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Title: Electrochemical synthesis and characterization of stable colloidal suspension of graphene using two-electrode cell system

The present work reports the synthesis and characterization of graphene via electrochemical exfoliation of graphite rod using two-electrode system assisted by Sodium Dodecyl Sulphate (SDS) as a surfactant. The electrochemical process was carried out with sequence of intercalation of SDS onto the graphite anode followed by exfoliation of the SDS-intercalated graphite electrode when the anode was treated as cathode. The effect of intercalation potential from 5 V to 9 V and concentration of the SDS surfactant of 0.1 M and 0.01 M were investigated. UV-vis Spectroscopic analysis indicated an increase in the graphene production with higher intercalation potential. Transmission Electron Microscopy (TEM) analysis showed a well-ordered hexagonal lattice of graphene image and indicated an angle of 60° between two zigzag directions within the honeycomb crystal lattice. Raman spectroscopy analysis shows the graphitic information effects after the exfoliation process.
Authors:
; ;  [1] ;  [2] ;  [3]
  1. Department of Chemistry, Faculty of Science, Universiti Teknologi Malaysia (UTM), 81310 Skudai, Johor (Malaysia)
  2. Institute of Fluid Sciences, Tohoku University, Sendai 980-8577 (Japan)
  3. Ibnu Sina Institute for Fundamental Science Studies, Universiti Teknologi Malaysia (UTM), 81310 Skudai, Johor (Malaysia)
Publication Date:
OSTI Identifier:
22488607
Resource Type:
Journal Article
Resource Relation:
Journal Name: AIP Conference Proceedings; Journal Volume: 1669; Journal Issue: 1; Conference: SCMSM 2014: 23. scientific conference of Microscopy Society Malaysia, Tronoh (Malaysia), 10-12 Dec 2014; Other Information: (c) 2015 AIP Publishing LLC; Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
36 MATERIALS SCIENCE; ANODES; CATHODES; CLATHRATES; CONCENTRATION RATIO; ELECTROCHEMISTRY; GRAPHENE; GRAPHITE; HEXAGONAL LATTICES; RAMAN SPECTROSCOPY; RODS; SODIUM; SULFATES; SURFACTANTS; SUSPENSIONS; SYNTHESIS; TRANSMISSION ELECTRON MICROSCOPY