Metal Oxide-Modified Metal Nanoparticles: Synthesis, Characterization, and Catalytic Behavior

Flynn, Nolan Thomas

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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