个人简介

Dr. Giorgi is interested in the chemical processes occurring on solid catalysts at the molecular/atomic level, focusing on structure-reactivity relationships. The general approach involves the comparison of well-defined model systems with laboratory-prepared real catalysts. The group uses a variety of surface science techniques, physical characterization techniques and catalytic reactivity methods. Current interests have been focused on the structure and performance of solid-oxide fuel cell anode materials.

研究领域

Physical and Theoretical Chemistry Catalysis Surface chemistry Surface science Fuel cells Materials Physical chemistry

Dr. Giorgi is interested in the chemical processes occurring on solid catalysts at the molecular/atomic level, focusing on structure-reactivity relationships. The general approach involves the comparison of well-defined model systems with laboratory-prepared real catalysts. The group uses a variety of surface science techniques, physical characterization techniques and catalytic reactivity methods. Current interests have been focused on the structure and performance of solid-oxide fuel cell anode materials.

近期论文

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J.S O’Brien, J.B. Giorgi. SOFC with NiCo-YSZ cermet anode for oxidation of CO/H2 fuel mixtures. J. Power Sources, 2012, 200, 14-20. S.M. Bukhari, J.B. Giorgi. Chemically Stable and Coke Resistant Sm1-xCexFeO3-δ Perovskites for Low Temperature Solid Oxide Fuel Cell (LT-SOFC) anode applications. J. Power Sources, 2012, 198, 51-58. C.M. Grgicak, M.M. Pakulska, J.S. O’Brien, J.B. Giorgi. Synergistic effects of Ni1−xCox-YSZ and Ni1−xCux-YSZ alloyed Cermet SOFC anodes for oxidation of hydrogen and methane fuels containing H2S, J. Power Sources 2008, 183, 26-33. C.M. Grgicak, R.G. Green, J.B.Giorgi. SOFC Anodes for Direct Oxidation of Hydrogen and Methane Fuels Containing H2S. J. Power Sources 2008, 179, 317-328. C.M. Grgicak, J.B.Giorgi. Improved Performance of Ni- and Co-YSZ Anodes via Sulfidation to NiS- and CoS-YSZ.Effects of Temperature on Electrokinetic Parameters. J. Phys. Chem. C 2007, 111, 15446-15455. D.K. Paul, J.B. Giorgi, K. Karan. Chemical and ionic conductivity degradation of ultra-thin ionomer film by X-ray beam exposure. J. Electrochem. Soc. 2013, 160, F464-F469. D. Paul, K. Karan, A. Docoslis, J.B. Giorgi, J. Pearce. Surface and bulk characteristics of ultra-thin Nafion films. Macromolecules, 2013, 46, 3461-3475. A. Ismail, J.B. Giorgi, T.K. Woo. On the atomistic interactions that direct ion conductivity and defect segregation in the bulk and surface of samarium doped ceria: a genetic algorithm study. J. Phys. Chem. C, 2012, 116, 704-713. A. Ismail, J. Hooper, J.B. Giorgi, T.K. Woo. A DFT+U Study of Defect Association and Oxygen Migration in Samarium-Doped Ceria. Phys. Chem. Chem. Phys. 2011, 13, 6116-6124. J. Hooper, A. Ismail, J.B. Giorgi, T.K. Woo. Computational insights into the nature of increased ionic conductivity in concentrated samarium doped ceria: a classical study. Phys. Chem. Chem. Phys., 2010, 12, 12969-12972. J. Hooper, A. Ismail, J.B. Giorgi, T.K. Woo. Genetic algorithm based approach to investigate doped metal oxide materials: application to lanthanide-doped ceria. Phys. Rev. B, 2010, 81, 224104/1-11. R.G. Green, L. Barre, J.B. Giorgi. Surface morphology of yttria stabilized zirconia (100) as a model catalyst support. Surf. Sci.2007, 601, 792-802. S.M. Bukhari, J.B. Giorgi. Reduced Ni doped Sm0.95Ce0.05FeO3-dperovskite based sensors for hydrogen detection. Sens. Actuators B., 2013, 181, 153-158. S.M. Bukhari, J.B. Giorgi. Redox stability of Sm0.95Ce0.05Fe1-xCrxO3-dperovskite materials. J. Electrochem. Soc., 2011, 158, H1027-H1033. S.M. Bukhari, J.B. Giorgi. Electrical conductivity dependence of Ni doped Sm0.95Ce0.05FeO3-d on surface morphology and composition. Sens. Actuators B: Chem., 2011, 155, 524-537. S.M. Bukhari, J.B. Giorgi. Cobalt doped Sm0.95Ce0.05FeO3-dfor detection of reducing gases. J. Electrochem. Soc., 2011, 158, J159-J164. S.M. Bukhari, J.B.Giorgi. Surface and redox chemistry of Sm0.95Ce0.05Fe1-xNixO3-d perovskites. Solid State Ionics, 2011, 194, 33-40. S.M. Bukhari, J.B.Giorgi. Effect of cobalt substitution on thermal stability and electrical conductivity of Sm0.95Ce0.05FeO3-din oxidizing and reducing conditions. Solid State Ionics, 2010, 181, 392-401. M.M. Pakulska, C.M. Grgicak, J.B.Giorgi. The effect of metal and support particle size on NiO/CeO2 and NiO/ZrO2catalyst activity in complete methane oxidation. Appl. Catal. A Gen. 2007 332, 124-129.