Preparation of Graphene Oxide/Polyaniline Nanocomposite with Assistance of Supercritical Carbon Dioxide for Supercapacitor Electrodes

Abstract

Figure S1. (A) TEM image of GO on the micro grid. (B) Tapping mode AFM image of GO on freshly cleaved silicon. (C) Height profile throughout the line shown in part (B).

Water Dispersible Graphene Sheets Produced from Unassembled Graphene–Polyaniline Nanohybrids

“…The results (Fig. 4) reveal that a single-layer of WD-G sheet is approximately 0.8 nm in thickness for the sheet-tosubstrate, very close to the reported value of a pristine RGO sheet, 11 again indicating that no substantial PANI coating layer remains on the basal plane of resultant sheet. Additionally, as statistically estimated from the AFM image, over 80% of the graphitic sheets in WD-G are single layers.…”

Surfactant-treated graphene covered polyaniline nanowires for supercapacitor electrode

“…While oxidative polymerization of ANI, some of ANI monomers were polymerized on the graphene surfaces because of the doping via the π-π interactions of ANI and GO. The coating of PANI on the graphene sheets increases the contact area of the electrode, improving the electrochemical performance of the G/PANI nanocomposites [7]. The absence of Mn peak in the energy dispersive X-ray analysis (EDAX) spectrum of the G/PANI nanocomposites strongly proved the As shown in the TGA curve in Figure 3, the initial weight loss of graphene at approximately 100 C occurred because of the thermal decomposition of the residual water.…”

Polyaniline/MoSX Supercapacitor by Electrodeposition

“…In the CV curve of PANI, it shows a couple of conspicuous redox peaks at about +0.23 V and +0.09 V vs. Ag/AgCl, which apparently result from the conversion of PANI between a conducting state (emeraldine salt) and a semiconducting state (leucoemeraldine base). 13,15,43,44 It is of importance to mention that PANI/MoS X presents higher capacitance behaviors than individual PANI and MoS X . In addition, the CV curves of PANI/MoS X , PANI and one hand, with the increase of scan rate from 0.025 to 0.5 V s ¹1 , PANI CV curves show a positive shift of oxidative peaks and a slight negative shift of reductive peaks, which is mainly caused by electrode resistance.…”

“…7,12 Currently, most of the research is focused on searching for composite electrode materials with superior electrochemical performance in order to satisfy future applications. Conducting polymer polyaniline (PANI) incorporated with transition metal dichalcogenides, 13,14 graphene oxide, 15 graphene, 16,17 carbon nanotube 18 and so on 19,20 have been reported to not only achieve higher capacitive performance, but also to solve the problem of poor cycle life of PANI. Among these composite electrode materials, the polymerization of aniline is triggered by chemical oxidation, 21 electrochemistry, 22 solution mixing, 23 self-assembly 24 and Pickering emulsion.…”