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Nanomaterials 2018, 8(6), 432; https://doi.org/10.3390/nano8060432 (registering DOI)

Carbon Nitride Materials as Efficient Catalyst Supports for Proton Exchange Membrane Water Electrolyzers

1
Materials Research Institute, School of Engineering and Materials Science, Queen Mary University of London, Mile End Rd, London E1 4NS, UK
2
Electrochemical Innovation Lab, Roberts Building, Department of Chemical Engineering, University College London, Torrington Place, London WC1E 7JE, UK
3
Christopher Ingold Building, Department of Chemistry, University College London, 20 Gordon Street, London WC1H 0AJ, UK
*
Author to whom correspondence should be addressed.
Received: 30 April 2018 / Revised: 7 June 2018 / Accepted: 10 June 2018 / Published: 13 June 2018
(This article belongs to the Special Issue Graphitic Carbon Nitride Nanostructures: Catalysis and Beyond)
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Abstract

Carbon nitride materials with graphitic to polymeric structures (gCNH) were investigated as catalyst supports for the proton exchange membrane (PEM) water electrolyzers using IrO2 nanoparticles as oxygen evolution electrocatalyst. Here, the performance of IrO2 nanoparticles formed and deposited in situ onto carbon nitride support for PEM water electrolysis was explored based on previous preliminary studies conducted in related systems. The results revealed that this preparation route catalyzed the decomposition of the carbon nitride to form a material with much lower N content. This resulted in a significant enhancement of the performance of the gCNH-IrO2 (or N-doped C-IrO2) electrocatalyst that was likely attributed to higher electrical conductivity of the N-doped carbon support. View Full-Text
Keywords: carbon nitride; electrocatalyst; support; water electrolyzer; oxygen evolution reaction; water oxidation carbon nitride; electrocatalyst; support; water electrolyzer; oxygen evolution reaction; water oxidation
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This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. (CC BY 4.0).

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Jorge, A.B.; Dedigama, I.; Miller, T.S.; Shearing, P.; Brett, D.J.L.; McMillan, P.F. Carbon Nitride Materials as Efficient Catalyst Supports for Proton Exchange Membrane Water Electrolyzers. Nanomaterials 2018, 8, 432.

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