Oxidation of Carbon Monoxide Over Ceria and Alumina Supported Palladium Catalysts
type: CreativeWork
description: Palladium catalysts on both Al2O3 and CeO2, supports were studied for efficacy in low temperature carbon monoxide oxidation. Calcination temperatures were varied between 500-900°C for alumina supported catalysts and shown to have no significant difference in activity. X-Ray Photoelectron Spectroscopy studies revealed structural changes associated with palladium states and reacted catalysts and displayed a change from palladium oxide (PdO) to native palladium oxide (PdOx) and elemental palladium (Pd). Activity studies were conducted on all catalysts synthesized and indicated that Pd/Al2O3 achieved 100% CO conversion at 150°C when calcined at 500°C and pretreated with reduction process. Pd/CeO2 showed higher activity and achieved 100% CO conversion at 80°C. Stochiometric mixtures of CO and O2 as well as excess oxygen resulted in higher conversion CO.
abstract: Palladium catalysts on both Al2O3 and CeO2, supports were studied for efficacy in low temperature carbon monoxide oxidation. Calcination temperatures were varied between 500-900°C for alumina supported catalysts and shown to have no significant difference in activity. X-Ray Photoelectron Spectroscopy studies revealed structural changes associated with palladium states and reacted catalysts and displayed a change from palladium oxide (PdO) to native palladium oxide (PdOx) and elemental palladium (Pd). Activity studies were conducted on all catalysts synthesized and indicated that Pd/Al2O3 achieved 100% CO conversion at 150°C when calcined at 500°C and pretreated with reduction process. Pd/CeO2 showed higher activity and achieved 100% CO conversion at 80°C. Stochiometric mixtures of CO and O2 as well as excess oxygen resulted in higher conversion CO.
author: Gary, John Davis
language: English
keywords: Palladium Catalysts, Al2O3, CeO2, Efficacy, Palladium Oxide, PdO, Chemistry, Inorganic Chemistry
date published: 2018-12-01T08:00:00Z
date modified: 2026-07-24T01:45:01Z
provider: Columbus State University
publisher: Networked Digital Library of Theses and Dissertations
type: WebPage
source organization: Columbus State University