Jump to main content
Jump to site search


Electrocatalytic hydrogen evolution with gallium hydride and ligand-centered reduction

Author affiliations

Abstract

GaIII chloride tetrakis(pentafluorophenyl)porphyrin (1) was synthesized and shown to be a highly active and stable post-transition metal-based electrocatalyst for the hydrogen evolution reaction (HER). Electrochemical and spectroscopic studies indicate that both the first and second reduction events of 1 are ligand-centered. The 2e-reduced form 12− reacts with a proton to give GaIII–H species (1–H), which undergoes protonolysis with Brønsted acids to produce H2. The identification of key intermediates 1, 12−, and 1–H leads to a catalytic cycle, which is valuable for the fundamental understanding of the HER. This study presents a rare but highly active HER electrocatalyst with unusual features, including ligand-centered electron transfer and formation of post-transition metal hydride.

Graphical abstract: Electrocatalytic hydrogen evolution with gallium hydride and ligand-centered reduction

Back to tab navigation

Supplementary files

Publication details

The article was received on 26 Nov 2018, accepted on 26 Dec 2018 and first published on 27 Dec 2018


Article type: Edge Article
DOI: 10.1039/C8SC05247F
Citation: Chem. Sci., 2019, Advance Article
  • Open access: Creative Commons BY license
  •   Request permissions

    Electrocatalytic hydrogen evolution with gallium hydride and ligand-centered reduction

    N. Wang, H. Lei, Z. Zhang, J. Li, W. Zhang and R. Cao, Chem. Sci., 2019, Advance Article , DOI: 10.1039/C8SC05247F

    This article is licensed under a Creative Commons Attribution 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.

    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