Scanning tunneling microscopy of electrochemically activated platinum surfaces. A direct ex-situ determination of the electrode nanotopography
Journal of the American Chemical Society1987Vol. 109(6), pp. 1730–1733
Citations Over TimeTop 1% of 1987 papers
L. Vázquez, J. Gomez, A. M. Baró, N. Garcia, M.L. Marcos, Jaime González Velasco, J. M. Vara, A.J. Arvía, J. Presa
Abstract
A direct scanning tunneling microscopy ex-situ determination on the nanometer scale of the topography of electrochemically highly activated platinum electrodes is presented. A correlation between catalytic activity and surface microtopography becomes evident. This result gives support to a structural model for the activated electrode surface. In the model, a volume with a pebble-like structure allows electrocatalytic processes to occur practically free of diffusion relaxation contributions under usual voltammetric conditions.
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