My paper can be helpful:Article Manganese oxides and their application to metal ion and cont...

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Article Selection of a suitable method for the synthesis of copper n...

Thank you Md. Aminul Islam, for your try to help but the suggested articles is about manganese oxide.

Thanks Mahdi Ghorbani , i will try to follow the suggested procedure.

Dear Sherif Mohamed Eid ,

Very good and complete answer from Mahdi Ghorbani .

At the same time you have to keep in mind very high activity of small CuNPs, that is obtained product must be storage in the inert atmosphere. Pre-purging of reaction mixture with argon also will be appropriate.

Good luck,

Liliya