Metal loading effects on carbon-supported Pd electrocatalysts
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Data
2018-09-13
Autores
Ciapina, E. G. [UNESP]
Viana, L. B. [UNESP]
Santos, R. M.I.S. [UNESP]
Nogueira, M. S.M. [UNESP]
Almeida-JĂșnior, O. P. [UNESP]
Nunes, R. S. [UNESP]
Santos, S. F.
Nakazato, R. Z. [UNESP]
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Resumo
We report for the first time effects of altering the amount of Pd supported on high-surface area carbon (Pd/C). Cyclic voltammetry in 0.1 M H2SO4 using Pd/C electrocatalysts with distinct metal-to-carbon ratio, Pd black and a Pd wire electrodes reveals unambiguously metal loading effects, such as a decrease in the peak potential for the reduction of palladium oxide (PdO), an increase of the charges of desorption of hydrogen, and formation/reduction of PdO with the Pd content. Such effects need to be taken into account when designing Pd-based Fuel Cells electrocatalysts.
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Palavras-chave
Carbon, Cyclic voltammetry, Electrocatalysts, Metal loading, Palladium
Como citar
International Journal of Hydrogen Energy, v. 43, n. 37, p. 17748-17752, 2018.