stevenson@cm.utexas.edu
Analytical Chemistry
Assistant Professor, Faculty
Fellow, Jack S. Josey Professorship in Energy Studies
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Course Web Site CH 376K- Spring 2005 Contact Information WEL 3.416 Office Phone: 232-9160 Fax: 471-8696 Education B.A., University of Puget Sound (1989); Ph.D., University of Utah (1997); Postdoctoral Fellow, Northwestern University (1997-2000) |
Awards
NSF Career Award (2002); CSGS New Scholar Award (2004); SEAC Young Investigator Award (2006)
Affiliations
Center for Nano- and Molecular Science and Technology; Texas Material Institute
Analytical Chemistry, Electrochemistry, and Surface Chemistry
Our research is aimed at
understanding and controlling the kinetics and
energetics of reactions occurring at scientifically interesting and
technologically relevant solid/liquid interfaces. Driving our
fundamental interest is the need to comprehend the intricate
relationships between mass transport, surface reactivity and
interfacial structure. Information of this kind is useful for the
design and optimization of superior chemical process technologies
associated with the areas of chemical sensing, energy
storage/conversion, separations, photonics, microelectronics, and
device miniaturization.
"Reactive Imaging" of Nanostructured Materials for Advanced Power Sources
This project involves the
development of novel optical and scanning
probe imaging strategies for studying interfacial ion transfer
reactions. We hope to understand mechanistic issues associated with
electrochemically-stimulated intercalation behavior at mesoporous metal
oxide electrode/solution interfaces for fabrication of superior energy
materials (e.g., batteries).
Development of Chemically-Responsive Materials, Sensors, and Photonic Devices
This project is directed toward
the rational preparation and assembly
of nanostructured materials (mesoporous, colloidal, sorptive or
framework solids) for use in developing low-cost and selective chemical
sensing methodologies. These materials could prove useful as novel
photonic devices or function as active elements for chemo-responsive
and electroactive sensors and actuators.
Interrogation of Nucleation, Growth, and Corrosion Events at Metallic Thin Films
This project focuses on the
study of metallic thin films commonly
utilized in the manufacture of microelectronic devices. We hope to
better elucidate film growth and stability processes in relation to
microstructure (e.g., defects, impurities, grain boundaries) and
interfacial microenvironment (e.g., role of oxidizers and passivators)
for development of spatially-controlled electroforming techniques
(deposition and etching) for fabrication of nano-features and
microstructures.
Representative Publications
Maldonado, S.;
Stevenson, K. J. “Influence of Nitrogen Doping on Oxygen
Electrocatalysis at Carbon Nanofiber Electrodes,” J. Phys. Chem. B,
2005, 109(10), 4707
McEvoy, T. M.; Stevenson, “Spatially-Resolved Imaging of Inhomogeneous Ion/Charge Transfer Behavior in Polymorphous MoO3. I. Correlation of Localized Structural, Electronic, and Chemical Properties Using Conductive Probe AFM and Raman Microscopy; Langmuir, 2005, 21(8), 3521
Maldonado, S.; Stevenson, K. J. "Direct Preparation of Carbon Nanofiber Electrodes Via Pyrolysis of Iron(II) Phthalocyanine: Electrocatalytic Aspects for Oxygen Reduction" J. Phys. Chem. B, 2004, 108(31), 11375
McEvoy, T. M.; Stevenson, K. J. "Spatially-Resolved Measurement of Inhomogeneous Electroninsertion/Electrocoloration in Polycrystalline Molybdenum Oxide Thin Films Via Chronoabsorptometric Imaging" J. Am. Chem. Soc., 2003, 125, 8438
McEvoy, T. M.; Stevenson, “Spatially-Resolved Imaging of Inhomogeneous Ion/Charge Transfer Behavior in Polymorphous MoO3. I. Correlation of Localized Structural, Electronic, and Chemical Properties Using Conductive Probe AFM and Raman Microscopy; Langmuir, 2005, 21(8), 3521
Maldonado, S.; Stevenson, K. J. "Direct Preparation of Carbon Nanofiber Electrodes Via Pyrolysis of Iron(II) Phthalocyanine: Electrocatalytic Aspects for Oxygen Reduction" J. Phys. Chem. B, 2004, 108(31), 11375
McEvoy, T. M.; Stevenson, K. J. "Spatially-Resolved Measurement of Inhomogeneous Electroninsertion/Electrocoloration in Polycrystalline Molybdenum Oxide Thin Films Via Chronoabsorptometric Imaging" J. Am. Chem. Soc., 2003, 125, 8438