Photogeneration of hydrogen from water by a robust dye-sensitized photocathode

B. Shan, A. K. Das, S. Marquard, B. H. Farnum, D. Wang, R Morris Bullock, T. J. Meyer

Research output: Contribution to journalArticle

32 Citations (Scopus)

Abstract

We report here on a photocathode with a "donor-dye-catalyst" assembly on a macro-mesoporous metal oxide for water reduction. The photoelectrocatalytic performance of the photocathode under mild conditions, with a photocurrent density of -56 μA cm-2 and a Faradaic yield of 53%, is superior relative to other reported photocathodes with surface attached molecular catalysts. Detailed electron transfer analyses show that the successful application of this photocathode originates mainly from the slow back electron transfer following light excitation. The results also demonstrate that addition of the long-chain assembly to the macro-mesoporous electrode surface plays a fundamental role in providing sufficient catalyst for water reduction.

Original languageEnglish
Pages (from-to)3693-3697
Number of pages5
JournalEnergy and Environmental Science
Volume9
Issue number12
DOIs
Publication statusPublished - Dec 1 2016

Fingerprint

Photocathodes
Hydrogen
dye
Coloring Agents
Dyes
catalyst
hydrogen
Water
Catalysts
Macros
electron
water
Electrons
electrode
Photocurrents
Oxides
Metals
Electrodes

ASJC Scopus subject areas

  • Environmental Chemistry
  • Renewable Energy, Sustainability and the Environment
  • Nuclear Energy and Engineering
  • Pollution

Cite this

Photogeneration of hydrogen from water by a robust dye-sensitized photocathode. / Shan, B.; Das, A. K.; Marquard, S.; Farnum, B. H.; Wang, D.; Bullock, R Morris; Meyer, T. J.

In: Energy and Environmental Science, Vol. 9, No. 12, 01.12.2016, p. 3693-3697.

Research output: Contribution to journalArticle

Shan, B, Das, AK, Marquard, S, Farnum, BH, Wang, D, Bullock, RM & Meyer, TJ 2016, 'Photogeneration of hydrogen from water by a robust dye-sensitized photocathode', Energy and Environmental Science, vol. 9, no. 12, pp. 3693-3697. https://doi.org/10.1039/c6ee02903e
Shan, B. ; Das, A. K. ; Marquard, S. ; Farnum, B. H. ; Wang, D. ; Bullock, R Morris ; Meyer, T. J. / Photogeneration of hydrogen from water by a robust dye-sensitized photocathode. In: Energy and Environmental Science. 2016 ; Vol. 9, No. 12. pp. 3693-3697.
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