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Title:Metal Oxide-Modified Metal Nanoparticles: Synthesis, Characterization, and Catalytic Behavior
Author(s):Flynn, Nolan Thomas
Doctoral Committee Chair(s):Gewirth, Andrew A.
Department / Program:Chemistry
Discipline:Chemistry
Degree Granting Institution:University of Illinois at Urbana-Champaign
Degree:Ph.D.
Genre:Dissertation
Subject(s):Engineering, Materials Science
Abstract:To explore surface enhancement effects in Raman spectroscopy, colloidal gold particles (11.2 nm) were coated with platinum overlayers resulting in bimetallic particles with 1--8 mole percentage Pt. These particles were characterized using electron microscopy, energy-dispersive X-ray spectroscopy and electrochemistry, confirming the Au-Pt core-shell structure. The UV-visible spectra showed only minimal red shifts with increasing Pt content. Raman spectra, on the other hand, changed dramatically with slight increases in Pt, resulting in a loss of appreciable surface-enhancement effects by 4 mole percent Pt.
Issue Date:2001
Type:Text
Language:English
Description:150 p.
Thesis (Ph.D.)--University of Illinois at Urbana-Champaign, 2001.
URI:http://hdl.handle.net/2142/84037
Other Identifier(s):(MiAaPQ)AAI3023058
Date Available in IDEALS:2015-09-25
Date Deposited:2001


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