Pabitra Choudhury 1205 Sean Street Socorro, NM 87801 Email: [email protected]; Ph. 412-953-0845 (C), 575-835-5966 (O) Professional Preparation: University of South Florida, Chemical Engineering, Ph.D., 2009 University of South Florida, Chemical Engineering, M.S., 2008 Indian Institute of Technology, Chemical Engineering, M.Tech., 2002 Indian Institute of Technology, Chemical Engineering, B.Tech., 1999 Professional Appointments: Assistant Professor, Department of Chemical Engineering, New Mexico Institute of Mining and Technology, Socorro, NM (8/2012 to present). Postdoctoral Research Associate, Department of Chemical and Petroleum Engineering, University of Pittsburgh, Pittsburgh, PA (01/2010 to 8/2012). Research Assistant, Department of Chemical and Biomedical Engineering, University of South Florida, Tampa, FL (1/2006 to 12/2009). Lecturer, Department of Chemical Engineering, Madhav Institute of Technology & Science, Gwalior, India (04/2002 to 08/2005). Research Interests: Computational modeling and simulations of advanced materials and processes to understand the relevant physics and chemistry; including but not limited to provide deeper understanding of nanoscale structures and functionalities of the new materials to control their properties at the atomistic level, thus interpret experimental observations, understand the mechanisms, and guide the development of new materials and experiments to address some key problems related to energy, environment and advanced electronics. Research Experience: Assistant Professor, New Mexico Institute of Mining and Technology 1 Modulation of Fermi level of Metal phthalocyanine (MPc) deposited on a nonreactive substrates (e.g., HOPG and Au(111)) via adsorption of oxidative analytes on the surfaces for sensing applications. Design of Flexible, Mechanically Robust and Electrolyte Free Sub-nanometer Scale Solar Energy Conversion Materials. Phthalocyanine/2D solid state heterostructure materials for electronic device applications. Elucidate the fundamental insights of hetero-metallic catalyst nanoparticles to improve the reactivity of alcohol dehydrogenation reaction. Post-doctoral research associate, University of Pittsburgh Designing of novel anhydrous proton transport membranes based on functionalized graphene for energy applications Understanding of proton transport mechanism at the atomistic level Calculation of transport, kinetic and thermodynamics properties of these membranes Designing of advanced sorbent materials (alkali-doped SWNT/HOPG) with enhanced sorption capability and chemical reactivity for chemical agents and toxic industrial compounds Understanding of fundamental mechanism of artificial defects creation via ion bombardment on the graphite surface, and also growth, stability and reactivity of alkali metal clusters preferentially nucleate on those defect sites Fundamental understanding of the alkali metal intercalation into HOPG galleries through the artificially created defect sites Identification of detailed reaction mechanisms of toxic carbon—chlorine bond scission and also determination of low-energy reaction channels for chloroalkanes dissociation on the lithiated SWNT and HOPG surfaces Prediction of reaction kinetics data at the experimental conditions and developing micro-kinetic model for the chloromethane dissociation reaction on both lithiated SWNT and HOPG surfaces Graduate research assistant, University of South Florida (2006-2009) 2 Development of reversible hydrogen storage material at low temperature based on both experimental and theoretical approach Predicted material crystal structure and stability, electronic properties, thermo physical properties and analyzed the chemical bonding of the solid state materials using ab initio density functional theory calculations Predicted reaction dehydrogenation mechanisms of nanocatalyst doped / undoped complex materials Developed the mechano-chemical synthesis procedure for the preparation of borohydrides / nanocatalyst doped complex composite hydrides Developed a purification process to extract impurities under nitrogen / vacuum Schlenk manifold technique using dry non-polar solvents Investigated the reaction pathway schemes for nanocatalyst doping and studied the effects of nanocatalytic doping on reaction activation energy of the dehydrogenation reaction of complex hydrides Studied the effects of nanocatalyst doping on the reversible dehydrogenation and/or rehydrogenation characteristics Awards and Honors: XSEDE (sponsored by NSF) and CNM (ANL) Grant of more than 3.5 million hours of supercomputer time Best research assistant (RA) award, Dept. of Chem. & Biomed. Eng., University of South Florida Distinguished graduate achievement award, University of South Florida Graduate Aptitude Test in Engineering (GATE) scholarship, Govt. of India National Talent Scholarship, Govt. of India Teaching Experience: Assistant Professor, New Mexico Institute of Mining and Technology Tenure track Assistant Professor in the Chemical Engineering Department and teaching courses: Engineering Thermodynamics; Heat and Mass Transfer; Nanosystems Modeling. 3 Teaching Assistant, University of South Florida Modeling and Analysis Engineering Systems, and Transport Phenomena: Graded home work, prepared answer solutions and assisted students individually for help on home work and projects. Lecturer, Madhav Institute of Technology & Science, Gwalior, India (2002-2005) Tenured lecturer in the Chemical Engineering Department and taught Fluid Particle Mechanics, Chemical Engineering Thermodynamics, Heat Transfer, Chemical Reaction Engineering, Computer Aided Design of Heat Transfer Equipments, and Process Dynamics & Control courses. Laboratory Instructor, Madhav Institute of Technology & Science, Gwalior, India Fluid Particle and Fluid Mechanics Laboratory Heat Transfer Laboratory Chemical Reaction Engineering Laboratory Process Dynamics and Control Laboratory Professional Skills: Computer: FORTRAN, C and C++ programming languages; Shell, Python and Perl scripts languages; Windows, Unix and Linux operating systems; COMSOL (finite element method), Mat Lab, Octave, VASP & CPMD (density functional theory), LAMMPS (molecular dynamics), and TAMKin (thermodynamic and kinetic analysis) packages Experiments: X-ray Powder Diffraction; Scanning Electron Microscopy (SEM); Energy Dispersive X-ray Spectroscopy (EDS); IR Spectroscopy; Sputtering; Differential Scanning Calorimetry (DSC); Thermal Gravimetric Analysis (TGA); Pressure Concentration Temperature (PCT); Gas Chromatography (GC); Temperature Program Desorption (TPD); Schlenk Manifold Apparatus Selected Publications: Peer Reviewed Journal Articles 4 Mandeltort, L.; Choudhury, P.; Johnson, J. K. and Yates, J. T. Jr. “Methyl Radical Reactivity on the Basal Plane of Graphite” J. Phys. Chem. C 116, 18347−18357 (2012). Mandeltort, L.; Choudhury, P.; Johnson, J. K. and Yates, J. T. Jr. “Reaction of the Basal Plane of Graphite with the Methyl Radical” J. Phys. Chem. Lett. 3, 1680−1683 (2012). Büttner, M.; Choudhury, P.; Johnson, J. K. and Yates, J. T. Jr., “Vacancy Clusters as Entry Ports for Cesium Intercalation in Graphite.” Carbon 49, 3937 (2011). Choudhury, P. and Johnson, J. K., “Methyl Chloride Reactions on Lithiated Carbon Nanotubes: Lithium as Both Reactant and Catalyst.” J. Phys. Chem. C 115, 11694 (2011). Mandeltort, L.; Büttner, M.; Yates, J. T. Jr.; Choudhury, P.; Xiao, L. and Johnson, J. K., “Carbon-Chlorine Bond Scission in Li-Doped Single-Walled Carbon Nanotubes—Reaction of CH3Cl and Lithium.” J. Phys. Chem. C 114 17148 (2010). Choudhury, P.; Bhethanabotla, V. R. and Stefanakos, E., “First Principles Study to Identify the Reversible Reaction Step of a Multinary Hydrogen Storage "Li-Mg-B-N-H" System.” Int. J. Hydrogen Energy 35 9002 (2010). Choudhury, P.; Bhethanabotla, V. R. and Stefanakos, E., “Manganese Borohydride as a Hydrogen Storage Candidate: First-principles Crystal Structure and Thermodynamics.” J. Phys. Chem. C 113, 13416 (2009). Choudhury, P.; Srinivasan, S.; Bhethanabotla, V. R.; Goswami, Y.; McGrath, K. and Stefanakos, E., “Nanocatalyzed Li-Mn-B-H System as a New Hydrogen Storage Candidate.” Int. J. Hydrogen Energy 34, 6325 (2009). Choudhury, P.; Bhethanabotla, V. R. and Stefanakos, E., “Identification of a New Stable Phase for High Capacity Hydrogen Storage Material Zn(BH4)2 From Density Functional Theory and Lattice Dynamics.” Phys. Rev. B 77, 134302 (2008). Choudhury, P.; Bhethanabotla, V. R. and Stefanakos, E., “Ni Induced Destabilization Dynamics of Crystalline Zinc Borohydride.” Appl. Phys. Lett. 92, 134101 (2008). Abstracts (in print or/and accepted), technical presentations and invited talk Park, J. H.; Royer, J. E.; Chagarov, E.; Kaufman-Osborn, T.; Edmonds, M.; Kent, T.; Lee, S.; Trogler, W. C.; Choudhury, P. and Kummel, A. C. "Atomic Imaging of Chemical Sensing 5 Mechanisms on Copper Phthalocyanine on Au and HOPG Substrates." ICPP-8 2014, Istanbul, Turkey. (Invited talk) Choudhury, P, Park, J. H. and Kummel, A. C. "A Combined Theoretical and Experimental Study of Modulation of the Fermi Level of MPc via NO adsorption" AIChE Annual Meeting 2013, San Francisco, CA. Choudhury, P.; Al-saidi, W. A. and Johnson, J. K., “Facile Anhydrous Proton Transport on Hydroxyl Functionalized Graphene” AIChE Annual Meeting 2013, San Francisco, CA. Choudhury, P.; Johnson, J. K.; Mandeltort, L. and Yates, J. T. Jr.," Chemical Reaction of •CH3 with the Basal Plane of Graphite" AIChE Annual Meeting 2012, Pittsburgh, PA. Choudhury, P. and Johnson, J. K., “Hydroxyl Functionalized Graphene: A Promising Anhydrous Proton Exchange Membrane.” AIChE Annual Meeting 2012, Pittsburgh, PA. Choudhury, P. and Johnson, J. K., “Proton Transport Across a Hydroxyl Functionalized Graphene Membrane.” AIChE Annual Meeting 2011, Minneapolis, MN. Choudhury, P.; Johnson, J. K.; Mandeltort, L.; Büttner, M. and Yates, J. T. Jr., “Design of Advanced Sorbent Materials with Enhanced Sorption Capability and Chemical Reactivity.” Adsorption at the Nanoscale: A New Frontier in Fundamental Science and Applications 2011, Columbia, MO. Johnson, J. K.; Chen, D. and Choudhury, P., “Functionalized Nanoporous Sorbents: From Entrance Effects to Reactive Centers.” Adsorption at the Nanoscale: A New Frontier in Fundamental Science and Applications 2011, Columbia, MO. Choudhury, P. and Johnson, J. K., “Chloromethane Reactions (C—Cl Bond Scission) on Lithiated Carbon Nanotubes: Lithium as Both Reactant and Catalyst.” PCCS Spring Meeting 2011, Pittsburgh, PA. Choudhury, P. and Johnson, J. K., “Capturing Toxic Chemicals at Low Concentrations Using Lithiated SWNT: A Combined Experimental and Theoretical Study.” AIChE Annual Meeting 2010, Salt lake city, Utah. Choudhury, P. “Capturing toxic chemicals at low concentrations using lithiated SWNT: A combined experimental and theoretical study”. PA-OH-WV Simulators Meeting, 2010, Pittsburgh, PA. 6 Shankar, C.; Kumar, P.; Choudhury, P. and Johnson, J. K., “Modeling Adsorption and Transport in Nanotubes with Realistic Defects and Entrance Functional Groups.” AIChE Annual Meeting 2010, Salt lake city, Utah. Choudhury, P.; Bhethanabotla, V. R. and Stefanakos, E., “Borohydride for Reversible Hydrogen Storage.” MRS Meeting 2009, Boston, MA. Choudhury, P.; Srinivasan, S.; Bhethanabotla, V. R. and Stefanakos, E., “LiMn(BH4)3 for Onboard Hydrogen Storage.” AIChE Annual Meeting 2009, Nashville, TN. Choudhury, P.; Balakrishnan, N; Bhethanabotla, V. R. and Stefanakos, E., “Complex Borohydride for Reversible Hydrogen Storage.” AIChE Annual Meeting 2009, Nashville, TN. Choudhury, P.; Bhethanabotla, V. R. and Stefanakos, E., “Dehydrogenation Thermodynamics of Hydrogen Storage Material Manganese Borohydride: First-Principles Study.” AIChE Annual Meeting 2008, Philadelphia, PA. Choudhury, P.; Srinivasan, S.; Bhethanabotla, V. R. and Stefanakos, E., “New Material Li-MnB-H System as Hydrogen Storage Candidate.” AIChE Annual Meeting 2008, Philadelphia, PA. Balakrishnan, N; Choudhury, P.; Bhethanabotla, V. R. and Joseph, B., Density Functional Theory Studies on a Reversible Hydrogen Storage "Li-Mg-B-N-H" system. AIChE Annual Meeting 2008, Philadelphia, PA. Choudhury, P.; Srinivasan, S.; Bhethanabotla, V. R. and Stefanakos, E., “Transition Metal Complex Hydrides for Vehicular Application.” FLAVS Meeting 2008, Orlando, FL. Choudhury, P.; Bhethanabotla, V. R. and Stefanakos, E., “Ab-initio Calculations for Ni Additives in Zn(BH4)2.” AIChE Annual Meeting 2007, Salt lake city, Utah. Choudhury, P.; Bhethanabotla, V. R. and Stefanakos, E., “Thermodynamic Stability of Hydrogen Storage Material Zn(BH4)2: First Principles Study.” AIChE Annual Meeting 2007, Salt lake city, Utah. Choudhury, P.; Srinivasan, S.; Bhethanabotla, V. R. and Stefanakos, E., “Synthesis and Characterization of Pure Zn(BH4)2 Single Crystal.” AIChE Annual Meeting 2007, Salt lake city, Utah. 7 Choudhury, P.; Bhethanabotla, V. R. and Stefanakos, E., “Ab-initio Study of High Theoretical Hydrogen Storage Capacity Material Zn(BH4)2.” Florida Annual Meeting and Exposition (FAME) of the American Chemical Society 2007, Orlando, FL. Publications Submitted and in Progress Park, J. H.; Choudhury, P. and Kummel, A. C. "NO Adsorption on Copper Phthalocyanine Functionalized Graphite " (submitted to J. Phys. Chem. C). Choudhury, P.; Al-saidi, W. A. and Johnson, J. K., " Facile Anhydrous Proton Transport on Hydroxyl Functionalized Graphene " (in progress). Synergistic Activities Advising undergraduate students and helping them in course selection as per their career goal Serving as a judge of New Mexico Science and Engineering Fair Grand review panel member for FCT- The Portuguese Foundation for Science and Technology, Chemistry and Chemical Engineering Division Reviewer of journals (Industrial & Engineering Chemistry Research, Journal of Crystal Growth and Design, Int. Journal of Hydrogen Energy, Physical Chemistry Chemical Physics, ACS Sustainable Chemistry & Engineering) Collaborators and Co-Editors A. Kummel (UCSD), S. Fulerton (U. of Notre Dame), J. K. Johnson (U. Pittsburgh), M. Heagy (NMT), S. K. R. S. Sankaranarayanan (ANL), J. T. Yates, Jr. (U. Virginia), W. Ai-Saidi (U. Pittsburgh), V. R. Bhethanabotla (USF), E. Stefanakos (USF), S. Srinivasan (Tuskegee), and Y. Goswami (USF). Graduate and Postdoctoral Advisor/Supervising Professor Ph.D. Supervisors: Prof. Venkat. R. Bhethanabotla and Prof. Elias Stefanakos (U. South Florida) Postdoctoral Advisor: Prof. J. Karl Johnson (U. Pittsburgh) Students Advising Total Number of Graduate Students Advised: 1 (Daniel Leonard, MS) 8 Total Number of Under Graduate Students Advising: 2 (Joseph Alden, BS and Sean Mussell, BS) 9
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