Degree Type

Thesis

Date of Award

2008

Degree Name

Master of Science

Department

Chemical and Biological Engineering

First Advisor

Eric W. Cochran

Second Advisor

Kurt R. Hebert

Abstract

Current polymer electrolyte membrane fuel cell (PEMFC) catalyst layers are disordered blends of carbon-supported platinum catalyst in an ionomeric matrix. The objective of this research was to design preliminary materials for a self-assembling Pt/SWNT/block copolymer catalyst nanocomposite system for use in a PEMFC catalyst layer. Initial work toward this goal was conducted. Platinum nanoparticles were deposited on SWNTs by way of facile reduction in ethylene glycol, as proven by TGA and TEM. Graft polymerizations of polystyrene from oxidized SWNTs via ATRP reaction and pristine SWNTs via anionic polymerization were successful. The polystyrene brushes displayed improved solubility in organic solvents over pristine SWNTs. Further analysis of the brushes was performed using TEM and FTIR spectroscopy.

DOI

https://doi.org/10.31274/etd-180810-59

Copyright Owner

Toheeb Bola Alabi

Language

en

Date Available

2012-04-30

File Format

application/pdf

File Size

48 pages

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