The Surface Reaction Mechanisms of Beta-Diketones on Transition Metal Surfaces Including Applications to Metal Thermal Chemical Vapor Etching and Heterogeneous Catalyst Particle Redispersion

Investigation of the interactions of beta-diketones was also done on alumina and gamma-alumina supported Pd catalysts in an attempt to alter Pd particle dispersion. Low-temperature redispersion of a sintered 5% Pd/gamma-alumina catalyst was most successful via exposure to oxygen and acetylacetone at ∼560 K for 8 hours. A bimodal distribution of CO desorption states was achieved, at 405 K and 585 K, with more CO desorbing from the high-temperature state. This indicated a decrease in Pd particle size relative to the sintered and, to some extent, untreated catalyst samples. Surface mechanisms were not investigated in this particular study.

Name thesis:degree_name

Ph.D.

Level thesis:degree_level

Dissertation

Discipline thesis:degree_discipline

Chemical Engineering

Grantor

University of Illinois at Urbana-Champaign

Year dc:date

2015

Author dc:creator

• Nigg, Herbert Lee

Contributors dc:contributor

• Masel, Richard I.

• Engineering, Materials Science

Language dc:language

eng

Identifier

(MiAaPQ)AAI9921718

OAI identifier oai:identifier

oai:www.ideals.illinois.edu:2142/82465