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Bulletin of the Korean Chemical Society (BKCS)

ISSN 0253-2964(Print)
ISSN 1229-5949(Online)
Volume 35, Number 8
BKCSDE 35(8)
August 20, 2014 

Easy Preparation of Nanosilver-Decorated Graphene Using Silver Carbamate by Microwave Irradiation and Their Properties
Sang-Woo Yun, Jae-Ryung Cha, Myoung-Seon Gong*
Silver nanoparticles, 1-Amino-4-methylpiperazine, Silver alkylcarbamate, Microwave, Graphene/Ag-NPs composites
We have successfully decorated reduced graphene oxide (RGO) with silver nanoparticles (AgNPs) by microwaving silver alkylcarbamate for 13 seconds using 1-amino-4-methylpiperazine. Uniform AgNPs (20– 40 nm) were effectively prepared, and 1-amino-4-methylpiperazine acted as a reaction medium, reducing agent, and stabilizer. Particle size and morphology were correlated with the silver alkylcarbamate concentration and microwave time. The graphene/AgNPs composites were characterized by Raman, X-ray diffraction, and scanning electron microscopy to confirm that the AgNPs were uniformly decorated onto the graphene. Measurements of the transparent conductive property at room temperature indicated that these graphene/ AgNPs nanosheets with 55.45% transmittance were electrically continuous with a sheet resistance of approximately 43 kΩ/□.
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