Studies of size selected palladium and iridium model catalysts

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Title Studies of size selected palladium and iridium model catalysts
Publication Type dissertation
School or College College of Science
Department Chemistry
Author Kaden, William E
Date 2010-08
Description This dissertation describes size-dependent investigations of supported palladium and iridium clusters, used as model catalysts for carbon monoxide oxidation and hydrazine decomposition reactions. Chapter 1 provides an introduction into the role of size-dependent studies within the greater scope of catalysis research, with a primary focus on the changing nature of metal particles with size at the small scale (<25 atoms per particle), and the important role of support interactions in determining particle chemistry. An investigation of CO oxidation over TiO2 (110) supported Pdn particles (n = 1,2,4,7,10,16,20,25) via stepwise dosing and reacting protocols is given in Chapter 2, with experimental results showing a correlation between nonmonotonically varying cluster activities and their accompanying electronic properties as a function of size. In Chapter 3, the same catalyst-reaction system is studied as a function of surface temperature and total oxygen exposure during the oxygen dose, and is found to be limited by oxygen binding under the conditions investigated within the previous chapter.
Type Text
Publisher University of Utah
Subject Catalysis; CO-Oxidation; Iridium; Nanocluster; Palladium; Size-Selected
Subject LCSH Carbon monoxide -- Oxidation; Hydrazine -- Degradation; Iridium catalysts; Palladium catalysts
Dissertation Institution University of Utah
Dissertation Name PhD
Language eng
Rights Management ©William E. Kaden
Format application/pdf
Format Medium application/pdf
Format Extent 3,094,579 bytes
Source Original in Marriott Library Special Collections, QD3.5 2010 .K23
ARK ark:/87278/s6tq6g42
Setname ir_etd
ID 192983
Reference URL https://collections.lib.utah.edu/ark:/87278/s6tq6g42
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