The hydrogen evolution reaction in a room temperature ionic liquid: mechanism and electrocatalyst trends

Yao Meng; Leigh Aldous; Stephen R. Belding; Richard G. Compton

doi:10.1039/C2CP23801B

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The hydrogen evolution reaction in a room temperature ionic liquid: mechanism and electrocatalyst trends†

Yao Meng,^a Leigh Aldous,^ab Stephen R. Belding^a and Richard G. Compton*^a

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^a Department of Chemistry, Physical and Theoretical Chemistry Laboratory, University of Oxford, South Parks Road, Oxford OX1 3QZ, United Kingdom
E-mail: richard.compton@chem.ox.ac.uk
Fax: +44 (0) 1865 275 410
Tel: +44 (0) 1865 275 413

^b School of Chemistry, University of New South Wales, Sydney, Australia

Abstract

The kinetics and mechanism of the proton reduction reaction in the room temperature ionic liquid 1-ethyl-3-methylimidazolium bis(trifluoromethylsulfonyl)imide ([C₂mim][NTf₂]) was studied at gold, molybdenum, nickel, titanium and platinum electrodes. Significant differences in electrochemical rate constants were observed between the different metals and with the corresponding processes in aqueous solution. The hydrogen evolution mechanism was consistent at all five metals in the ionic liquid, in stark contrast to the known behaviour in aqueous systems.

This article is part of the themed collection: Interfaces of Ionic Liquids

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Article information

DOI: https://doi.org/10.1039/C2CP23801B
Article type: Paper
Submitted: 30 Nov 2011
Accepted: 09 Jan 2012
First published: 10 Jan 2012

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Phys. Chem. Chem. Phys., 2012,14, 5222-5228

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The hydrogen evolution reaction in a room temperature ionic liquid: mechanism and electrocatalyst trends

Y. Meng, L. Aldous, S. R. Belding and R. G. Compton, Phys. Chem. Chem. Phys., 2012, 14, 5222 DOI: 10.1039/C2CP23801B

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Physical Chemistry Chemical Physics

The hydrogen evolution reaction in a room temperature ionic liquid: mechanism and electrocatalyst trends†

Abstract

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The hydrogen evolution reaction in a room temperature ionic liquid: mechanism and electrocatalyst trends

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