Imperial College London
Alternate

ProfessorCeciliaMattevi

Faculty of Engineering, Department of Materials

Professor of Materials Science
 
 
 
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Contact

 

+44 (0)20 7594 0833c.mattevi

 
 
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Location

 

2.11Royal School of MinesSouth Kensington Campus

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Summary

 

Publications

Citation

BibTex format

@article{Suter:2021:10.3390/nano11102530,
author = {Suter, TAM and Clancy, AJ and Rubio, Carrero N and Heitzmann, M and Guetaz, L and Shearing, PR and Mattevi, C and Gebel, G and Howard, CA and Shaffer, MSP and McMillan, PF and Brett, DJL},
doi = {10.3390/nano11102530},
journal = {Nanomaterials},
pages = {1--13},
title = {Scalable sacrificial templating to increase porosity and platinum utilisation in graphene-based polymer electrolyte fuel cell electrodes},
url = {http://dx.doi.org/10.3390/nano11102530},
volume = {11},
year = {2021}
}
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RIS format (EndNote, RefMan)

TY  - JOUR
AB  - Polymer electrolyte fuel cells hold great promise for a range of applications but require advances in durability for widespread commercial uptake. Corrosion of the carbon support is one of the main degradation pathways; hence, corrosion-resilient graphene has been widely suggested as an alternative to traditional carbon black. However, the performance of bulk graphene-based electrodes is typically lower than that of commercial carbon black due to their stacking effects. This article reports a simple, scalable and non-destructive method through which the pore structure and platinum utilisation of graphene-based membrane electrode assemblies can be significantly improved. Urea is incorporated into the catalyst ink before deposition, and is then simply removed from the catalyst layer after spraying by submerging the electrode in water. This additive hinders graphene restacking and increases porosity, resulting in a significant increase in Pt utilisation and current density. This technique does not require harsh template etching and it represents a pathway to significantly improve graphene-based electrodes by introducing hierarchical porosity using scalable liquid processes.
AU  - Suter,TAM
AU  - Clancy,AJ
AU  - Rubio,Carrero N
AU  - Heitzmann,M
AU  - Guetaz,L
AU  - Shearing,PR
AU  - Mattevi,C
AU  - Gebel,G
AU  - Howard,CA
AU  - Shaffer,MSP
AU  - McMillan,PF
AU  - Brett,DJL
DO  - 10.3390/nano11102530
EP  - 13
PY  - 2021///
SN  - 2079-4991
SP  - 1
TI  - Scalable sacrificial templating to increase porosity and platinum utilisation in graphene-based polymer electrolyte fuel cell electrodes
T2  - Nanomaterials
UR  - http://dx.doi.org/10.3390/nano11102530
UR  - https://www.mdpi.com/2079-4991/11/10/2530
UR  - http://hdl.handle.net/10044/1/92186
VL  - 11
ER  -
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