Dissertation/Thesis Abstract

Synthesis of alkanethiolate-capped palladium nanoparticles generated from sodium S-dodecyl thiosulfate for isomerization of allyl alcohols
by Sadeghmoghaddam, Elham, M.S., California State University, Long Beach, 2012, 73; 1520926
Abstract (Summary)

This thesis presents a synthetic method for alkanethiolate-functionalized Pd nanoparticles that are efficient catalysts for the isomerization of various allyl alcohols to their corresponding carbonyl compounds. Pd nanoparticles are produced by the borohydride reduction of K2PdCl4 in toluene/H2O using sodium S-dodecylthiosulfate as a source for the stabilizing ligands. The monolayer-capped Pd nanoparticles from sodium S-dodecylthiosulfate are quite comparable in composition (dodecylthiolate) and core size with those previously prepared from dodecanethiol. However, the catalytic activity of Pd nanoparticles generated from S-dodecylthiosulfate is found to be significantly greater than that of Pd nanoparticles prepared from dodecanethiol. Furthermore, the mechanism of the catalytic reactions and the regioselectivity of Pd nanoparticles in different environments are studied by changing the amount of H2 gas, the type of solvent used for the catalytic reactions and the use of ligands with different chain length. Lastly, the high stability of homogeneous nanocatalysts is demonstrated by recycling dodecanethiolate-capped Pd nanoparticles over ten times for the isomerization reaction of allyl alcohol.

Indexing (document details)
Advisor: Shon, Young-Seok
Commitee: Bu, Xianhui, Maricich, Tom J.
School: California State University, Long Beach
Department: Chemistry
School Location: United States -- California
Source: MAI 51/03M(E), Masters Abstracts International
Subjects: Inorganic chemistry, Organic chemistry
Publication Number: 1520926
ISBN: 978-1-267-70323-1
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