Solid
State Ionics
The synthesis, structure, thermodynamics
and transport properties of mixed
metal oxides are investigated at
high temperature. The results are
relevant to the performance of materials
used in ion transport membrane reactors
and as electrodes in solid oxide
fuel cells. Electrochemical and
isotope exchange depth profiling
techniques are also used to determine
the to study the effects of microstructure
and strain on surface reactivity
and bulk transport in thin film
oxides.
Oxide
Nanostructures
We synthesize new compounds that
have open-framework and microporous
structures. Our emphasis is on metal
silicates containing transition
metal centers that are thermally
stable under catalytic conditions.
We also investigate the use of microporous
and mesoporous oxides as templates
for the synthesis of nanoparticles,
nanorods and nanotubes.
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Oxygen
transport in oxide thin film
structures. Oriented La0.5Sr0.5CoO3-x
on single-crystal yttria-stabilized
zirconia, Electrochem.
Solid-State Lett. 2000 3(1)
59-61.
Oxygen
Exchange Kinetics on a Highly
Oriented La0.5Sr0.5CoO3-x
Thin Film, Appl Phys
Lett. 2001 79 776-778.
The
effect of the magnitude of the
oxygen partial pressure change
in electrical conductivity relaxation
measurements: oxygen transport
kinetics in La0.5Sr0.5CoO3–x.,
Solid State Ionics, 2001 140
125-133
Open-Framework
and Microporous Vanadium Silicates,
J. Amer. Chem. Soc. 2002 124
7812-7820
A
Reversible Solid State Crystalline
Transformation in a Metal Phosphide
Induced by Redox Chemistry,
Science, 2002, 296, 2012-2015.
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