Preparatio n of flowerlike copp er nanoparticles by chemical reduction

The in trinsic properties of m etal nanoparticles are sensitive to th eir composition, size, shape, crystallinity, and structure. It has been realized that many metals can now be successfully synthe sized with controllable size. Recen tly, the intensive resear ch motivation for the shape-controlled synthes is of metal nanoparticl es are based on the fact that in man y cases it allows one to fine tune the properties with a greater versatility than can be ach ieved other wise. Among synthesis methods, chemical reductionis the most preferred, because this meth od is simple and economical, and it can realize better size and size distribution contr ol by optimizing the experimental p arameters, such as the molar ratio of the capping agent with the precursor salt and the ratio of reducing agent with the precursor salt. Here in we re port a simple method for flowerlike synthesis of copper with using ch emical redu ction. Copp er (II) sulfat e was taken as the me tal precursor and ascorbic acid in the presenc e an appropriate amou nt of NaOH as reducing agent and a nhydride maleic as surfactant.When (COPPER(II)sulfate)/anhydride maleic) mo lar ratio was ۱۰۰/۱,flowerlike copper nanoparticles wer e prepared.

کلیدواژه ها:

Flowerlike ، Copp er nanoparticles ، Chemical reduction ، Ascorbic acid