High energy reduced graphene oxide/vanadium Pentoxide/polyaniline hybrid supercapacitor for power backup and switched capacitor converters

Viswanathan, Aranganathan; Prakashaiah, B. G.; Subburaj, Vivekanandan; Shetty, Adka Nityanada

doi:10.1016/j.jcis.2019.03.013

Cited by 50 publications

(10 citation statements)

References 54 publications

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“…PANI-ZIF-67-CC [18] 371 RGO/V 2 O 5 /PANI [24] 273 PANI/Silica Self-Aggregates [25] 218.75 PANI@Nanodiamond-Graphene [26] 150.20 Carbon Fiber/PANI [27] 350 Multiwalled Carbon Nanotube/PANI [28] 333 CC@PANI NTs-H (This work) 438 electrodes in Figure 4e, and the discharging time of former is also longer than latter in Figure 4f. The maximum gravimetric capacitance of CC@PANI NTs-H is 438 F g −1 , which are larger than that of CC@PANI NTs-R (276 F g −1 ), respectively.…”

Section: Electrodesmentioning

confidence: 79%

“…The maximum gravimetric capacitance of CC@PANI NTs-H is 438 F g −1 , which are larger than that of CC@PANI NTs-R (276 F g −1 ), respectively. The values are superior to most similar electrodes [18,[24][25][26][27][28], as shown in Table 1. The better electrochemical performances of the CC@PANI NTs-H electrode in comparison with CC@PANI NTs-R can be attributed to acid doping at high temperature, which promotes the ordered structure of PANI and provides more sufficient protons [29].…”

Section: Electrochemical Performances Of Cc@pani Nts Composite Electrmentioning

confidence: 84%

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Polyaniline Nanotubes/Carbon Cloth Composite Electrode by Thermal Acid Doping for High-Performance Supercapacitors

et al. 2019

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Carbon materials have been widely used in designing supercapacitors (SCs) but the capacitance is not ideal. Herein, we synthesize polyaniline (PANI) nanotubes on the basis of a carbon cloth (CC) through a one-step self-degradation template method, and fabricate a CC@PANI NTs-H (CC@PANI nanotubes doping at high temperature) composite electrode by thermal acid doping. The CC@PANI NTs-H electrode obviously exhibits better electrochemical performance with a gravimetric capacitance of 438 F g −1 and maintains 86.8% after 10,000 cycles than the CC@PANI NTs-R (CC@PANI nanotubes doping at room temperature) electrode. Furthermore, we assemble a flexible solid state supercapacitor (FSSC) device with the as-prepared CC@PANI NTs-H composite electrodes, showing good flexibility and outstanding electrochemical performances with a high gravimetric capacitance of 247 F g −1 , a large energy density of 21.9 Wh kg −1 , and a capacitance retention of 85.4% after 10,000 charge and discharge cycles. Our work proposes a novel and easy pathway to fabricate low-cost FSSCs for the development of energy storage devices.

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Section: Electrodesmentioning

confidence: 79%

Section: Electrochemical Performances Of Cc@pani Nts Composite Electrmentioning

confidence: 84%

Polyaniline Nanotubes/Carbon Cloth Composite Electrode by Thermal Acid Doping for High-Performance Supercapacitors

et al. 2019

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“…N‐GA‐4 was the highest among those of others N‐GAs and better than those of the previously reported heteoatom doped carbon electrodes. [ 40‐43 ] The superior capacitive performance of N‐GA‐4 could be mainly attributed to the N‐doping and loose and porous network structure.…”

Section: Resultsmentioning

confidence: 99%

Porous Nitrogen‐doped Reduced Graphene Oxide Gels as Efficient Supercapacitor Electrodes and Oxygen Reduction Reaction Electrocatalysts

Yang

Wang

2020

Chin. J. Chem.

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Summary of main observation and conclusion Heteroatom‐doped carbon materials have been widely used in energy storage and conversion such as supercapacitors and electrocatalysts. In this work, L‐asparagine (Asn), an amino acid derivative, has been used as a doping agent to prepare nitrogen‐ doped reduced graphene oxide gels (N‐GAs). The 3D interconnected structure gives rise to the superior electrochemical properties for supercapacitor and electrocatalytic oxygen reduction reaction (ORR). The N‐GA‐4 (the mass ratio of Asn to graphene oxide (GO) is 4 : 1 by hydrothermal method) electrode shows the capacitance of 291.6 F·g–1 at 0.5 A·g–1. Meanwhile, the assembled symmetric supercapacitor achieves a maximum energy density of 23.8 Wh· kg–1 when the power density is 451.2 W·kg–1, and demonstrates an ultralong cycling life that the retention of capacitance is 99.3% after 80000 cycles. What's more, the annealed aerogel N‐GA‐4‐900 exhibits an onset potential (Eonset) of 0.95 V, half wave potential (E1/2) of 0.84 V (vs. RHE) and the oxygen reduction current density of 5.5 mA·cm–2 at 0.1 V with nearly four‐electron transfer, which are superior to commercial Pt/C. This work offers a new insight into the synthesis and applications of N‐GAs materials towards high performance in supercapacitors and ORR.

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“…It can be seen that the peaks corresponding to V 2 O 5 are broader in PDVO-16.8 and show a slight shift towards lower angle as compared to those of pristine V 2 O 5 . The crystallite size (D) of V 2 O 5 was estimated using Scherrer formula given below 42 :…”

Section: Structural Characterizationmentioning

confidence: 99%

Investigations on performance of PEDOT:PSS/V₂O₅ hybrid symmetric supercapacitor with redox electrolyte

Kanth

Nimmakayala

Betty

et al. 2021

J of Applied Polymer Sci

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Nanocomposites of PEDOT:PSS with V 2 O 5 nanoparticles are synthesized by simple physical mixing of the two with different weight percentages of the latter and their performance as supercapacitor electrode materials is verified. Best performance is obtained for an optimum weight percent of 16.8% of V 2 O 5 . The specific capacitance and specific energy of the composite with 16.8% V 2 O 5 increases by more than two fold, with increase in specific power, as compared to that of pristine PEDOT:PSS device. This is attributed to increase in conductivity brought about by the presence of V 2 O 5 nanoparticles, easier transportation and intimate contact of electrolyte ions with the nanolayers of V 2 O 5 due to the intercalation of PEDOT:PSS between the layers, and additional redox reactions due to various oxidation states of vanadium element, besides redox electrolyte effects. This is further confirmed by the reduced

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High energy reduced graphene oxide/vanadium Pentoxide/polyaniline hybrid supercapacitor for power backup and switched capacitor converters

Cited by 50 publications

References 54 publications

Polyaniline Nanotubes/Carbon Cloth Composite Electrode by Thermal Acid Doping for High-Performance Supercapacitors

Polyaniline Nanotubes/Carbon Cloth Composite Electrode by Thermal Acid Doping for High-Performance Supercapacitors

Porous Nitrogen‐doped Reduced Graphene Oxide Gels as Efficient Supercapacitor Electrodes and Oxygen Reduction Reaction Electrocatalysts

Investigations on performance of PEDOT:PSS/V₂O₅ hybrid symmetric supercapacitor with redox electrolyte

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High energy reduced graphene oxide/vanadium Pentoxide/polyaniline hybrid supercapacitor for power backup and switched capacitor converters

Cited by 50 publications

References 54 publications

Polyaniline Nanotubes/Carbon Cloth Composite Electrode by Thermal Acid Doping for High-Performance Supercapacitors

Polyaniline Nanotubes/Carbon Cloth Composite Electrode by Thermal Acid Doping for High-Performance Supercapacitors

Porous Nitrogen‐doped Reduced Graphene Oxide Gels as Efficient Supercapacitor Electrodes and Oxygen Reduction Reaction Electrocatalysts

Investigations on performance of PEDOT:PSS/V2O5 hybrid symmetric supercapacitor with redox electrolyte

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Investigations on performance of PEDOT:PSS/V₂O₅ hybrid symmetric supercapacitor with redox electrolyte