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  1. No Access

    Article

    Catalytic activity and some related spectral features of yttria-stabilised cubic sulfated zirconia

    Cubic sulfated zirconia (c-SZ) was prepared by sulfating phase-stabilised c-ZrO2, and its properties are compared with those of tetragonal (t-SZ) and monoclinic (m-SZ) systems. ZrO2 crystalline phases have been i...

    C. Morterra, G. Cerrato, G. Meligrana, M. Signoretto, F. Pinna… in Catalysis Letters (2001)

  2. No Access

    Article

    Isomerization of n-butane over Fe,Mn-promoted sulfated zirconia: catalytic activity and surface features of the catalyst

    The catalytic properties of Fe,Mn-promoted sulfated zirconia catalysts have been tested as a function of: (i) the temperature of the preliminary calcination step; (ii) the conditions of the catalyst activation...

    C. Morterra, G. Cerrato, S. Di Ciero, M. Signoretto, A. Minesso… in Catalysis Letters (1997)

  3. No Access

    Article

    Fibroblast growth and polymorphonuclear granulocyte activation in the presence of a new biologically active sol–gel glass

    The search for chemical devices to be used in clinical orthopaedics must find substances that are biocompatible and do not elicit inflammatory responses in vivo. To this end, a new form of glass has been prepa...

    G PALUMBO, L AVIGLIANO, G STRUKUL, F PINNA… in Journal of Materials Science: Materials in… (1997)

  4. No Access

    Article

    Pd-SiO2 catalysts. stability of β-PdHx as a function of Pd dispersion

    Measurements of β-PdHx stoichiometry by hydrogen TPD and of Pd dispersion by CO chemisorption has shown that in Pd−SiO2 catalysts the formation of β-PdHx is more and more hindered with the increase of Pd dispersi...

    F. Pinna, M. Signoretto, G. Strukul, S. Polizzi… in Reaction Kinetics and Catalysis Letters (1997)

  5. No Access

    Article

    Platinum promoted zirconia-sulfate catalysts: one-pot preparation, physical properties and catalytic activity

    A new innovative methodology for the single-stage preparation of ZrO2-SO4 and Pt/ZrO2-SO4 catalysts is reported, based on the sol-gel technique. Catalysts are characterized by analysis, XRPD, BET and IR methods a...

    M. Signoretto, F. Pinna, G. Strukul, G. Cerrato, C. Morterra in Catalysis Letters (1996)

  6. No Access

    Article

    Isomerization ofn-butane on sulfated zirconia: Evidence for the dominant role of Lewis acidity on the catalytic activity

    The catalytic activity of a ZrO2/SO4 catalyst in the isomerization ofn-butane at 423 K is reversibly suppressed by addition of CO. IR analysis of the adsorption of CO indicates that the only σ-coordination of CO ...

    F. Pinna, M. Signoretto, G. Strukul, G. Cerrato, C. Morterra in Catalysis Letters (1994)

  7. No Access

    Chapter

    Dioxygen Ligand Transfer from Platinum to Molybdenum. Isolation of a Highly Reactive Molybdenum(VI) Oxoperoxo Dimer

    The reaction of Pt(O2)(PPh3)2 with Mo(O)2(mesityl)2 (mesityl = 2,4,6-Me3C6H2) in pyridine results in the transfer of the dioxygen ligand from platinum to molybdenum giving, in the presence of PPh4CI, a molybdenum...

    H. Arzoumanian, J. Sanchez, G. Strukul… in The Activation of Dioxygen and Homogeneous… (1993)

  8. No Access

    Chapter

    Enantioselective Lactonization of Cyclic Ketones with H2O2 Catalyzed by Complexes of Platinum(II)

    The Baeyer-Villiger oxidation of ketones to give esters is an oxygen transfer reaction typical of organic peroxy acids. We have recently reported that this reaction can be easily accomplished with hydrogen per...

    G. Strukul, A. Gusso, F. Pinna in The Activation of Dioxygen and Homogeneous… (1993)

  9. No Access

    Article

    The influence of a second metal component (Cu, Sn, Fe) on Pd/SiO2 activity in the hydrogenation of 2,4-dinitrotoluene

    The catalytic activity of palladium in the hydrogenation of 2,4-dinitrotoluene is reduced by the addition of Cu or Sn. Upon addition of Fe, the activity increases. The formation of highly dispersed Pd-Fe bimet...

    A. Benedetti, G. Fagherazzi, F. Pinna, G. Rampazzo, M. Selva… in Catalysis Letters (1991)