I used copper to produce nanoclusters. I changed different ratios and concentrations of Cu and pH but I got particles over 100 nm and I couldn't decrease the size. How could I get smaller nanoclusters?
How are you producing your nanoclusters? By reduction? By atomization? What is the [C] of the copper precursor? What is the form of your Cu to start with? Lower concentrations tend to favor smaller sizes. Also see for a primer:
February 18th, 2016 Metal colloids - their preparation, application and characterization
https://www.brainshark.com/malvern/vu?pi=529368070&b=1&tx=120486&c1=22
Hello,
I am agreed with Mr. Alan F Rawle,
Lower concentrations of copper source will work for producing smaller nanoclusters.
and also depends on your reaction conditions.
All the well wishes for your endeavor.
Dear Jing Li,
As written by Mr Alan and Mr Patil, method of preparation is very important, then the concentration is also important, are you using any stabiliser or any other solvent in your preparation? some times that also plays an important role, environmental conditions also plays an important role, temperature also effects.
Please, specify these things then you may get the proper suggestion.
The below given links may be helpful for you:
http://onlinelibrary.wiley.com/doi/10.1111/j.1365-2818.1993.tb03279.x/pdf
https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3813263/
Thank you and all the best
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