Assistant Professor, Physical Chemistry
Department of Chemistry and Biochemistry
University of Delaware
Newark, DE 19716
Phone: (302) 831-1969
Fax: (302) 831-6335
e-mail:andrewt@udel.edu
Education
(b. 1970), B.S., 1992, Moscow State University;
M.S., 1993, Ph.D., 1997, Columbia
University;
Postdoctoral Fellow, 1997-1998, New York University
CV
Education: B. S. (Chemistry). Moscow
State University, 1992. M. S. (Chemistry). Columbia University, 1993. Ph.
D. (Chemistry). Columbia University, 1997.
Fields of Specialization: Physics and chemistry of materials and interfaces,
surface physical chemistry, product identification and separation, applied
catalysis, reactions on metal and semiconductor surfaces, plasma assisted
interface processes.
Research Experience:
1996-1998 Postdoctoral research with Prof. Stacey Bent (New York University).
This research was related to physical and chemical properties of semiconductor
surfaces.
1992-1996 Doctoral research with Prof. Brian Bent (Columbia University).
This research was focused on the reactions of hydrocarbons and halohydrocarbons
on single crystal metal surfaces.
1990-1992 Undergraduate research with Prof. Igor Beckman (Moscow State
University, Division of Chemical Engineering and A. V. Topchiev Institute
of Petrochemical Synthesis, Russian Academy of Sciences, Moscow, Russia).
This research was related to integrated polymeric membrane-moving liquid
modules for gas separation and purification.
1988-1990 Undergraduate research with Prof. Eduard Filatov (Moscow State
University, Division of Radiochemistry). The research involved applied
radiochemistry and radiotracer techniques for studies of the reactions
of hot tritium atoms with solid organic substrates.
Professional Memberships:
Mendeleev Chemical Society (Russia)
American Chemical Society (USA)
American Vacuum Society (USA)
Sigma Xi (Columbia University Chapter, NY, USA)
Awards:
Best undergraduate project in physical chemistry section. Moscow State
University, 1992.
Diploma with excellence of Moscow State University, 1992.
Columbia University Pegram Award for the meritorious achievement by
graduate students in their progress toward the Ph. D., 1996
Field Research Experience:
1. Summer 1989: Radiochemical Pollution in Far East (joint project of
Institute of Oceanography and Moscow State University);
2. Summer 1991: Pollution of Black Sea (Moscow - Istanbul; Moscow State
University)
Professional Activities:
General User, National Synchrotron Light Source, Brookhaven National
Laboratory (1993-present)
List of Publications and Presentations
Invited Talks
1. State University of New York at Albany (Albany, NY) 1997.
2. University of Delaware (Newark, DE) 1998.
3. DuPont Central Research and Development (Wilmington, DE) 1999.
Scientific Presentations:
1. Reactions of hot tritium atoms with frozen organic substrates. Oral
presentation at the Conference of Young Scientists, Moscow State University,
Moscow, Russia, April 1991
2. Adsorbate displacement and its application to study chemical reactions
on copper surfaces. Poster at the 208th National Meeting of the American
Chemical Society, Division of Colloid & Surface Chemistry, August 21-25,
1994, Washington, DC (with Michael X. Yang and Brian E. Bent).
3. Distinguishing direct and quasi-direct mechanisms for an Eley-Rideal
gas-surface reaction: stereochemistry of H addition to cyclohexene on Cu(100).
Poster at Gordon's Research Conference "Dynamics at Surfaces", Andover,
NH, August 5-11, 1995 (with Brian E. Bent).
4. Distinguishing direct and quasi-direct mechanisms for an Eley-Rideal
gas-surface reaction: stereochemistry of H addition to cyclohexene on Cu(100).
Oral presentation at the 42nd National Symposium of the American Vacuum
Society, October 16-20, 1995, Minneapolis, MN (with Brian E. Bent).
5. Spectroscopic studies and chemical applications of adsorbate displacement
reactions on copper surfaces. Oral presentation at the 211th National Meeting
of the American Chemical Society, Division of Colloid & Surface Chemistry,
March 24-28, 1996, New Orleans, LA (with Phillip W. Kash, Michael X. Yang,
George W. Flynn, and Brian E. Bent).
6. Benzene formation by 1-hexene on Cu3Pt(111). Poster at the 43rd National
Symposium of the American Vacuum Society, October 14-18, 1996, Philadelphia,
PA (with Brian E. Bent).
7. Dehydrocyclization of 1-hexene to benzene on Cu3Pt(111): determination
of the reaction mechanism and spectroscopic identification of intermediates.
Poster at Gordon's Research Conference "Chemical Reactions at Surfaces",
Ventura, CA, February 16-21, 1997 (with Alejandra B. Gurevich and Brian
E. Bent).
8. Dehydrocyclization of 1-hexene to benzene on Cu3Pt(111): determination
of the reaction mechanism and spectroscopic identification of intermediates.
Oral presentation at the 213th National Meeting of the American Chemical
Society, Division of Colloid & Surface Chemistry, April 13-17, 1997,
San Francisco, CA (with Alejandra B. Gurevich, Jingguang G. Chen, and Brian
E. Bent).
9. Interaction of C6 cyclic hydrocarbons with a Si(100)-2x1 surface:
adsorption and hydrogenation by atomic hydrogen. Poster at the 44th National
Symposium of the American Vacuum Society, October 20-24, 1997, San Jose,
CA (with Maynard J. Kong and Stacey F. Bent).
10. Interaction of ethylene with the Ge(100)-2x1 surface: coverage and
time-dependent behavior. Oral presentation at the 45th National Symposium
of the American Vacuum Society, November 2-6, 1998, Baltimore, MD (with
Pratik Lal, Yetundé Noah, Maynard J. Kong, and Stacey F. Bent).
Publications:
1. Beckman, I. N.; Gladkov, V. S.; Teplyakov, V. V.; Teplyakov, A. V.
and Kuznetsov, L. P. Method of membrane-absorption separation of gas mixtures
and the set up for. Patent of the USSR, approval #1637850, BOID
53/22, 1991.
2. Beckman, I. N.; Bessarabov, D. G., Teplyakov, V. V. and Teplyakov,
A. V. Integrated membrane systems with moving liquid carriers for multicomponent
gas separation. BHR Group Conf. Ser. Publ. 1993, 3
(Effective Membrane Processes-New Perspectives), 297-306.
3. Teplyakov, V.; Beckman, I.; Teplyakov, A. and Netrusov, A. Integrated
membrane systems with moving liquid carriers for biogas separation in biotechnology.
BHR Group Conf. Ser. Publ. 1993, 5 (3rd International
Conference on Bioreactor and Bioprocess Fluid Dynamics, 1993), 315-322.
4. Netrusov, A.; Teplyakov, A.; Bessarabov, D. and Teplyakov V. Gas
separation systems for biotechnology by integrated membranes with moving
liquid carriers. Conf. Adv. Biochem. Eng., Three-Day Symp., 2nd,
1994, 106-8.
5. Teplyakov, A. V. and Bent, B. E. b-Hydride
elimination from alkyl and cycloalkyl groups on Cu(100) surface: ring strain
and planarity of the transition state. J. Am. Chem. Soc. 1995,
117, 10076-10087.
6. Teplyakov, A. V. and Bent, B. E. Distinguishing direct and quasi-direct
mechanisms for an Eley-Rideal gas-surface reaction: stereochemistry of
H addition to cyclohexene on Cu(100). J. Chem. Soc. Faraday Trans.
1995, 91 (20), 3645-3654.
7. Lin, J.-L.; Teplyakov, A. V. and Bent, B. E. The effects of alkyl
chain structure on carbon-halogen bond dissociation and b-hydride
elimination by alkyl halides on a Cu(100) surface. J. Phys. Chem.
1996, 100, 10721-10731.
8. Teplyakov, A. V. and Bent, B. E. Infrared spectroscopic study of
the chemical displacement of hydrocarbon monolayers from a Cu(100) surface.
Chem. Phys. Lett. 1996, 260, 65-70.
9. Teplyakov, A. V. and Bent, B. E. Dehydrocyclization of 1-hexene to
benzene on Cu3Pt(111). Catal. Lett. 1996, 42
(1,2), 1-4.
10. Teplyakov, A. V.; Gurevich, A. B.; Yang, M. X.; Chen, J. G. and
Bent, B. E. NEXAFS and TPD studies of molecular adsorption of hydrocarbons
on Cu(100): segmental correlations with the heats of adsorption. Surf.
Sci. 1998, 396, 340-348.
11. Kash, P. W.; Yang, M. X.; Teplyakov, A. V.; Flynn, G. W. and Bent,
B. E. Chemical displacement of molecules adsorbed on surfaces: low temperature
studies with application to surface reactions . J. Phys. Chem. B
1997, 101, 7908-7918.
12. Teplyakov, A. V. and Bent, B. E. Mechanism of dehydrocyclization
of 1-hexene to benzene on Cu3Pt(111). J. Phys. Chem. B
1997, 101, 9052-9059.
13. Yang, M. X.; Teplyakov, A. V. and Bent, B. E. Regioselectivity of
deuterium atom addition to olefin monolayers on Cu(100). J. Phys. Chem.
B 1998, 102 (16), 2985-2990.
14. Lusvardi, V. S.; Barteau, M. A.; Chen, J. G; Eng, J., Jr.; Frühberger,
B. and Teplyakov, A. V. A NEXAFS investigation of the reduction and reoxidation
of TiO2(001). Surf. Sci. 1998, 397, 237-250.
15. Teplyakov, A. V.; Gurevich, A. B.; Garland, E. R. and Bent, B. E.
Mechanism of dehydrocyclization of 1-hexene to benzene on Cu3Pt(111):
identification of 1,3,5-hexatriene as a reaction intermediate. Langmuir
1998, 14 (6), 1337-1344.
16. Gurevich, A. B.; Teplyakov, A. V; Yang, M. X.; Bent, B. E.; Delamar,
M.; Desbat, B.; Pinson, J. and Savéant, J.-M. Spectroscopic identification
of nitrophenyl groups electrochemically grafted to a graphite surface using
Near Edge X-ray Absorption Spectroscopy (NEXAFS) (in preparation).
17. Gurevich, A. B.; Teplyakov, A. V.; Yang, M. X. and Bent, B. E. Synthesis,
bonding and reactions of p-bonded allyl groups on Cu(100): allyl radical
ejection. Langmuir 1998, 14 (6), 1419-1427.
18. Gurevich, A. B.; Teplyakov, A. V.; Chen, J. G. and Bent, B. E. Identification
of copper oxides using NEXAFS (accepted to Surf. Sci.).
19. Teplyakov, A. V.; Bent, B. E.; Eng, J., Jr. and Chen, J. G. Vibrational
mode-softening of alkanes on clean and modified Cu and Mo surfaces: absence
of a simple correlation with thermal desorption temperatures. Surf.
Sci. 1998, 399, L342-L350.
20. Teplyakov, A. V.; Kong, M. J. and Bent, S. F. Vibrational spectroscopic
studies of Diels-Alder reactions with the Si(100)-2x1 surface as a dienophile.
J. Am. Chem. Soc. 1997, 119, 11100-11101.
21. Teplyakov, A. V.; Kong, M. J. and Bent, S. F. Diels-Alder reactions
of butadienes with the Si(100)-2x1 surface as a dienophile: vibrational
spectroscopy, thermal desorption and near edge X-ray absorption fine structure
studies. J. Chem. Phys. 1998, 108 (11), 4599-4606.
22. Kong, M. J.; Teplyakov, A. V. and Bent, S. F. NEXAFS studies of
adsorption and reaction of benzene on Si(100)-(2x1). Surf. Sci.
1998, 411, 286-293.
23. Kong, M. J.; Teplyakov, A. V. and Bent, S. F. Interaction of C6
cyclic hydrocarbons with a Si(100)-2x1 surface: adsorption and hydrogenation
by atomic hydrogen (in preparation).
24. Teplyakov, A. V.; Lal, P.; Noah, Y. and Bent, S. F. Evidence for
a Retro-Diels-Alder Reaction on a Single Crystal Surface: Butadienes on
Ge(100). J. Am. Chem. Soc. 1998, 120 (29), 7377-7378
25 Lal, P.; Teplyakov, A. V.; Noah, Y.; Kong, M. J.; Wang, G. T. and
Bent, S. F. Interaction of Ethylene with Ge(100)-2x1 Surface: Temperature
and Time-Dependent Studies. J. Chem. Phys. 1999, 110(21),
10545-10553
Research Interests
My research program focuses on the interdisciplinary
area of experimental surface chemistry. The beauty of this discipline
is in its links with analytical, organic, and inorganic chemistry.
Using the techniques and methods of physical chemistry, my group will be
solving various problems related to catalytic transformation of hydrocarbons
and their derivatives on complex metallic and metal-semiconductor surfaces
as well as the effect of these processes on the surfaces. The proposed
projects will be divided into two main parts: catalysis on bimetallic
surfaces and surface reactions and modification of metal silicides.
The first area will concentrate on chemistry of hydrocarbons, halohydrocarbons,
and oxygen-containing molecules on single crystal surfaces of copper-platinum
alloys. The reactions relevant for production, reforming, polymerization,
and efficient disposal of these compounds will be studied. The second
project will be related to the chemistry leading to the formation of surface
metal-semiconductor compounds, such as metal silicides, and to the chemical
and physical properties of these surfaces. The findings of such projects
are used in electronics, nanooptics, and lithography.
My group will be using modern analytical techniques
to understand these complex processes on a molecular level. Vibrational
spectroscopies, high energy electron spectroscopies, mass spectrometry,
and X-ray spectroscopies will be used at my laboratory on campus as well
as at the National Synchrotron Light Source at Brookhaven National Laboratory,
Upton, NY. I plan to continue collaborative projects with theoretical
groups in the Department of Chemistry and Biochemistry, and experimental
groups in the Departments of Chemical Engineering and Materials Science,
as well as with industrial companies.
Representative Publications
1. A. V. Teplyakov, B. E. Bent, "Distinguishing Direct and Quasi-Direct
Mechanisms for an Eley-Rideal Gas-Surface Reaction: Stereochemistry
of H Addition to Cyclohexene on Cu(100)." J. Chem. Soc., Faraday Trans.
(1995) 91 (20), 3645-3654.
2. P. W. Kash, M. X. Yang, A. V. Teplyakov, G. W. Flynn, B. E. Bent,
"Chemical Displacement of Molecules Adsorbed on Surfaces: Low Temperature
Studies with Application to Surface Reactions." J. Phys. Chem., B
(1997) 101, 7908-7918.
3. A. V. Teplyakov, B. E. Bent, "Mechanism and Dehydrocyclization of
1-Hexene to Benzene on Cu3Pt(111)." J. Phys. Chem., B
(1997) 101, 9052-9059.
4. A. V. Teplyakov, A. B. Gurevich, E. R. Garland, B. E. Bent, "Mechanism
of Dehydrocyclization of 1-Hexene to Benzene on Cu3Pt(111):
Identification of 1,3,5-Hexatriene as a Reaction Intermediate." Langmuir
(1998) 14 (6), 1337-1344.
5. A. V. Teplyakov, M. J. Kong, S. F. Bent, "Vibrational Spectroscopic
Studies of Diels-Alder Reactions with the Si(100)-2x1 Surface as a Dienophile."
J. Am. Chem. Soc.(1997) 119, 11100-11101.
Send an e-mail to  Dr. Andrew Teplyakov
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