Hello,

I think solvent such as ethanol are most commonly solvents. in addition the catalysts prepared in ethanol has normally high metallic dispersion which further justify of its application.

Dear Garba,

While synthesising an effective catalyst you have to take care of shape, size and surface of the material. So, solvent play an important role in designing and controlling the properties of your material. As you have provided the example of TTIP to synthesise TiO2 NP's, the reaction is a hydrolysis process where TTIP reacts with water. In order to optimise the hydrolysis process and to synthesise material of your choice you have to be influenced by the sol-gel chemistry. That is why different solvents are reported in order to control the hydrolysis process and to fabricate suitable material, but in case of TTIP you have to make sure TTIP is not exposed to moisture before reaction and isopropyl alcohol is most favoured in this case.

Regards

There are more answers depending on the synthesis path.

AS already outlined by Dr. Rather, one issue is the (lack of) solubility of the precursor in the "solvent". Further on the interactions solvent - precursor will control nucleation (in a less extend) and particle growth and this is one of the most important thing. There cannot be given general combinations and for any given precursor, the polarity of the solvent (as compared to the polarity of the precursor) is an important property.

Thank you all, Shavandi, Rather and Duta. I appreciate