PtTe NWs are made from Galvanic Displacement reaction of H2PtCl6 and Te NWs.Taking out the reaction mixtures at different time interval and taking FESEM image is not helpful because of the presence of ethylene glycol (EG).
Measuring in-situ light scattering, UV-spectra or refractive index may work.
Ummm.... Different factors might play an important role in your case Manjeet.
For the time being, I would suggest you design a few more experiments. For example, you should perform a series of experiments with different ratios of EG. You can try 0%, 20%, 40%, 60%, 80% and 100% EG to investigate the more detailed role being played by EG. Now once you find the optimized condition, say it is 40% EG and 60% water, then you should perform one more series of experiments while changing the time of your reaction. I believe that once you finish with these experiments, you would be much more clear with the growth mechanism.
Good luck!
You could also try taking a drop of the reaction mixture at different time-points and preparing TEM samples. If size is an issue, perhaps dilute a few drops of the reaction mixture in water and try Nanoparticle Tracking Analysis. It will also give you an estimate of the nanowire concentration at different time-points.
http://onlinelibrary.wiley.com/doi/10.1002/chem.201000341/full This may give some helpful inside (the paper deals with EG synthesis of silver nanocubes, including characterization during synthesis).
Good luck!
Thank you Teodora Miclaus , Muhammad Fahad Ehsan and Titus Sobisch for replying.
Teodora i dont know much about nanoparticle tracking analysis.would you please explain. i wanted to see the evolution of morphology so even if i do UV or measure Refractive index that would not confirm what i want. also if i take the reaction mixtures at different times and do FESEM or TEM how do i quench the reaction at that particlur time.
Mr Ehsan i am actually doing the experiments and trying to find the mechanism of growth by varying the reaction parameters. thank you very much
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