A photochemical hydrogen evolution system combining cyanobacterial photosystem I and platinum nanoparticle-terminated molecular wires

Mariko Miyachi, Kyoko Okuzono, Daiki Nishiori, Yoshinori Yamanoi, Tatsuya Tomo, Masako Iwai, Suleyman Allakhverdiev, Hiroshi Nishihara

Research output: Contribution to journalArticle

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Abstract

A H2 generation system based on the cyanobacterial photosystem I (PSI) reconstituted with 1,4-naphthoquinone-stabilized Pt nanoparticles (PtNPs) was constructed. Irradiating the system with red light (680 nm) and using sodium L(+)-ascorbate as the sacrificial electron donor generated H2, which was detected by GC. The light-induced H2 generation was observed at a maximum rate of 0.026 mol H2 h11 (mol PSI)11 using 2,6-dichloroindophenol (DCIP) as the mediator. The H2 evolution was increased to 0.053 mol H2 h11 (mol PSI)11 in the presence of cytochrome c (cyt c) as the mediator.

Original languageEnglish
Pages (from-to)1479-1481
Number of pages3
JournalChemistry Letters
Volume46
Issue number10
DOIs
Publication statusPublished - Jan 1 2017
Externally publishedYes

Keywords

  • Hydrogen generation
  • Photosystem I
  • Platinum nanoparticle

ASJC Scopus subject areas

  • Chemistry(all)

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  • Cite this

    Miyachi, M., Okuzono, K., Nishiori, D., Yamanoi, Y., Tomo, T., Iwai, M., Allakhverdiev, S., & Nishihara, H. (2017). A photochemical hydrogen evolution system combining cyanobacterial photosystem I and platinum nanoparticle-terminated molecular wires. Chemistry Letters, 46(10), 1479-1481. https://doi.org/10.1246/cl.170576