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Staff

Cristian I. Contescu

Senior Research Scientist
Carbon & Composites Group
Materials Science & Technology Division
Oak Ridge National Laboratory
P.O. Box 2008
Oak Ridge, TN 37831-6087
Phone: (865) 241-3318
Fax: (865) 576-8424
e-mail: contescuci@ornl.gov

 

Research Interests:

  • Use of carbon materials for energy-related applications: gas storage (hydrogen, methane), gas separation and purification (CO2 scrubbing, adsorption of VOC from air), and energy storage
  • Carbon nanostructures; nanoporous carbons
  • Physical chemistry and electrochemistry of oxide/solution and carbon/solution interfaces; electrochemical energy storage
  • Synthesis and characterization of activated carbons, magnetically responsive carbons, catalysts and catalyst supports
  • Surface reactivity of carbon materials, oxides, catalysts, and catalyst supports.
  • Colloid and surface chemistry
  • Advanced topics in nanoscience and nanotechnology http://www.nanoscienceworks.org/people/contescu-cristian-i

Education:

  • Bucharest Polytechnic Institute, Ph.D., 1979, Chemical Kinetics and Catalysis
  • Bucharest University (Highest Honors), M.S., 1971, Physical Chemistry

Research and Professional Experience:

  • 2004–present - Senior Research Staff Member, ORNL, Oak Ridge, TN
  • 2001–2004 - Senior Scientist, Materials Methods LLC, Newport Beach, CA
  • 1999-2001 - Senior Scientist, HITCO Carbon Composites Inc., Gardena, CA
  • 1996-1999 - Senior Research Scientist, Upstate Laboratory Inc., Syracuse, NY
  • 1996-1997 - Senior Scientist I, Syracuse University, Syracuse, NY
  • 1996-1997 - Adjunct Associate Professor, Syracuse University, Syracuse, NY
  • 1992-1996 - Research Associate / Visiting Fellow, Syracuse University, Syracuse, NY
  • 1971-1992 - Senior Research Scientist / Research Scientist / Chemist, Institute of Physical Chemistry of Romanian Academy, Bucharest, Romania

Patents Issued:

  • S. M. Jaffe and C. I. Contescu, “Adsorbent Sheet Material for Parallel Passage Contactors”, U.S. Patent 7,077,891 (July 18, 2006).
  • K. Putyera, C. I. Contescu, K. A. G. Amankwah, and W. S. Amato, “Post-carbonization Treatment of Microporous Carbons for Enhancement of Methane and Natural Gas Storage Properties”, U.S. 6,225,257 (May 1, 2001).
  • L. I. Patron, S. D. Plostinary, A. Contescu, M. Vass, C. P. Osiceanu, M. L. Cristea, C. I. Contescu, D. D. Crisan, C. N. Stanica, “Combined Oxides on Lanthanides Basis Preparation Process”, Romanian Patent RO 0100723B1 (October 29,1991).
  • M. I. Vass, V. A. Diaconescu,; C. I. Contescu: “Process and Device for Nitriding Small Iron and Steel Parts” (“Procedee et Dispositif pour la Nitruration des Petites Pieces en Acier et Fer”), Romanian Patent, RO 0070382 B1 (February 2, 1985).

Professional Societies, Professional Services, Awards, and Honors:

  • Editorial Board member: Carbon journal (Elsevier) (2007)
  • American Carbon Society: Program Committee of CARBON 2007 Conference, Seattle, WA
  • Editor: Dekker Encyclopedia of Nanoscience and Nanotechnology (Taylor and Francis)
  • Scientific Review Panel, DOE-BES, basic research for Hydrogen Fuel Initiative (2007)
  • Board of reviewers: Carbon, J Phys. Chem., J. Nuclear Mat., Chem. Mater., J. Colloid Interface Sci., Applied Catalysis, Thermochimica Acta, Thin Solid Films, Ind. Engn. Chem. Res.,  etc
  • American Chemical Society, Division of Colloid and Surface Science: co-organizer of three symposia on Nanoscience and Nanotechnology (2001, 2003, 2004)
  • Romanian Academy, Chemical Sciences Division: “G. Spacu” National Award offered for basic research on catalyst preparation (1991)
  • IREX (International Research Exchange): research grant at Syracuse University (1990)

Publications:

Books Edited:

  1.  J. A. Schwarz, C. Contescu and K. Putyera, Editors: "Dekker Encyclopedia of Nanoscience and Nanotechnology", Marcel Dekker Inc., New York, online and in print; 1st Edition, 2004 (5 volumes, 324 chapters; 1st Edition 2004, 2nd Edition, 2008).
  2. J. A. Schwarz and C. Contescu, Editors: “Surfaces of Nanoparticles and Porous Materials”, in Surfactant Sciences Series,Vol. 78 , Marcel Dekker Inc., New York (1999).

Chapters to Books:

  1. C. I. Contescu and Adriana Contescu, “Oxides and Related Surfaces as Catalyst Supports”, invited chapter in “Encyclopedia of Surface and Colloid Science”, Arthur Hubbard Editor, on-line and print, Marcel Dekker Inc., New York (2002).
  2. C. I. Contescu and J. A. Schwarz: "Acid-Base Interactions on Surfaces of Wet and Dry Inorganic Oxides", in "Acid-Base Interactions: Relevance to Adhesion Science and Technology", vol. 2, Ed. K. L. Mittal, VSP BV 2000, Utrecht, 2000, pp. 245 - 274.
  3. C. Contescu and J. A. Schwarz:  "Acid-Base Behavior of Surfaces of Porous Materials",in “Surfaces of Nanoparticles and Porous Materials”, Surfactant Sciences Series, Vol. 78, Eds. J. A. Schwarz and C. Contescu, Marcel Dekker Inc., New York, 1999, pp. 51 – 102.
  4. J. A. Schwarz, Cr. Contescu, J. Jagiello: "Binding Properties of Hydroxyl Groups on Substrates in Aqueous Environments: Their Relationship to Catalyst Preparation", in Catalysis, vol. 11, Specialist Periodical Report, Royal Society of Chemistry, Thomas Graham House, Cambridge (UK), 1994, pp.127-165.

Publications (selected from over 45):

  1. X. Wu, N. C. Gallego, C. I. Contescu, H. Tekinalp, V. Bhat, F. S. Baker, M. C. Thies, D. D. Edie: “The Effect of Processing Conditions on Microstructure of Pd-containing Activated Carbon Fibers”, Carbon  46 (2008) 54-61.
  2. C. I. Contescu, F. S. Baker, R. D. Hunt, J. L Collins, T. D. Burchell, “Selection of Water-dispersible Carbon Black for Fabrication of Uranium Oxicarbide Microspheres”, J. Nucl. Mater. 375 (2008) 38-51.
  3. C. I Contescu, T. D. Burchell: “Selection and Characterization of Carbon Black and Surfactants for Development of Small Scale Uranium Oxicarbide Kernels”, ORNL/TM-2005/548, Oak Ridge National Laboratory (November 2005).
  4. F. Baker, N. Gallego, C. Contescu, T. Burchell: “Use of Carbon Fiber Molecular Sieves for Air Separation”, ORNL/TM-2005/527, Oak Ridge National Laboratory (September 2005).
  5. H. Xu, V. V. Konovalov, C. I. Contescu, S. M. Jaffe, M. Madou: “Water Transport in a Non-Aqueous Poly-Pyrrole Electrochemical Cell”, Sensors and Actuators, B 114 (2006) 248-253.
  6. F. S. Baker, N. C. Gallego, C. I. Contescu, and T. D. Burchell, “Use of Carbon Fiber Composite Molecular Sieves for Air Separation”, ORNL/TM-2005/527, Oak Ridge National Laboratory, Oak Ridge, TN (September 2005).
  7. J. A. Schwarz, C. Contescu, V. T. Popa: "Solid State Chemistry in Two Dimensions", Chem. Papers, 52, 717-724 (1998).
  8. V. Menon, V. T. Popa, C. Contescu, J. A. Schwarz: "Reactive Sites on Mixed Oxides Solid Acid Catalysts: Isomerization of 1-Butene over Zirconia-Silica", Rev. Roumaine Chimie, 43, 393 (1998).
  9. A. Contescu, M. Vass, C. Contescu, K. Putyera, J. A. Schwarz: “Acid Buffering Capacity of Basic Carbons Revealed by Their Continuous pK Distribution”, Carbon36, 247-258 (1998).
  10. V. T. Popa, C. Contescu, J. A. Schwarz; “Nonuniformity Windows at the Oxide/Aqueous Interface. Apparent Proton Transfer Rates in pH-jump Relaxation Kinetics”, Polish J. Chem.  71, 583-593 (1997).
  11. A. Contescu, C. Contescu, K. Putyera, J. A. Schwarz: "Surface Acidity of Carbons Characterized by Their Continuous pK Distribution and Boehm Titration", Carbon35, 83-94 (1997).
  12. C. Contescu, V. T. Popa, J. B. Miller, E. I. Ko, J. A. Schwarz: “Bronsted-Type Relationship for Surface Active Sites on Solid Acid Catalysts: 1 Butene Isomerization on TiO2-SiO2, ZrO2-SiO2, and Al2O3-SiO2Mixed Oxide Catalysts”. Chem. Eng. J.64, 265-272 (1996).
  13. C. Contescu, V. T. Popa, J. A. Schwarz: “Heterogeneity of Hydroxyl and Deuteroxyl Groups on the Surface of TiO2  Polymorphs”,J. Colloid Interface Sci., 180, 149-161 (1996).
  14. C. Contescu, V. T. Popa, J. B. Miller, E. I. Ko, J. A. Schwarz: “Proton Affinity Distribution of TiO2-SiO2 and ZrO2-SiO2 Mixed Oxide Catalysts and Their Relationship to Catalyst Activities for 1-Butene Isomerization” J. Catal.157, 244-258 (1995).
  15. J. A. Schwarz, Cr. Contescu, A. Contescu: “Methods for Preparation of Catalytic Materials” Chem. Rev., 95, 477-510 (1995).
  16. T. J. Bandosz, J. Jagiello, C. Contescu, J. A. Schwarz: “A Characterization of the Surfaces of Activated Carbons in Terms of Their Acidity Constant Distribution” Carbon, 31, 1193-1202 (1993).
  17. C. Contescu, J. Jagiello, J. A. Schwarz: ”Heterogeneity of Proton Binding Sites at the Oxide/Solution Interface” Langmuir, 9, 1754-1765 (1993).
  18. C. Contescu, J. Jagiello, J. A. Schwarz;"A Study of the Acidic Properties of Pure and Composite Oxides by Inverse Gas Chromatography at Infinite Dilution" J. Catal., 131, 433-444 (1991).
  19. Ch. Sivaraj, C. Contescu, J. A. Schwarz: "Effect of Calcination Temperature of Alumina on the Adsorption-Impregnation of Pd(II) Complexes" J. Catal., 132, 422-431 (1991).
  20. C.Contescu, Ch. Sivaraj, J. A. Schwarz: “Selective Ion Exchange of Palladium on Alumina-Silica Composite Oxides” Appl. Catal., 74, 95-108 (1991).
  21. C. Contescu, M. I. Vass: "Effect of pH on the Adsorption of Palladium (II) Complexes on Alumina", Appl. Catal.  33, 259 - 271 (1987).
  22. C. Contescu, M. I. Vass: “Field Emission microscopy Study of Silver Adsorption on Tungsten Single Crystal Planes”, Thin Solid Films, 97, 245-257 (1982).
  23. C. Contescu, M. I. Vass: “On the Dipole Moment of Cu, Ag, and Au Atoms Adsorbed on Different Tungsten Crystal Planes”, Rev. Roumanie Chimie, 27, 59-67 (1982).
  24. C. Contescu: “FEM Study of Silver Layers Adsorbed on Tungsten. III Silver Layers Growth Modes”, Rev. Roumanie Chimie, 26, 355-361 (1981).
  25. C. Contescu: “FEM Study of Silver Layers Adsorbed on Tungsten. II Structure Structure and Silver Migration”, Rev. Roumanie Chimie, 26, 175-183 (1981).
  26. M. I. Vass, C. Contescu: “FEM Study of Silver Layers Adsorbed on Tungsten. I Work Function and Surface Migration”, Rev. Roumanie Chimie, 20, 1253-1265 (1975).
  27. C. Contescu, I. Salageanu, D. Fatu, E. Segal: “Chemisorptive Properties of Germanium Thin Layers. The Germanium -  Hydrogen System”, Annals of Bucharest University, 20, 135-145 (1971).

Conference Proceedings:

  1. V. V. Bhat, C. I. Contescu, N. C. Gallego, E. A. Payzant, A. J. Rondinone, H. Tekinalp, D. D. Edie, “in situ high pressure XRD study on hydrogen uptake behavior of Pd-Carbon systems”, Proc. 2007 Mat. Res. Soc. Fall Meeting, November 26-30, 2007, Boston, MA
  2. K. van Bentehm, G. S. Painter, P. F. Becher, C. I. Contescu, N. C. Gallego, S. J. Pennycook; “High Resolution Microsopy with Single Atom Sensitivity using Aberration-corrected STEM”, Proc. Microscopy and Microanalysis 2007 Conf., August 5-9, 2007, Ft. Lauderdale, FL.
  3. K. van Benthem, C. I. Contescu, N. C. Gallego, S. J. Pennycook: “Microstrcutural Characterization of Activated Carbon Fibers Using Aberration Corrected Scanning Transition Electron Microscopy”, Proceedings of CARBON 2007 International Conference, July 15-20, 2007, Seattle, WA.
  4. H. L. Tekinalp, E. Cervo, M. C. Thies, C. I. Contescu, N. C. Gallego, D. D. Edie; “The Effect of Pitch Composition on the Adsorption Behavior of Pd-doped ACF”, Proceedings of CARBON 2007 International Conference, July 15-20, 2007, Seattle, WA.
  5. S. J. Pennycook, A. R. Lupini, K. van Benthem, M. Varela, M. F. Chisholm, A. Y. Borisevich, C. I. Contescu, N. C. Gallego, T. J. Pennycook, Y. Peng, M. P. Oxley: “New Views of Materials through Aberration-Corrected STEM”, Proc. Microscopy and Microanalysis 2007 Conf., August 5-9, 2007, Ft. Lauderdale, FL.
  6. C. I. Contescu, N. C. Gallego, X. Wu, H. Tekinalp, D. D. Edie, F. S. Baker: “Mechanism of Enhanced Hydrogen Adsorption on Palladium-doped Nanoporous Carbon Fibers”, Proceedings of CARBON 2007 International Conference, July 15-20, 2007, Seattle, WA.
  7. F. S. Baker, C. I. Contescu, C. Tsouris, T. D. Burchell: “Activated Carbon Composits for Air Separation”, Proc. 20th Annual Conference on Fossil Energy Materials, June 12-14, 2006, Knoxville, TN.
  8. N. C. Gallego, X. Wu, C. I. Contescu, F. S. Baker, H. Tekinalp, D. D. Edie:”Effect of Pd on the Hydrogen Adsorption Capacity of Activated Carbon Fibers”, Prepr. Pap. Am. Chem. Soc., Div. Fuel Chem. 2006, 51 92) 638.
  9. N. C. Gallego, C. I. Contescu, X. Wu,  F. S. Baker, H. Tekinalp, D. D. Edie:”Effect of Pd on the Hydrogen Adsorption Capacity of Activated Carbon Fibers”, Proc. Fuell Cell Seminar, November 13-17, 2006, Honolulu, HI.
  10. C. I. Contescu, N. C. Gallego, J. M. Pickel, D. A. Blom, T. D. Burchell: “Carbon Fiber Composite Monoliths for Catalyst Supports”, Prepr. Pap. Am. Chem. Soc., Div. Fuel Chem. 2006, 51(1), 120.
  11. C. I. Contescu, N. C. Gallego, J. M. Pickel, D. A. Blom, T. D. Burchell: “Carbon Fiber Composite Monoliths as Catalyst Supports”, Proceedings of CARBON 2006 International Conference, July 16-21, 2006, Aberdeen, Scotland.
  12. N. C. Gallego, F. S. Baker, C. I. Contescu, X. Wu, S. A. Speakman, H. Tekinalp, D. D. Edie: “Effect of Pd on the Hydrogen Adsorption Capacity of Activated Carbon Fibers”, Proceedings of CARBON 2006 International Conference, July 16-21, 2006, Aberdeen, Scotland.
  13. C. I. Contescu, F. S. Baker, T. D. Burchell: “Development of an ASTM Graphite Oxidation Test Method”, Proceedings of CARBON 2006 International Conference, July 16-21, 2006, Aberdeen, Scotland.
  14. C. I. Contescu, F. S. Baker, T. D. Burchell: “Surface Chemistry and Water Dispersability of Carbon Black Materials”, Proceedings of CARBON 2006International Conference, July 16-21, 2006, Aberdeen, Scotland.
  15. C. I. Contescu, F. S. Baker, N C. Gallego, T. D. Burchell, R. R. Judkins: “Carbon Fiber Composite Molecular Sieves for Scrubbing CO2 from Air”, Proceedings of CARBON 2006International Conference, July 16-21, 2006, Aberdeen, Scotland.
  16. N. C. Gallego, C. I. Contescu, F. S. Baker, Y. V. Basova, and D. D. Edie, “Mechanisms of Metal-Assisted Hydrogen Storage in Nanostructured Carbons”, Proceedings of CARBON 2005 International Conference, July 3-7 2005, Guenngju, Korea.
  17. C. I. Contescu, F. S. Baker, N. C. Gallego and T. D. Burchell, “Carbon Fiber Composite Molecular Sieves for Fast Removal of Contaminants from Air”, Proceedings of CARBON 2005International Conference, July 3-7 2005, Guenngju, Korea.
  18. S. M. Jaffe , C. I. Contescu,  “Nanocomposite Parallel Passage Contactor for High Purity Separations”, in Nanometer Scale Science and Engineering, Proc.American Institute of Chemical Engineering Annual Meeting, (3-8 November 2002, Indianapolis), AIChE Pub. No P-168, 2002.
  19. C. Contescu, D. Militello, D. Welsen, L. VanSant, "Carbon Coated Silica Carbon Material", Abs. EUROCARBON 2000, 1st World Conference on Carbon (9-13 July 2000, Berlin, Germany), vol. 2, pp. 753-754.
  20. C. Contescu, D. Militello, K. Bomba, "Carbon Coated Silica Fiber", Proc. 8th World Filtration Congress (3-7 April 2000, Brighton, UK) vol. 2, 4 pp.
  21. A. Contescu, C. Contescu, J. A. Schwarz: "Assignment of Surface Functionalities on Acidic and Basic Carbons: Their Influence on Metal Ion Binding", ACS Symposia Series, Volume 43 No 4, pp. 833-837 (216th ACS National Meeting, August 22-27, 1998, Boston)
  22. C. Contescu, J. Jagiello, J. A. Schwarz: “Proton Binding Distribution: A Scientific Basis for the Design and Construction of Supported Metal Catalysts” in “Preparation of Catalysts, VI, Studies in Surface Science and Catalysis”, vol. 91 (Eds. G. Poncelet, J. Martens, B. Delmon, P.A. Jacobs and P. Grange) Elsevier, Amsterdam, 1995, pp. 237-253.