||I U P A C
for Young Chemists
.... 2008 winners
Organizations & People
Winner of the IUPAC
for Young Chemists - 2008
Scott C. Warren
wins one of the five IUPAC Prizes for Young Chemists, for his
Ph.D. thesis work entitled "Nanoparticle-block copolymer-self-assembly."
Current address (at the time of application)
Ecole Polytechnique Fédérale de Lausanne
Ph.D. Cornell University, August 2007, Chemistry
& Chemical Biology
M.S. Cornell University, May 2004, Chemistry &
B.A. Whitman College, May 2002, Chemistry
Adviser Professor Francis J. DiSalvo
Thesis Committee Prof. Ulrich Wiesner, Materials Science
& Engineering; Prof. Hector D. Abruña, Chemistry &
Chemical Biology; and Prof. Geoff W. Coates, Chemistry & Chemical
Fuel cells are a promising technology with respect to power generation
because of the potential for efficient conversion of chemical energy
to electrical energy. Despite extensive research on proton exchange
membrane (PEM) fuel cells, the materials comprising the electrodes are
disordered, which impedes optimization of structural parameters. A radical
improvement in performance, stability, and platinum utilization may
be achieved through self-assembly of the electrode.
Nanoparticle-block copolymer self-assembly provides a route to design
ordered mesostructures (structures with characteristic length scales
of 2 to 50 nm). I discuss the chemistries and design concepts needed
to self-assemble ordered mesoporous materials with high metal loadings.
First, I present experimental evidence that nanoparticle size dramatically
influences self-assembly. Next, I discuss a sol-gel chemistry that incorporates
high loadings of metals into electrically conductive mesostructures.
I highlight metal nanoparticles with liquid like behavior that enable
the self-assembly of ordered mesoporous metals......[full
text; pdf file - 1.08MB]
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