Sol gel technique is a promising low-temperature route which provides good homogeneity for the preparation of metallic nanoparticles in thin coatings in a thermally stable dielectric solid oxide matrix such as SiO2.

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Although sol-gel method for the synthesis of NPs is better for control the size and morphology of the NPs, combustion is also promising route for fabrication of some NPs, such as metal oxides. Therefor, I think , it depends on the kind of NPs you're going to synthesize.

That depends on the what material you are going to use? Some time sol-gel is better and some time combustion also better.

Dear all researchers

@sandeep Chandrashekharappa

@Mohammad Kooti

@ sandeep pandey

Thanks for your valuable feedback

Thank you sir