In situ one-pot preparation of reduced graphene oxide/polyaniline composite for high-performance electrochemical capacitors

Chen, Nali; Ren, Yapeng; Kong, Peipei; Tan, Lin; Li, Congcong; Luo, Yan‐Ling

doi:10.1016/j.apsusc.2016.07.168

Cited by 92 publications

(21 citation statements)

References 54 publications

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“…Up to now, combining PANI with GO as composite electrode have been confirmed as an efficient method to solve this issue, which could not only make up for the low capacitance of carbon materials but also improve the stability of the conducting polymers . For instance, Chen et al prepared rGO/PANI composite electrode by in situ one‐pot method, retaining 81% of initial specific capacitance after 2000 cycles. Zhou et al reported GO/PANI electrode through in situ polymerization with 81% retention after 1000 cycles.…”

Section: Introductionmentioning

confidence: 99%

Aniline‐grafting graphene oxide/polyaniline composite prepared via interfacial polymerization with high capacitive performance

Wang

et al. 2019

Int J Energy Res

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Summary Polyaniline (PANI), a low‐cost conducting polymer with an excellent specific capacitance and a high conductivity, is a promising organic material served for supercapacitor. However, it tends to curl and swell after constant charge and discharge, resulting in poor cycle stability. In this work, we employed the interfacial polymerization route to construct an aniline‐grafting graphene oxide/PANI (GO‐ANI/PANI) composite. The as‐prepared GO‐ANI/PANI composite shows a high specific capacitance (160.5 F g‐1) at 0.5 A g‐1 under the wide potential range from 0.0 to 1.0 V. Importantly, at a high current density (10 A g‐1), the capacitance retains 86% after 3000 cycles due to the enhanced interaction between GO and PANI and good conductive network. It has been demonstrated that the GO‐ANI/PANI composite has a higher specific capacitance and better stability compared with GO/PANI obtained by common method. This study implies that the composite electrode could be a competitive candidate for high‐performance supercapacitor.

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Section: Introductionmentioning

confidence: 99%

Aniline‐grafting graphene oxide/polyaniline composite prepared via interfacial polymerization with high capacitive performance

Wang

et al. 2019

Int J Energy Res

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“…This coverage is likely attributed to the polymer nature of Pani, which formed large agglomerates due to incomplete reduction of GO that decreased the number of nitrogen atoms doped on the carbon surface. In addition, it is worth noting that the one‐step pyrolysis with a shorter period than a two‐step pyrolysis that was adopted to synthesize Fe/Pani/RGO may have resulted in the formation of agglomerates …”

Section: Resultsmentioning

confidence: 99%

Noble‐free oxygen reduction reaction catalyst supported on Sengon wood ( Paraserianthes falcataria L. ) derived reduced graphene oxide for fuel cell application

et al. 2019

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Summary Reduced graphene oxide (RGO) has progressed as one of key emerging carbon for catalyst support material. As an alternative to the conventional RGO precursor, biomass Sengon wood was converted into RGO for use as a noble metal free catalyst support in oxygen reduction reaction (ORR). This work intends to reveal the applicability of Sengon wood‐derived RGO in anchoring/doping iron and nitrogen particles onto its surface and to study its ORR performance in a half‐cell environment. Thin‐sheet layer and highly defective (ID/IG) was gradually obtained at elevated pyrolysis temperature of Sengon wood graphene oxide (GO) at range 700°C to 900°C. As prepared RGO was further doped into catalyst (Fe/N/RGO) through the same pyrolysis procedure at a selected temperature after mixing the GO powder with iron chloride and different nitrogen precursors (urea, choline chloride, and polyaniline) at a fixed ratio. The ORR activity reached a current density up to 2.43 mA/cm2, which in conjunction with smooth multilayer sheet morphology and high graphitic‐N content as the active sites. Stability analysis indicated an 85% current efficiency and only 0.03 V reduction in onset potential on methanol resistant test for Fe/ChoCl/RGO catalyst. This study revealed that Sengon wood‐derived RGO successfully supported Fe‐N‐C catalyst which showed comparable oxygen reduction activity to Pt/C.

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“…In contrast, it was found that the flexible and wrinkled sheets of PGO were well-dispersed in the PLA matrix, indicating that PGO-PLLA had been primarily stripped and evenly dispersed at the nanometer level. 42…”

Section: Characterizationmentioning

confidence: 99%

Preparation and characterization of phosphorylated graphene oxide grafted with poly(L‐lactide) and its effect on the crystallization, rheological behavior, and performance of poly (lactic acid)

Yang

Zhen

2019

Polymers for Advanced Techs

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Phosphorylated graphene oxide (PGO) was prepared by using phosphoric acid as functional reagent, and PGO was grafted with poly(L‐lactide) (PGO‐PLLA) by ring‐opening polymerization of L‐lactide as monomer under nano‐ZnO catalyst. The results of the orthogonal analysis showed the optimum reaction conditions to be as follows: the reaction temperature of 170°C, reaction time of 14 hours, the mass ratio of PGO of 10 wt%, and the mass of nano‐ZnO of 1 wt%. PGO‐PLLA was characterized by fourier transform infrared spectroscopy, gel permeation chromatography, and X‐ray photoelectron spectroscopy, which demonstrated that the PLLA molecular chains were successfully grafted onto the surface of PGO. Poly (lactic acid)/PGO‐PLLA nanocomposites (PLA/PGO‐PLLA) were prepared by melt intercalation. Mechanical test and fracture scanning electron microscopy showed that PGO‐PLLA (0.3 wt%) improved impact strength of PLA by 52.19%, which resulted in ductile fractures surface of PLA/PGO‐PLLA. Microcalorimetry and thermal degradation kinetics proved that PGO‐PLLA improved the thermal stability of PLA. Polarized optical microscopy and differential scanning calorimetry confirmed that PGO‐PLLA increased crystallization rate and spherulite kernel density of PLA, and crystallinity of PLA/PGO‐PLLA reached to 22.05%. Rheological behavior proved that PGO‐PLLA increased the self‐lubricity of PLA. Enzymatic degradation results illustrated that PGO‐PLLA had some inhibition for the biodegradability of PLA based nanocomposites.

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In situ one-pot preparation of reduced graphene oxide/polyaniline composite for high-performance electrochemical capacitors

Cited by 92 publications

References 54 publications

Aniline‐grafting graphene oxide/polyaniline composite prepared via interfacial polymerization with high capacitive performance

Aniline‐grafting graphene oxide/polyaniline composite prepared via interfacial polymerization with high capacitive performance

Noble‐free oxygen reduction reaction catalyst supported on Sengon wood ( Paraserianthes falcataria L. ) derived reduced graphene oxide for fuel cell application

Preparation and characterization of phosphorylated graphene oxide grafted with poly(L‐lactide) and its effect on the crystallization, rheological behavior, and performance of poly (lactic acid)

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