1973
DOI: 10.1126/science.179.4075.798
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Abstract: There are fundamental differences in the behavior of alumina-supported samples of a platinum and a copper-chromium catalyst for oxidation of carbon monoxide in a simulated automotive exhaust stream. Ignoring such differences can result in inappropriate comparisons between oxidation catalysts for automotive application.

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Cited by 32 publications
(11 citation statements)
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“…Typically, a platinum catalyst is used in the monolith converter. The oxidation of carbon monoxide on platinum is generally agreed to be first order in oxy,cen and inversely proportional to carbon monoxide (Langmuir, 1922; Harned, 1972;Schlatter et al, 1973;Wei, 1975). The rate expression is negative order in carbon monoxide owing to the strong adsorption of carbon monoxide on platinum.…”
Section: Model Developmentmentioning
confidence: 99%
“…Typically, a platinum catalyst is used in the monolith converter. The oxidation of carbon monoxide on platinum is generally agreed to be first order in oxy,cen and inversely proportional to carbon monoxide (Langmuir, 1922; Harned, 1972;Schlatter et al, 1973;Wei, 1975). The rate expression is negative order in carbon monoxide owing to the strong adsorption of carbon monoxide on platinum.…”
Section: Model Developmentmentioning
confidence: 99%
“…[1][2][3] These adsorbed species can block surface active sites and cause catalyst deactivation. 4,5 For example, in the early 1970s perovskites including LaCoO 3 and LaMnO 3 were found to exhibit sufficient activity for CO and hydrocarbon oxidation to make them promising automotive emissions control catalysts, [6][7][8] but sensitivity to deactivation by reaction with SO 2 prevented practical application. 6,9 Today questions still remain about the factors that control the formation of surface poisons on metal oxides.…”
Section: Introductionmentioning
confidence: 99%
“…The different reaction mechanisms proposed for Pt-Rh and base-metal catalysts do not allow us to draw parallel kinetic models (Schlatter et al, 1973). In a crude approach, the major difference is the metallic character of the Pt-Rh system in comparison with the oxidized state of the base-metal systems.…”
Section: Introductionmentioning
confidence: 99%