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  1. No Access

    Article

    Study of effect of chromium on titanium dioxide phase transformation

    MTiX samples with different atomic chromium percentages were synthesized by sol–gel method and calcined at 400 °C under air. The effects of Cr and temperature on titanium dioxide phase transition were studied. In...

    A Bellifa, L Pirault-Roy, C Kappenstein… in Bulletin of Materials Science (2014)

  2. No Access

    Article

    Green Propulsion: Catalysts for the European FP7 Project GRASP

    The Green Advanced Space Propulsion (GRASP) project investigated the issue of green propulsion and the possibility of replacing presently used toxic hydrazine propellant by green propellants. This project was ...

    Y. Batonneau, R. Brahmi, B. Cartoixa, K. Farhat, C. Kappenstein… in Topics in Catalysis (2014)

  3. No Access

    Chapter and Conference Paper

    Study of the Effect of Transition Metals on Titanium Dioxide Phase Transformation

    MTiX samples with different atomic metal percentage were synthesised by sol-gel method and calcined at 400 °C under air. The anatase-rutile transformation in TiO2 in the presence of transition metals (Cr, V and M...

    A. Bellifa, A. Choukchou-Braham… in International Congress on Energy Efficienc… (2014)

  4. No Access

    Article

    Synthesis of vanadium oxides 5 wt.%VO 2 –M x O y by sol–gel process and application in cyclohexene epoxidation

    A series of SiO2, Al2O3 and TiO2 mixed vanadium materials have been prepared from inorganic precursors via the sol–gel process and subsequently dried, calcined and reduced at elevated temperatures. Structural cha...

    S EL-KORSO, I REKKAB, A CHOUKCHOU-BRAHAM, S BEDRANE… in Bulletin of Materials Science (2012)

  5. No Access

    Article

    Catalytic oxidation of cyclohexane to cyclohexanone and cyclohexanol by tert-butyl hydroperoxide over Pt/oxide catalysts

    Heterogeneous oxidation of cyclohexane with tertiobutyl hydroperoxide was carried out on Pt/oxide (Al2O3, TiO2 and ZrO2) catalysts in the presence of different solvents (acetic acid and acetonitrile). The catalys...

    I REKKAB-HAMMOUMRAOUI, A CHOUKCHOU-BRAHAM, L PIRAULT-ROY… in Bulletin of Materials Science (2011)

  6. No Access

    Article

    Reactions of n‐hexane on Pt–Sn/Al2O3 and removal of retained hydrocarbons by hydrogenation

    n‐hexane was reacted on two Pt–Sn/Al2O3 catalysts, one prepared by coimpregnation (T) the other by using a bimetallic PtSn complex precursor (N). Both catalysts produced isomers, methylcyclopenta...

    K. Matusek, C. Kappenstein, M. Guérin, Z. Paál in Catalysis Letters (2000)

  7. No Access

    Article

    Characterization and activity of Pt-Sn/Al2O3 catalysts of different preparation: coimpregnation and new Pt-Sn precursor

    A new bimetallic Pt-Sn compound [Pt(NH3)4][SnCl6] has been used as precursor for the preparation of supported Pt-Sn/Al2O3 catalysts. A comparison of a dried sample with that prepared by coimpregnation displays di...

    C. Kappenstein, M. Saouabe, M. Guérin, P. Marecot, I. Uszkurat… in Catalysis Letters (1995)