Dr. David W. Hatchett

Assistant Professor
Environmental/Analytical Chemistry
Phone: (702) 895-3509
Fax: (702) 895-4072
E-Mail: dahatchet@ccmail.nevada.edu

Education:

Postdoctoral fellow: Georgia Institute of Technology, Atlanta, Georgia, 1997-1999.
Ph.D. - Physical/Analytical Chemistry: University of Utah, Salt Lake City, Utah, 1997.
B.Sc. - Chemistry: California State University, Stanislaus, Turlock, California, 1992.
 

Major Teaching Responsibilities:

Quantitative Analysis
Instrumental Analysis
Electrochemistry
Chemical Sensors
 

Research Interests:

Electrochemical formation of ordered monolayers on single crystal metal surfaces
The adsorption of anions at metal interfaces is a complex physical process. Electrochemical modulation of the potential at an electrode surface allows the process to be controlled and studied. The use of single crystal materials ensures that the adsorption surface is homogenous and that bulk physical processes can be measured. The primary goal of this research is electrochemical preparation of coatings, production of corrosion resistant surfaces, and the production of new catalytic materials.

Synthesis and characterization of conductive polymer/metal composite materials
The use of metals in the electronics industry is cumbersome and often limits the ability to miniaturize the devices. There is a push to produce polymeric wires with conductive properties similar to metals. This research utilizes the properties of conductive polymers and the ability of these polymers to reduce metal cations to form metal clusters within the polymer matrix. The goal of this research project is to design material that can be used as molecular wires with superior conductive properties in comparison to metals.

Ion and gas selective membranes for chemical sensing applications
The use of chemical systems as tranducers for chemical sensing is not a novel concept. Recently, remote chemical sensors were used on mars to examine the composition of soil. The need for new materials as chemical transducers is based primarily on the threat of biological, nuclear, and explosive device proliferation and use. This research focuses on the development and testing of gas and ion sensing materials that can be used to manufacture chemical sensors.
 

Selected Publications:

1. Hatchett, D.W.; Josowicz, M.; Baer, D.; Janata, J. Electrochemical formation of Au clusters in polyaniline. In press. Chemistry of Materials.

2. Hatchett, D.W.; Josowicz, D.; Janata, J. Acid doping of polyaniline, In press. J. Phys. Chem.

3. Hatchett, D.W.; Josowicz, M.; Janata, J. Comparison of chemically and electrochemically synthesized polyaniline films. In press. J. Electrochem. Soc. Lett.

4. Li, G.; Meazzel, L. A.; Polk, B.J.; Hatchett, D.W. ISE analysis of hydgrogen sulfide in cigarette smoke. In Press. J. Chem. Ed.

5. Hatchett, D.W.; Uibel, R.; Stevenson, K.J.; Harris, J.M.; White, H.S. Electrochemical measurement of the free energy of adsorption of n-alkanethiolates at Ag(111). J. Am. Chem. Soc. 1998, 120, 1062.

6. Stevenson, K.J.; Gao, X.; Hatchett, D.W.; White, H.S. Review: Voltammetric measurement of anion adsorption on Ag(111). J. Electroanal. Chem., 1998, 447, 43.

7. Stevenson, K.J.; Hatchett, D.W.; White, H.S. Electrochemical deposition of polyborate monolayers at Ag(111) electrodes.

8. Langmuir, 1997, 13, 6824. Hatchett, D.W.; Lacy, W.B.; Stevenson, K.J.; Harris, J.M.; White, H.S. Electrochemical Oxidative Adsorption of Ethanethiol on Ag(111). J. Am. Chem. Soc. 1997, 119, 6596.

9. Hatchett, D.W.; White, H.S. Electrochemistry of Sulfur Adlayers on the Low Index Faces of Silver. J. Phys. Chem. 1996, 100, 9854.

10. Hatchett, D.W.; Gao, X.; Catron, S.C.; White, H.S. Electrochemistry of Sulfur Adlayers on Ag(111). Evidence for a Concentration- and Potential-Dependent Surface-Phase Transition. J. Phys. Chem. 1996, 100, 331.
 

Last updated 11-18-2002.