Characterization of high-surface-area electrocatalysts using a rotating disk electrode configuration

T. J. Schmidt; H. A. Gasteiger; G. D. Stäb; P. M. Urban; D. M. Kolb; R. J. Behm

doi:10.1149/1.1838642

Characterization of high-surface-area electrocatalysts using a rotating disk electrode configuration

T. J. Schmidt, H. A. Gasteiger, G. D. Stäb, P. M. Urban, D. M. Kolb, R. J. Behm

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Abstract

A newly developed method is presented which allows the characterization of the electrocatalytic properties of highly dispersed electrocatalysts in a true rotating disk electrode (RDE) configuration by attaching the catalyst powder on a glassy carbon electrode via a thin Nafion film. Complete utilization and high reproducibility of both the electrode preparation and the catalyst loading could be shown via voltammetry and CO stripping voltammetry. Furthermore, RDE measurements on the electro-oxidation of hydrogen on Pt/Vulcan showed that the effect of diffusion through the Nafion film can be avoided by proper electrode preparation. Therefore, the electrode kinetics for fuel cell relevant reactions under continuous flow conditions can be measured directly without mathematical modeling.

Original language	English
Pages (from-to)	2354-2358
Number of pages	5
Journal	Journal of the Electrochemical Society
Volume	145
Issue number	7
DOIs	https://doi.org/10.1149/1.1838642
State	Published - Jul 1998
Externally published	Yes

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abstract = "A newly developed method is presented which allows the characterization of the electrocatalytic properties of highly dispersed electrocatalysts in a true rotating disk electrode (RDE) configuration by attaching the catalyst powder on a glassy carbon electrode via a thin Nafion film. Complete utilization and high reproducibility of both the electrode preparation and the catalyst loading could be shown via voltammetry and CO stripping voltammetry. Furthermore, RDE measurements on the electro-oxidation of hydrogen on Pt/Vulcan showed that the effect of diffusion through the Nafion film can be avoided by proper electrode preparation. Therefore, the electrode kinetics for fuel cell relevant reactions under continuous flow conditions can be measured directly without mathematical modeling.",

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AU - Schmidt, T. J.

AU - Gasteiger, H. A.

AU - Stäb, G. D.

AU - Urban, P. M.

AU - Kolb, D. M.

AU - Behm, R. J.

PY - 1998/7

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AB - A newly developed method is presented which allows the characterization of the electrocatalytic properties of highly dispersed electrocatalysts in a true rotating disk electrode (RDE) configuration by attaching the catalyst powder on a glassy carbon electrode via a thin Nafion film. Complete utilization and high reproducibility of both the electrode preparation and the catalyst loading could be shown via voltammetry and CO stripping voltammetry. Furthermore, RDE measurements on the electro-oxidation of hydrogen on Pt/Vulcan showed that the effect of diffusion through the Nafion film can be avoided by proper electrode preparation. Therefore, the electrode kinetics for fuel cell relevant reactions under continuous flow conditions can be measured directly without mathematical modeling.

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Characterization of high-surface-area electrocatalysts using a rotating disk electrode configuration

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