| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 1440828 | Synthetic Metals | 2014 | 7 Pages |
•SDBS could be serviceable during re-aggregation of the rGO sheets in the reduction process.•The structural of PPy chain could be restrained from damage during the synthesize process.•The highest ratio of PPy has the biggest specific capacitance of 277 F/g.
PPy (polypyrrole)/SDBS (sodium dodecyl benzenesulfonate) intercalated reduced graphene oxide (rGO) nanocomposites (PPy/GSR) were prepared via in situ oxidative polymerization of pyrrole on the SDBS interposed graphene. FE-SEM (field emission scanning microscopy), TEM (transmitting electron microscopy), UV–vis (ultraviolet and visible) absorption spectroscopy, FT-IR (Fourier transform infrared) spectroscopy, XRD (X-ray diffraction) analyzer and TGA (thermogravimetric analysis) instrument were used to characterize the morphology and structure of the samples. The results showed the disordered GSR (SDBS organo modified-rGO) disappeared and rGO existed in the form of individual graphene sheet or stacked layers in PPy matrix. The rGO serves as a support material for nano-sized PPy particles. In addition, CV (cyclic voltammetry), GCD (galvanostatic charge-discharge) and EIS (electrochemical impedance spectroscopy) techniques were used to measure the electrochemical properties with a three-electrode cell measurement. The specific capacitance of the PPy/GSR nanocomposite achieved 277 F/g for the PPy/GSR 9:1 sample.
