Performance of Flexible and Binderless Polypyrrole/Graphene Oxide/Zinc Oxide Supercapacitor Electrode in a Symmetrical Two-Electrode Configuration

Chee, W. K.; Lim, Hong Ngee; Harrison, I. R.; Chong, Kwok Feng; Zainal, Zulkarnain; Ng, Chi Huey; Huang, Nay Ming

doi:10.1016/j.electacta.2015.01.080

Cited by 208 publications

(80 citation statements)

References 40 publications

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“…6e 4 and the ZnO/carbon nanotube SSC (with a maximum energy density of 13.1 W h kg -1 and power density of 3 kW kg -1 ). 6e 4 and the ZnO/carbon nanotube SSC (with a maximum energy density of 13.1 W h kg -1 and power density of 3 kW kg -1 ).…”

Section: Electrochemical Studies Of Positive Materialsmentioning

confidence: 99%

All-solid-state asymmetric supercapacitors based on ZnO quantum dots/carbon/CNT and porous N-doped carbon/CNT electrodes derived from a single ZIF-8/CNT template

et al. 2016

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Currently, the development of two kinds of materials from a single precursor has been an important frontier in material synthesis. In this study, we have successfully fabricated a single precursor using metal-organic framework (MOF) (zeolitic imidazolate framework, ZIF-8) and carbon nanotubes (CNTs). ZnO quantum dots (QDs)/carbon/CNTs and porous N-doped carbon/CNTs have been selectively synthesized from the single ZIF-8/CNTs template. When the two derived materials were used for supercapacitor electrode, they showed high capacitance values (185 F g -1 g for ZnO QDs/carbon/CNTs at 0.5 A g -1 and 250 F g -1 g for porous N-doped carbon/CNTs at 1 A g -1 , respectively). Further, an all-solid-state asymmetric supercapacitor (ASC) device using ZnO QDs/carbon/CNTs as the positive electrode and porous N-doped carbon/CNTs as the negative electrode was fabricated, and this device could reach a working potential of 1.7 V, delivering a maximum energy density of 23.6 W h kg -1 and a maximum power density of 16.9 kW kg -1 , which is better than those of the ZnO-based symmetric or asymmetric supercapacitor devices. fact that they have high theoretical capacitance values, low cost, environmental friendliness, high electrochemical stability, etc. 2 However, the low charge storage capability and narrow working potential window limit their further applications in SCs. In an effort to address this challenge, various carbon materials, such as graphene, 3-9 reduced graphene oxides, 10-13 carbon nanotubes (CNTs), 2, 14-18 graphitic carbon nanofibers, 19, 20 carbon arrays 21 and activated carbon, 22 have been widely used to modify ZnO electrode materials due to their contribution on additional electric double layer capacitance and enlarged working potential window. However, the weak adhesive force between carbon materials and ZnO nanocrystals usually leads to pulverization of the electrodes, resulting in poor cycle stability. 23 Besides, the maximum reported potential window for ZnO/carbon materials electrodes is 1 V, which obviously results in limited energy density. Rational design and facile synthesis of ZnO-based supercapacitors for excellent cycling performance and outstanding energy density still remain a challenge. Among multifarious strategies, fabricating uniformly dispersed small ZnO particles in carbon matrix and developing asymmetric supercapacitors (ASCs) to maintain the mechanical integrity of the composite material and enlarge the working potential window can be effective approaches to solve the main problems. 24, 25 As well as we know, small enough particles embedded into carbon matrix can produce strong adhesion, and quantum dot (QD) can be a suitable candidate among various small scale particles.To date, numerous methods have been reported for the synthesis of ZnO quantum dots composited with carbon materials. [26][27][28][29] The key problem is that some of 7 60 °C under vacuum. For comparison, the ZIF-8 and ZIF-8/CNTs within different amounts of CNTs were also prepared and characterized. The ZIF-8/CNTs composites are...

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Section: Electrochemical Studies Of Positive Materialsmentioning

confidence: 99%

All-solid-state asymmetric supercapacitors based on ZnO quantum dots/carbon/CNT and porous N-doped carbon/CNT electrodes derived from a single ZIF-8/CNT template

et al. 2016

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“…6, the Lig-GH electrode shows an excellent cycling stability; remains 83.7% of its initial specific capacitance and still above 280 F g -1 after 1000 charge/discharge cycles. The retention rate of Lig-GH electrodes at very high current density of 20 A g -1 is still higher than that of graphene/polyaniline composites [13,59,60] and graphene/polypyrrole composites [48,61,62]. And the detailed comparison of cycling stability of Lig-GH with these materials is showed in Table S5.…”

Section: Figmentioning

confidence: 92%

Electroactive biopolymer/graphene hydrogels prepared for high-performance supercapacitor electrodes

Xiong

Zhong

Zou

et al. 2016

Electrochimica Acta

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“…Additionally, the pseudo‐capacitive performance of PPy and ZnO along with the EDLC of graphene oxide led to energy and power density as high as 10.65 W h kg −1 and 258.26 W kg −1 at current density of 1 A g −1 , respectively. It was also indicated from the Ragone plot that the incorporation of ZnO into the PPy/GO enhanced the energy density of the system, probablytaking place due to adding a pseudo‐capacitance, while the enhancement in the power density represented the successive use of graphene oxide (Figure ) . Table lists specific capacitance and power outputs of novel ternary nanocomposites as supercapacitor materials, all of which exhibited superior performance in comparison to binary nanocomposites.…”

Section: Characterization Of Ternary Nanocomposite Of Conductive Polymentioning

confidence: 99%

“…Conversely, graphene, a carbonaceous material containing sp 2 ‐hybridized carbon atoms in a 2‐D honeycomb construction and possessing significant theoretical specific surface area as high as 2620 m 2 g −1 , excellent mechanical strength as high as 1.0 TPa, appreciable Young's modulus (130 GPa) and extraordinary conductive behavior, represents a not only huge but also stable electrical double layer capacitance. Nevertheless, graphene sheets easily re‐stack, reducing their surface area available for energy storage and, therefore, restricting their utilization in high energy density supercapacitors …”

Section: Introductionmentioning

confidence: 99%

“…It is worth mentioning that most transition metal oxides are classified as semiconductors possessing an extensive band gap energy, triggering poor electron and hole concentrations and, therefore, poor conductivity. Conversely, conductive polymers not only find a solution to the poor‐conductivity drawback of the electrode materials but also retain the merit of storing charges through fast faradic charge transfer . Conductive polymers, nonetheless, exhibit no stability throughout the continuous charge‐discharge procedures, for their swelling and shrinkage throughout doping/dedoping procedures result in not only mechanical degradation of the electrode material but also decaying the electrochemical properties …”

Section: Introductionmentioning

confidence: 99%

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Electrochemical Pseudocapacitors Based on Ternary Nanocomposite of Conductive Polymer/Graphene/Metal Oxide: An Introduction and Review to it in Recent Studies

Ehsani

Heidari

Shiri

2018

The Chemical Record

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This review gives an overview of the synthesis, surface and electrochemical investigations over ternary nanocomposite of conductive polymers in the development of new supercapacitors. They utilize both Faradaic and non‐Faradaic procedures to store charge, leading to higher specific capacitance and energy density, higher cell voltage, longer life cycle and moderated power density. Owing to a unique combination of features such as superb electrical conductivity, corrosion resistance in aqueous electrolytes, highly modifiable nanostructures, long cycle life and the large theoretical specific‐surface area, the use of ternary nanocomposites as a supercapacitor electrode material has become the focus of a significant amount of current scientific researches in the field of energy storage devices. In these nanocomposites, graphene not only can be utilized to provide a substrate for growing nanostructured polymers in a polymer‐carbon nanocomposite structure in order to overcome the insulating nature of conductive polymers at dedoped states, but also is capable of providing a platform for the decoration of metal oxide nanoparticles to avoid their agglomeration. In this regard, synthesis, characterization and performance of different ternary nanocomposites of conductive polymer/graphene/metal oxide are discussed in detail. These remarkable results demonstrate the exciting commercial potential for high performance, environmentally friendly and low‐cost electrical energy storage devices based on ternary nanocomposite of conductive polymer/graphene/metal oxide.

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Performance of Flexible and Binderless Polypyrrole/Graphene Oxide/Zinc Oxide Supercapacitor Electrode in a Symmetrical Two-Electrode Configuration

Cited by 208 publications

References 40 publications

All-solid-state asymmetric supercapacitors based on ZnO quantum dots/carbon/CNT and porous N-doped carbon/CNT electrodes derived from a single ZIF-8/CNT template

All-solid-state asymmetric supercapacitors based on ZnO quantum dots/carbon/CNT and porous N-doped carbon/CNT electrodes derived from a single ZIF-8/CNT template

Electroactive biopolymer/graphene hydrogels prepared for high-performance supercapacitor electrodes

Electrochemical Pseudocapacitors Based on Ternary Nanocomposite of Conductive Polymer/Graphene/Metal Oxide: An Introduction and Review to it in Recent Studies

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