo Institute of Technology in 2006, he served as a Postdoctoral Fellow at the University of California at Berkeley from 2006-2008. During his doctoral study, Prof. Takanabe studied at the University of Twente in the Netherlands as an exchange student (2002-2004). He is currently Editor of the Journal of Catalysis since September 2017.

 


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