ISSN:
1588-2837
Source:
Springer Online Journal Archives 1860-2000
Topics:
Chemistry and Pharmacology
Notes:
Abstract The oxidation of ferrous sulfate with dioxygen, an example of an inorganic redox process in aqueous phase, has been studied on a number of carbon-supported Pd and Pt catalysts, both freshly reduced and kept for a long time after contacting with air. In the whole range of metal dispersities studied (0.10–0.75, as determined by CO chemisorption) a several-fold gradual loss of intrinsic activity has been found when increasing the dispersity. Such a decrease appeared sufficient to present volcanotype plots for the corresponding activities on a per-gram basis. It has been concluded that the metal particle size and oxidation state of the metallic surface are two independently acting factors which affect the intrinsic rate.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1007/BF02067812