title: Facile synthesis of reduced graphene oxide nanosheets by a sodium diphenylamine sulfonate reduction process and its electrochemical property.
abstract: We report a new method to convert graphene oxide (GO) to stable colloidal dispersion of reduced graphene oxide nanosheets (RGONS) using sodium diphenylamine sulfonate (SDAS) as a reductant, as well as itself and its redox product as the stabilizer. The as-prepared RGONS have been characterized by X-ray diffraction, Fourier transform infrared spectroscopy, UV-visible spectroscopy, thermo-gravimetric analysis, scanning and transmission electron microscopy, X-ray photoelectron spectroscopy, atomic force microscopy and Raman spectroscopy. The results indicate that the bulk of oxygen-containing functional groups from GO have been removed. Based on the cyclic voltammogram (CV) analyses, it is found that the RGONS-based material exhibits better electrochemical activity in sensing ascorbic acid than GO. The simple method provides a new efficient route for the synthesis of water-soluble RGONS on a large scale and novel composites.
authors.affiliation: School of Petrochemical Engineering and Jiangsu Province Key Laboratory of Fine Petro-chemical Technology, Changzhou University, Changzhou 213164, PR China.
authors.forename: Yunzhou
authors.initials: Y
authors.lastname: Ji
authors.forename: Qi
authors.initials: Q
authors.lastname: Liu
authors.forename: Meiling
authors.initials: M
authors.lastname: Cheng
authors.forename: Lifang
authors.initials: L
authors.lastname: Lai
authors.forename: Zhanfeng
authors.initials: Z
authors.lastname: Li
authors.forename: Yuxin
authors.initials: Y
authors.lastname: Peng
authors.forename: Yong
authors.initials: Y
authors.lastname: Yang
mesh_terms: D001557:Benzenesulfonates / Q000737:chemistry*; D004159:Diphenylamine / Q000031:analogs & derivatives* / Q000737:chemistry; D004563:Electrochemistry / Q000379:methods*; D006108:Graphite / Q000138:chemical synthesis*; D018625:Microscopy, Atomic Force; D049329:Nanostructures / Q000737:chemistry* / Q000648:ultrastructure; D036103:Nanotechnology / Q000379:methods*; D010084:Oxidation-Reduction; D010087:Oxides / Q000138:chemical synthesis*; D056951:Photoelectron Spectroscopy; D013056:Spectrophotometry, Ultraviolet; D017550:Spectroscopy, Fourier Transform Infrared; D013059:Spectrum Analysis, Raman; D013818:Thermogravimetry; D014961:X-Ray Diffraction
chemical_list: D001557:Benzenesulfonates; D010087:Oxides; C510648:sulfodiphenylamine; D006108:Graphite; D004159:Diphenylamine
keywords: Chemical synthesis; Electrochemistry; Graphene oxide; Reduced graphene oxide nanosheets; Sodium diphenylamine sulfonate