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Photo-electrocatalytic hydrogen generation at dye-sensitised electrodes functionalised with a heterogeneous metal catalyst

Journal Article


Abstract


  • Dye-sensitised photocathodes promoting hydrogen evolution are usually coupled to a catalyst to improve the reaction rate. Herein, we report on the first successful integration of a heterogeneous metal particulate catalyst, viz., Pt aggregates electrodeposited from acidic solutions on the surface of a NiO-based photocathode sensitised with a p-type perylenemonoimid-sexithiophene-triphenylamine dye (PMI-6T-TPA). The platinised dye-NiO electrodes generate photocurrent density of ca -0.03 mA cm-2 (geom.) with 100% faradaic efficiency for the H2 evolution at 0.059 V vs. reversible hydrogen electrode under 1 sun visible light irradiation (AM1.5G, 100 mW cm-2, > 400 nm) for more than 10 hours in 0.1 M H2SO4 (aq.). The Pt-free dye-NiO and dye-free Pt-modified NiO cathodes show no photo-electrocatalytic hydrogen evolution under these conditions. The performance of these Pt-modified PMI-6T-TPA-based photoelectrodes compares well to that of previously reported dye-sensitised photocathodes for H2 evolution.

UOW Authors


  •   Hoogeveen, Dijon A. (external author)
  •   Fournier, Maxime (external author)
  •   Bonke, Shannon A. (external author)
  •   Fang, Xi-Ya (external author)
  •   Mozer, Attila
  •   Mishra, Amaresh (external author)
  •   Bäuerle, Peter (external author)
  •   Simonov, Alexandr N. (external author)
  •   Spiccia, Leone (external author)

Publication Date


  • 2016

Citation


  • Hoogeveen, D. A., Fournier, M., Bonke, S. A., Fang, X., Mozer, A. J., Mishra, A., Bäuerle, P., Simonov, A. N. & Spiccia, L. (2016). Photo-electrocatalytic hydrogen generation at dye-sensitised electrodes functionalised with a heterogeneous metal catalyst. Electrochimica Acta, 219 773-780.

Scopus Eid


  • 2-s2.0-84994242463

Ro Metadata Url


  • http://ro.uow.edu.au/aiimpapers/2270

Number Of Pages


  • 7

Start Page


  • 773

End Page


  • 780

Volume


  • 219

Abstract


  • Dye-sensitised photocathodes promoting hydrogen evolution are usually coupled to a catalyst to improve the reaction rate. Herein, we report on the first successful integration of a heterogeneous metal particulate catalyst, viz., Pt aggregates electrodeposited from acidic solutions on the surface of a NiO-based photocathode sensitised with a p-type perylenemonoimid-sexithiophene-triphenylamine dye (PMI-6T-TPA). The platinised dye-NiO electrodes generate photocurrent density of ca -0.03 mA cm-2 (geom.) with 100% faradaic efficiency for the H2 evolution at 0.059 V vs. reversible hydrogen electrode under 1 sun visible light irradiation (AM1.5G, 100 mW cm-2, > 400 nm) for more than 10 hours in 0.1 M H2SO4 (aq.). The Pt-free dye-NiO and dye-free Pt-modified NiO cathodes show no photo-electrocatalytic hydrogen evolution under these conditions. The performance of these Pt-modified PMI-6T-TPA-based photoelectrodes compares well to that of previously reported dye-sensitised photocathodes for H2 evolution.

UOW Authors


  •   Hoogeveen, Dijon A. (external author)
  •   Fournier, Maxime (external author)
  •   Bonke, Shannon A. (external author)
  •   Fang, Xi-Ya (external author)
  •   Mozer, Attila
  •   Mishra, Amaresh (external author)
  •   Bäuerle, Peter (external author)
  •   Simonov, Alexandr N. (external author)
  •   Spiccia, Leone (external author)

Publication Date


  • 2016

Citation


  • Hoogeveen, D. A., Fournier, M., Bonke, S. A., Fang, X., Mozer, A. J., Mishra, A., Bäuerle, P., Simonov, A. N. & Spiccia, L. (2016). Photo-electrocatalytic hydrogen generation at dye-sensitised electrodes functionalised with a heterogeneous metal catalyst. Electrochimica Acta, 219 773-780.

Scopus Eid


  • 2-s2.0-84994242463

Ro Metadata Url


  • http://ro.uow.edu.au/aiimpapers/2270

Number Of Pages


  • 7

Start Page


  • 773

End Page


  • 780

Volume


  • 219