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Coarsening kinetics of platinum particles on curved oxide substrates

✍ Scribed by Tae-Moon Ahn; John K. Tien; Paul Wynblatt

Book ID
113176172
Publisher
Elsevier Science
Year
1980
Tongue
English
Weight
964 KB
Volume
66
Category
Article
ISSN
0021-9517

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πŸ“œ SIMILAR VOLUMES

Coarsening kinetics of platinum particle
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✍ T.-M. Ahn; P. Wynblatt; J.K. Tien πŸ“‚ Article πŸ“… 1981 πŸ› Elsevier Science βš– 893 KB

The growth of platinum particles supported on flat alumina substrates, at 900-I loo"C, has been studied for particles ranging in size from 35-120nm. While the observed kinetics of growth were found to be inconsistant with classical (LSW) coarsening models, a reasonable interpretation of the results

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Ah&act-The cathodic V log i curves for On reduction on oxide-free Pt electrodes were determined in oxygen-saturated purhied acid (HClO,, pH l-3) and alkaline (NaOH, pH 13) solutions. It was found that aV/aiogi = -2.3RTlF, .ayalOgp,, = -23RTlF and W/a pH = -100 mV. Coverage of electrodes by oxy gama