Characterization of nitric acid functionalized carbon black and its evaluation as electrocatalyst support for direct methanol fuel cell applications
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Applied Catalysis A: General
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This study presents results on PtRu electrocatalysts supported on both as received and functionalized
carbon black. The electrochemical properties of both home-made and commercial PtRu electrocatalysts
were compared to PtRu supported on functionalized carbon black. The PtRu nanoparticles were
synthesized by the impregnation method and subsequent alcohol reduction. Transmission electron
microscopy experiments revealed that the PtRu electrocatalysts supported on functionalized carbon
black are more homogeneously distributed than all other studied materials. Cyclic voltammetric
electrocatalyst curves experiments showed higher activity for the PtRu supported on functionalized
carbon black. This enhanced performance is related to the better nanoparticle distribution on
functionalized carbon black. The better performance can also be inferred by the better nanoparticles
utilization. The nanoparticles are now located outside from the pore structure of the carbon black. Hence,
the nanoparticles are more exposed and available to the reactants, enhancing the catalyst performance
and avoiding the waste of noble catalysts.
Como referenciar
CARMO, MARCELO; LINARDI, MARCELO; POCO, JOÃO G.R. Characterization of nitric acid functionalized carbon black and its evaluation as electrocatalyst support for direct methanol fuel cell applications. Applied Catalysis A: General, v. 355, n. 1-2, p. 132-138, 2009. DOI: 10.1016/j.apcata.2008.12.010. Disponível em: http://repositorio.ipen.br/handle/123456789/4763. Acesso em: 30 Dec 2025.
Esta referência é gerada automaticamente de acordo com as normas do estilo IPEN/SP (ABNT NBR 6023) e recomenda-se uma verificação final e ajustes caso necessário.