Jump to main content
Jump to site search


The illusive photocatalytic water splitting reaction using sun light on suspended nanoparticles. Is there a way forward?

Abstract

For many decades hydrogen production by photocatalytic methods have been pursued over a variety of semiconductors with probably over a thousand formulations of powder catalysts in many structures and compositions. Yet, with the exception of a few reports, water splitting to molecular hydrogen and oxygen has stayed illusive. The only reproducible results are those involving other additives to water: electron donors or acceptors yielding either hydrogen or oxygen, but not both. The consequence of this is a system unrelated to water splitting but simply driven by the organic or inorganic redox potential. One may argue that thermodynamic limitations indicate that an inorganic semiconductor with a band gap within the spectrum of sun light, and is stable in water, cannot split water. Otherwise, it would not have existed on earth.

Back to tab navigation

Publication details

The article was received on 07 Sep 2019, accepted on 21 Nov 2019 and first published on 22 Nov 2019


Article type: Perspective
DOI: 10.1039/C9CY01818B
Catal. Sci. Technol., 2019, Accepted Manuscript
  • Open access: Creative Commons BY-NC license
  •   Request permissions

    The illusive photocatalytic water splitting reaction using sun light on suspended nanoparticles. Is there a way forward?

    H. Idriss, Catal. Sci. Technol., 2019, Accepted Manuscript , DOI: 10.1039/C9CY01818B

    This article is licensed under a Creative Commons Attribution-NonCommercial 3.0 Unported Licence. Material from this article can be used in other publications provided that the correct acknowledgement is given with the reproduced material and it is not used for commercial purposes.

    Reproduced material should be attributed as follows:

    • For reproduction of material from NJC:
      [Original citation] - Published by The Royal Society of Chemistry (RSC) on behalf of the Centre National de la Recherche Scientifique (CNRS) and the RSC.
    • For reproduction of material from PCCP:
      [Original citation] - Published by the PCCP Owner Societies.
    • For reproduction of material from PPS:
      [Original citation] - Published by The Royal Society of Chemistry (RSC) on behalf of the European Society for Photobiology, the European Photochemistry Association, and RSC.
    • For reproduction of material from all other RSC journals:
      [Original citation] - Published by The Royal Society of Chemistry.

    Information about reproducing material from RSC articles with different licences is available on our Permission Requests page.

Search articles by author

Spotlight

Advertisements