copper nanoparticles – TechConnect Briefs

Ferromagnetism and Giant Paramagnetism in Cu@C nanocomposites

Estiphanos M., Sharoyan E., Gyulasaryan H., Manukyan A., Mirzakhanyan A., Bernal O., Kocharian A., California State University Los Angeles, US

Different size copper nanoparticles coated by carbon are synthesized by solid phase pyrolysis of polycrystalline phthalocyanine (CuPc, Pc= C32N8H16). The structural properties of obtained powder products are characterized by XRD and Raman spectroscopy. The morphologies [...]

Biological synthesis of copper nanoparticles using plant extract

Lee G., Lee H.J., Lee G., Lee H.J., Jang N.R., Yun J.H., Song J.Y., Kim B.S., Chungbuk National University, KR

Copper nanoparticles were biologically synthesized using plant leaf extract as reducing agent. On treatment of aqueous solutions of CuSO4•5H2O with leaf extract (Magnolia), stable copper nanoparticles were formed. UV-vis spectroscopy was used to monitor the [...]

In-situ synthesis of Cu nanoparticles on MWCNTS using Microwave irradiation

Rangari V.K., Dey S., Jeelani S., Tuskegee University, US

Microwave irradiation technique is successfully used to synthesize the copper coated MWCNTS in a one-pot reaction with and without surfactant. Since the graphite carbon absorbs the (in 2min 1100oC) maximum microwave radiation had led to [...]