Abstract: Ti-ZSM-5 was synthesized by hydro thermal crystallization in the presence of fluoride via using a non-alkaline medium. pH values were 5⁷. SEM showed perfect Ti-ZSM-5 crystals and a large single crystal growing from the favourable medium. Substitution of titanium for silicon in the ZSM-5 framework led to a decrease of crystal size and of the length/width ratio. Electron microprobe analysis indicated a homogeneous distribution of titanium in the ZSM-5 framework. The unit cell parameters of the Ti-ZSM-5 determined by XRD increased with an increase in titanium content in the framework. TiO₄tetrahedron vibrations were found in the IR spectrum. Si（1Ti） peakwas seen in the 29Si MAS NMR spectrum at -1O1ppm（from TMS） and 13CMAS NMR analysis verified the effect of （C₃H₇）4N+F- occluded in thechannels. XPS study on the precursors, calcined and H₂O₂ adsorbed Ti-ZSM-5 was performed and some interesting results were observed.

Key words: Ti-ZSM-5, Non-alkaline, Synthesis