• 文献标题:   Microwave-assisted reduction method under nitrogen atmosphere for synthesis and electrical conductivity improvement of reduced graphene oxide (rGO)
  • 文献类型:   Article
  • 作  者:   ISKANDAR F, HIKMAH U, STAVILA E, AIMON AH
  • 作者关键词:  
  • 出版物名称:   RSC ADVANCES
  • ISSN:   2046-2069
  • 通讯作者地址:   Inst Teknol Bandung
  • 被引频次:   14
  • DOI:   10.1039/c7ra10013b
  • 出版年:   2017

▎ 摘  要

A facile method to synthesize rGO using a microwave-assisted method under N-2-atmosphere conditions is reported. Two different reducing agents were used in this research, hydrazine hydrate and L-ascorbic acid (L-AA). The reduction of graphene oxide was completed in 3 minutes by the microwave-assisted method under N-2-atmosphere conditions. The structures and morphologies of both rGOs prepared by this new method were confirmed by attenuated total reflectance-Fourier transform infrared (ATR-FTIR) spectrometry, X-ray diffraction (XRD), Raman spectroscopy, scanning electron microscopy (SEM), transmission electron microscopy (TEM) and energy dispersive X-ray spectrometry (EDX), confirming the formation of rGO. Four-point probe measurements showed an electrical conductivity of 18.10 S cm(-1)d for the rGO reduced by hydrazine hydrate and 12.02 S cm(-1) for the rGO reduced by L-AA. Combining this new method with annealing at 300 degrees C for 30 min resulted in a higher electrical conductivity: up to 23.26 S cm(-1) for the rGO reduced by hydrazine hydrate and up to 16.19 S cm(-1) for the rGO reduced by L-AA. This study provides a new perspective on synthesizing rGO with high electrical conductivity using an effective and efficient method.