Jump to main content
Jump to site search

Issue 8, 2019
Previous Article Next Article

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

Article information


Submitted
26 Nov 2018
Accepted
26 Dec 2018
First published
27 Dec 2018

This article is Open Access
All publication charges for this article have been paid for by the Royal Society of Chemistry

Chem. Sci., 2019,10, 2308-2314
Article type
Edge Article

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, 10, 2308
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.


Social activity

Search articles by author

Spotlight

Advertisements