Jump to main content
Jump to site search
Access to RSC content Close the message box

Continue to access RSC content when you are not at your institution. Follow our step-by-step guide.



Realising the Electrochemical Stability of Graphene: Scalable Synthesis of Ultra-durable Platinum Catalyst for the Oxygen Reduction Reaction

Abstract

Creating effective and stable catalyst nanoparticle-coated electrodes that can withstand extensive cycling is a current roadblock in realising the potential of polymer electrolyte membrane fuel cells. Graphene has been proposed as an ideal electrode support material due to its corrosion resistance, high surface area and high conductivity. However, to date, graphene-based electrodes suffer from high defect concentrations and non-uniform nanoparticle coverage that negatively affects performance; moreover production methods are difficult to scale. Herein we describe a scalable synthesis for Pt nanoparticle-coated graphene whereby PtCl2 is reduced directly by negatively charged single layer graphene sheets in solution. The resultant nanoparticles are of optimal dimensions and can be uniformly dispersed, resulting in high catalytic activity and remarkable stability, showing much smaller decrease in electrochemical surface area compared with an optimised commercial catalyst over 30,000 cycles. The stability is rationalised by identical location TEM which shows minimal nanoparticle agglomeration and no nanoparticle detachment.

Back to tab navigation

Supplementary files

Article information


Submitted
28 Apr 2020
Accepted
27 Jun 2020
First published
29 Jun 2020

This article is Open Access

Nanoscale, 2020, Accepted Manuscript
Article type
Paper

Realising the Electrochemical Stability of Graphene: Scalable Synthesis of Ultra-durable Platinum Catalyst for the Oxygen Reduction Reaction

G. M. A. Angel, N. Mansor, R. Jervis, Z. Rana, C. Gibbs, A. Seel, A. F. R. Kilpatrick, P. Shearing, C. A. Howard, D. Brett and P. Cullen, Nanoscale, 2020, Accepted Manuscript , DOI: 10.1039/D0NR03326J

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.


Social activity

Search articles by author

Spotlight

Advertisements