Research expertise

  

Preparation of mixed oxide catalysts (bulk and supported) and of sulfides; multicomponent catalysts; multiphases: acid and base catalysts, redox catalysts.

Materials

  • high specific surface area oxynitrides
  • supported noble metals catalysts, perovskites, hexaaluminates
  • model catalysts (oxides, noble metals, etc.) (thin films)
  • heteropolyacids
  • bio-catalysts

Preparation methods

  • impregnation, grafting, coprecipitation, citrate method, sol-gel, micro-emulsion
  • catalysts activation
  • functionalisation of the support surface: deposition of active phases on monoliths
  • non-hydrolytic sol-gel
  • aerosol processing
  • enzyme immobilisation

Shaping

  •  "Scaling-up":  study of scale transposition (size and form), extrusion, pelletizing

Study of catalytic reactions

  • selective oxidation
  • selective dehydrogenation of parafins, olefins, alcohols
  • hydrocarbons ammoxidation
  • total oxidation of organic compounds: VOC, methane, chlorinated compounds (dioxins)
  • acid catalysed reactions (hydroisomerisation), esterifications
  • base catalysed reactions (condensation, i-butane and i-pentane dehydrogenation), transesterifications
  • hydrogen production from methane, ethane, propane, butane, methanol, ethanol: partial oxidation, steam and dry reforming
  • catalytic combustion of methane, ethane, propane, butane; heat production via catalytic combustion (catalytic burner)
  • decarboxylation reactions
  • selective reactions of organic molecules (fine chemistry)
  • hydrodesulfuration, hydrodenitrogenation, hydrodeoxigenation
  • olefin metathesis 
  • bio-fuel synthesis via fatty acids esterification

Characterisations of complex composition divided solids

Concepts: study of the reaction mechanisms 

  • dynamic reactions at the catalysts surface
  • gaseous dopes effects in the feed
  • Deactivation and regeneration of catalysts 
  • In-situ study of catalysts (operando)