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Volume 155, 2012
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Artificial leaf device for solar fuel production

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Abstract

Solar fuels, such as hydrogen gas produced from water and methanol produced from carbon dioxide reduction by artificial photosynthesis, have received considerable attention. In natural leaves the photosynthetic proteins are well-organized in the thylakoid membrane. To develop an artificial leaf device for solar low-carbon fuel production from CO2, a chlorophyll derivative chlorin-e6 (Chl-e6; photosensitizer), 1-carboxylundecanoyl-1′-methyl-4,4′-bipyrizinium bromide, iodide (CH3V(CH2)9COOH; the electron carrier) and formate dehydrogenase (FDH) (the catalyst) immobilised onto a silica-gel-based thin layer chromatography plate (the Chl-V-FDH device) was investigated. From luminescence spectroscopy measurements, the photoexcited triplet state of Chl-e6 was quenched by the CH3V(CH2)9COOH moiety on the device, indicating the photoinduced electron transfer from the photoexcited triplet state of Chl-e6 to the CH3V(CH2)9COOH moiety. When the CO2-saturated sample solution containing NADPH (the electron donor) was flowed onto the Chl-V-FDH device under visible light irradiation, the formic acid concentration increased with increasing irradiation time.

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Article information


Submitted
30 May 2011
Accepted
08 Jun 2011
First published
06 Jul 2011

Faraday Discuss., 2012,155, 289-296
Article type
Paper

Artificial leaf device for solar fuel production

Y. Amao, N. Shuto, K. Furuno, A. Obata, Y. Fuchino, K. Uemura, T. Kajino, T. Sekito, S. Iwai, Y. Miyamoto and M. Matsuda, Faraday Discuss., 2012, 155, 289
DOI: 10.1039/C1FD00097G

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