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Development of graphitic-carbon nitride materials as catalyst supports for polymer electrolyte fuel cells

Mansor, N; Gibbs, C; Jervis, R; Brett, DJL; Jorge, AB; Corà, F; McMillan, PF; (2013) Development of graphitic-carbon nitride materials as catalyst supports for polymer electrolyte fuel cells. ECS Transactions , 58 (1) 1767 - 1778. 10.1149/05801.1767ecst.

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Abstract

Graphitic-carbon nitride materials (gCNM) are investigated for developing highly-durable catalyst supports for polymer electrolyte fuel cells (PEFCs). The gCNMs are more electrochemically stable compared to conventional carbon black (Vulcan XC-72) following accelerated corrosion testing. After 2000 scans, the gCNM shows a 133% increase in double-layer capacitance compared to 166% for Vulcan. Despite the low initial electrochemical surface area (ECSA), Pt/gCNM electrocatalyst exhibits improved durability over Pt/Vulcan, with 20.9% ECSA loss versus 41.0% for Pt/Vulcan after 1000 scans. Superior methanol oxidation activity is observed for Pt/gCNM on the basis of the catalyst ECSA. © The Electrochemical Society.

Type: Article
Title: Development of graphitic-carbon nitride materials as catalyst supports for polymer electrolyte fuel cells
DOI: 10.1149/05801.1767ecst
Publisher version: http://dx.doi.org/10.1149/05801.1767ecst
URI: http://discovery.ucl.ac.uk/id/eprint/1417533
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