Unbound MEDLINE

Artificial leaf device for solar fuel production.

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.

Links

  • Aggregator Full Text
  • Authors

    Amao Y, Shuto N, Furuno K, Obata A, Fuchino Y, Uemura K, Kajino T, Sekito T, Iwai S, Miyamoto Y, Matsuda M

    Institution

    Department of Applied Chemistry, Oita University, Dannoharu 700, Oita, 870-1192, Japan. amao@oita-u.ac.jp

    Source

    Faraday discussions 155: 2012 pg 289-96; discussion 297-308

    MeSH

    Bioelectric Energy Sources
    Biofuels
    Biomimetic Materials
    Carbon Dioxide
    Chlorophyll
    Electron Transport
    Formate Dehydrogenases
    Formic Acids
    Green Chemistry Technology
    Hydrogen
    Light
    NADP
    Oxidation-Reduction
    Photochemistry
    Photosensitizing Agents
    Photosynthesis
    Plant Leaves
    Porphyrins
    Silica Gel
    Solar Energy
    Thylakoids

    Pub Type(s)

    Journal Article

    Language

    eng

    PubMed ID

    22470981