Preliminary Study on Synthesis of Composite rGO/Ni by Microwave Assisted Method
[摘要] Composite reduced graphene oxide-nickel (rGO/Ni) was successfully synthesized by wet chemical process via microwave assisted method. The nickel fraction was varied 0%, 5% and 20%. Crystallinity, morphology, chemical composition, chemical bonding, and conductivity were investigated by X-ray diffraction (XRD), scanning electron microscopy (SEM), elemental dispersive X-ray spectroscopy (EDS), Fourier transform infrared spectroscopy (FTIR), 4 point probes and electrochemical impedance spectroscopy (EIS). Based on the XRD patterns, the crystal sizes were 1.62 nm for 5% rGO/Ni and 1.64 nm for 20% rGO/Ni respectively. Furthermore, vibration of C=C aromatic stretching was detected in the FTIR spectra, which corresponds to rGO fingerprint. These results give a new perspective on synthesis of composite rGO/Ni.
[发布日期] [发布机构] Department of Physics, Institut Teknologi Bandung, Bandung; 40132, Indonesia^1;Research Center for Nanosciences and Nanotechnology, Institut Teknologi Bandung, Bandung; 40132, Indonesia^2
[效力级别] 物理学 [学科分类]
[关键词] 4-point probe;Chemical bondings;Chemical compositions;Crystallinities;FT-IR spectrum;Microwave-assisted methods;Reduced graphene oxides;Wet chemical process [时效性]