Development of plasticized poly (vinyl chloride)/reduced graphene oxide nanocomposites for energy storage applications

Akhina, H.; Arif, P. Mohammed; Nair, M. R. Gopinathan; Nandakumar, K.; Thomas, Sabu

doi:10.1016/j.polymertesting.2018.10.015

Cited by 22 publications

(7 citation statements)

References 48 publications

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“…23 The obtained GO was dried and then reduced using thermal reduction method at a temperature of 200 C for 2 hours to obtain RGO. 24 PPVC/RGO nanocomposites were prepared by melt compounding technique using Haake mixer at 170 C for 7 minutes at a rotor speed of 60 rpm. Different amount of ller (0.5, 1, 2 and 5 phr) was used for the preparation of nanocomposites.…”

Section: Introductionmentioning

confidence: 99%

Influence of reduced graphene oxide on flow behaviour, glass transition temperature and secondary crystallinity of plasticized poly(vinyl chloride)

et al. 2020

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Section: Introductionmentioning

confidence: 99%

Influence of reduced graphene oxide on flow behaviour, glass transition temperature and secondary crystallinity of plasticized poly(vinyl chloride)

et al. 2020

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“…The PVC system shows multistep degradations. [38,39,40] The first step corresponds to the loss of HCl (250°C-360°C). The second step (∼420°C) corresponds to the degradation of polyene backbone.…”

Section: Thermal Behaviormentioning

confidence: 99%

Impact of Ionic Liquid on the Dielectric and Mechanical Performance of Poly(Vinyl Chloride) (PVC)/Reduced Graphene Oxide (RGO) Nanocomposites

Hafusa

Nair

Kalarickal

et al. 2021

Macromolecular Symposia

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Poly(vinyl chloride) (PVC) composites with enhanced electrical and mechanical properties are fabricated using a hybrid filler. This study hereby reports the effect of introducing reduced graphene oxide (RGO)/ionic liquid (IL) hybrid filler on the properties of plasticized PVC. Hybrid nanostructures, if appropriately designed, are expected to combine the merits of the individual building nanomaterials. An imidazolium based ionic liquid, 1-benzyl-3-methyl imidazolium tetra fluro borate is used for the hybrid formation. The structural and morphological characterization of hybrid filler using spectroscopic and microscopic techniques confirms the successful formation of hybrid. Dielectric constant is found to be increased even by the addition of a small quantity of ionic liquid to RGO. The ionic moieties in the added ionic liquid in addition to the bonds in the RGO are found to be responsible for the enhancement. Elongation at break is found to be increased with addition of hybrid filler due to the plasticizing action of the ionic liquid. It is clear from the investigations that ionic liquid, 1-benzyl-3-methyl imidazolium tetra fluro borate can be used as an efficient modifier for RGO.

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“…To further re-establish the enhanced supercapacitive performance of the nanocomposites, a comparative study of EIS between the characteristics of pristine GO electrode and the GO-ZnO and GO-CuO composite electrode has been proposed. Among the graphene / metal oxide composites, the vertical curve of GO-CuO has the largest slope with respect to the Z'axis, i.e., it is the closest to the imaginary impedance axis (Z'') which implies that GO-CuO exhibits the highest conductivity or lowest internal resistance [41]. An equivalent circuit was employed to further analyze the obtained Nyquist plots using the Zsimp Win software (version 3.21).…”

Section: Chronopotentiometry (Cp)mentioning

confidence: 99%

Electrolyte dependent performance of graphene–mixed metal oxide composites for enhanced supercapacitor applications

et al. 2020

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Graphene-metal frameworks have been extensively studied and developed as electrode materials for next generation energy storage materials. Their high surface area and easily transformable structure enhances its specific capacitance characteristics. In the present study, graphene oxide (GO) was synthesized using Hummers method. Zinc oxide and copper oxide nanoparticles were incorporated in to the GO matrix to form mixed metal oxides. GO, GO-CuO and GO-ZnO were characterized using UV-Visible, FTIR, FT Raman spectroscopy, SEM and XRD to confirm their effective formation. The surface of the glassy carbon electrode was modified by drop casting with the samples on its surface and its electrochemical properties were studied. Cyclic Voltammetry studies were conducted at various scan rates in different electrolytes (KCl, H 2 SO 4 and Na 2 SO 4) and the characteristic curves were observed to be asymmetric in nature. GO-CuO exhibits the highest specific capacitance of 790 F/g at 5 mV/s in KCl. The specific capacitance of the modified electrodes was also measured using the Chronopotentiometry technique. GO-CuO nanocomposites show a maximum specific capacitance of 800 F/g at 1 A/g. The nanocomposites showed enhanced electrochemical behaviour of the nanocomposites when compared to pure GO. The nanocomposites also showed good cycling stability. The superior performance of the GO-CuO and GO-ZnO nanocomposite electrode renders it as a promising material for supercapacitors applications.

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Development of plasticized poly (vinyl chloride)/reduced graphene oxide nanocomposites for energy storage applications

Cited by 22 publications

References 48 publications

Influence of reduced graphene oxide on flow behaviour, glass transition temperature and secondary crystallinity of plasticized poly(vinyl chloride)

Influence of reduced graphene oxide on flow behaviour, glass transition temperature and secondary crystallinity of plasticized poly(vinyl chloride)

Impact of Ionic Liquid on the Dielectric and Mechanical Performance of Poly(Vinyl Chloride) (PVC)/Reduced Graphene Oxide (RGO) Nanocomposites

Electrolyte dependent performance of graphene–mixed metal oxide composites for enhanced supercapacitor applications

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