Effect of tungsten amount on catalytic behavior of mixed WTi-pillared clay

Mixed tungsten-titanium pillared clays are prepared with various amounts of tungsten then characterized following different techniques. the n-hexane isomerisation is carried out in the gas phase in order to test the catalytic activity of the samples. the structural,textural,acidic and catalytic properties are largely influenced by the tungsten amounts added to the clay during the mixed intercalation process. enhanced acidity and porosity by mixed pillaring resulted in a selective catalysis allowing the formation of mono-branched isomers as major products. the best mixed wti-pillared clay can be used in the future as a support for metal transition or as a catalyst of other chemical reaction requiring surface acidity.