Pseudocapacitive material for energy storage application: PEDOT and PEDOT:PSS

Adekoya, Gbolahan Joseph; Sadiku, Rotimi; Hamam, Yskandar; Ray, Suprakas Sinha; Mwakikunga, Bonex W; Folorunso, Oladipo; Adekoya, Oluwasegun Chijoke; Lolu, Olajide Jimmy; Biotidara, Olusesan Frank

doi:10.1063/5.0028340

Cited by 15 publications

(12 citation statements)

References 25 publications

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“…To evaluate the electrochemical energy storage applications, supercapacitive electrodes were fabricated by electrodeposition of PEDOT onto different allotropic carbon-paper electrodes, in which PEDOT is a pseudocapacitive material having a high specific capacitance and ionic conductivity. , The morphology and chemical characteristic of the PEDOT-carbon-paper electrode were characterized by SEM and EDX analyses. A PEDOT film was electrochemically deposited onto the CNTs-, GR-, and CF-paper electrodes (Figure a).…”

Section: Resultsmentioning

confidence: 99%

Evaluation on the Intrinsic Physicoelectrochemical Attributes and Engineering of Micro-, Nano-, and 2D-Structured Allotropic Carbon-Based Papers for Flexible Electronics

et al. 2021

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Flexible electronics have gained more attention for emerging electronic devices such as sensors, biosensors, and batteries with advantageous properties including being thin, lightweight, flexible, and low-cost. The development of various forms of allotropic carbon papers provided a new dry-manufacturing route for the fabrication of flexible and wearable electronics, while the electrochemical performance and the bending stability are largely influenced by the bulk morphology and the micro-/nanostructured domains of the carbon papers. Here, we evaluate systematically the intrinsic physicoelectrochemical properties of allotropic carbon-based conducting papers as flexible electrodes including carbon-nanotubes-paper (CNTs-paper), graphene-paper (GR-paper), and carbon-fiber-paper (CF-paper), followed by functionalization of the allotropic carbon papers for the fabrication of flexible electrodes. The morphology, chemical structure, and defects originating from the allotropic nanostructured carbon materials were characterized by scanning electron microscopy (SEM) and Raman spectroscopy, followed by evaluating the electrochemical performance of the corresponding flexible electrodes by cyclic voltammetry and electrochemical impedance spectroscopy. The electron-transfer rate constants of the CNTs-paper and GR-paper electrodes were ∼14 times higher compared with the CF-paper electrode. The CNTs-paper and GR-paper electrodes composed of nanostructured carbon showed significantly higher bending stabilities of 5.61 and 4.96 times compared with the CF-paper. The carbon-paper flexible electrodes were further functionalized with an inorganic catalyst, Prussian blue (PB), forming the PB-carbon-paper catalytic electrode and an organic conducting polymer, poly(3,4-ethylenedioxythiophene) (PEDOT), forming the PEDOT-carbon-paper capacitive electrode. The intrinsic attribute of different allotropic carbon electrodes affects the deposition of PB and PEDOT, leading to different electrocatalytic and capacitive performances. These findings are insightful for the future development and fabrication of advanced flexible electronics with allotropic carbon papers.

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Section: Resultsmentioning

confidence: 99%

Evaluation on the Intrinsic Physicoelectrochemical Attributes and Engineering of Micro-, Nano-, and 2D-Structured Allotropic Carbon-Based Papers for Flexible Electronics

et al. 2021

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Section: Introductionmentioning

confidence: 99%

“…Polypyrrole (PPy), a common conductive polymer, stands out because of its high electrical conductivity, sizeable theoretical capacity, and redox reversibility with the doping/ de-doping process. [1][2][3][4][5] PPy has often been used for Lithium (Li) ion batteries. However, the diffusion-induced intercalation of Li-ions in the anode and cathode materials causes significant volume changes during charging or discharging.…”

Section: Introductionmentioning

confidence: 99%

Response surface optimization and finite element homogenization study of the effective elastic modulus and electrical conductivity of MXene‐polypyrrole hybrid nanocomposite as electrode material for electronic energy storage devices

Ezika

Sadiku

Adekoya

et al. 2022

Polymer Engineering & Sci

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Electrical energy storage devices are crucial for energy storage and distribution purposes. MXene (MX), a 2D material, and conductive organic polymers, such as polypyrrole (PPy), have been widely used as electrode material in electronic energy storage devices. This work calculated the elastic modulus and the electrical conductivity of a MX/PPy nanocomposite electrode using a finite element model. Response Surface Methodology (RSM) was used to optimize the electrical conductivity and elastic modulus response variables based on the finite element (FE) simulation findings. By assigning appropriate weights to these response factors in the optimization technique, the impacts of mass fraction and aspect ratio (AR) of MX inclusion on the electrical conductivity values and elastic modulus of the electrode were analyzed. When compared to the experimental findings, the results demonstrated that the suggested finite element model could provide a satisfactory estimate of the electrical conductivity and elastic modulus of the electrodes made of MX and PPy. However, these response variables might be optimized by using the response surface approach. Therefore, when RSM was employed, both electrical conductivity and Youngs modulus could be adjusted to close to their respective maximum optimal values, with a predicted electrical conductivity of 474.33 S/m and an elastic modulus of 3.24 GPa, at 50% mass fraction of the MX and the AR of 0.2. Based on these results, if a MX/PPy nanocomposite electrode could be built to achieve this modulus and electrical conductivity, such electrode would be a viable material for metal-ion batteries.

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“…Energy conversion and storage applications for polymer and polymeric composite materials with customizable characteristics have been investigated . Among these materials, conductive polymers, such as poly(3,4-ethylene dioxythiophene):poly(4-styrene sulfonate) (PEDOT:PSS), − have been widely researched for energy storage applications for their more extensive range of tunable electrical conductivity, higher mechanical stability, general accessibility, less weight in comparison to that of other materials, and ease of processing. , More importantly, PEDOT:PSS-based conductive nanocomposites are suitable materials for a variety of purposes, specifically for supercapacitor and battery applications because they have superior electrochemical activities, more surface area, and higher electrical conductivity than bulk polymers. − Varghese and colleagues demonstrated using Co 3 O 4 nanoparticles coated with a conducting polymer (PEDOT:PSS) as the anode for applications involving sodium-ion batteries . Meanwhile, to improve the specific capacitance and rate performance of graphene-based fiber-shaped supercapacitors, Teng and colleagues developed a hierarchically porous reduced graphene oxide/PEDOT:PSS hybrid fiber by the combined confined growth and acid treatment strategy .…”

Section: Introductionmentioning

confidence: 99%

“… 6 Among these materials, conductive polymers, such as poly(3,4-ethylene dioxythiophene):poly(4-styrene sulfonate) (PEDOT:PSS), 7 − 10 have been widely researched for energy storage applications for their more extensive range of tunable electrical conductivity, higher mechanical stability, general accessibility, less weight in comparison to that of other materials, and ease of processing. 11 , 12 More importantly, PEDOT:PSS-based conductive nanocomposites are suitable materials for a variety of purposes, specifically for supercapacitor and battery applications because they have superior electrochemical activities, more surface area, and higher electrical conductivity than bulk polymers. 13 − 15 Varghese and colleagues demonstrated using Co 3 O 4 nanoparticles coated with a conducting polymer (PEDOT:PSS) as the anode for applications involving sodium-ion batteries.…”

Section: Introductionmentioning

confidence: 99%

Numerical Investigation and Response Surface Optimization of the Effective Modulus and Electrical and Thermal Conductivities of the Borophene Nanoplatelet-Reinforced PEDOT:PSS Nanocomposite for Energy Storage Application

Adekoya

Sadiku

et al. 2022

ACS Omega

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Conductive organic nanocomposites have been widely employed to achieve a variety of purposes, particularly for energy storage applications, making it necessary to investigate transport properties such as electron and heat transport qualities based on geometric shapes and component materials. Due to the solid B–B bonds, unique atomic structure, and energy storage potential, borophene has received significant attention due to its reported ultrahigh mechanical modulus and metallic conduction. Herein, we investigated the effect and interaction of content materials (volume fraction) and geometric parameters such as the aspect ratio and orientation of borophene nanoplatelet (BNP) inclusions on the mechanical integrity and transport features (electrical and thermal conductivities) of a poly(3,4-ethylene dioxythiophene):poly(4-styrene sulfonate) (PEDOT:PSS) electrode. The boundary condition is crucial in developing the predictive models for the optimized mechanical and transport properties of the composites. The effective modulus, electrical conductivity, and thermal conductivity of the BNP-reinforced PEDOT:PSS-based nanocomposite are evaluated using the periodic boundary condition, the representative volume element-based finite element homogenization, and statistical analysis response surface techniques. The optimal parameters for the PEDOT:PSS/BNP nanocomposite for energy storage application are predicted based on the desirability function to have a 13.96% volume fraction of BNPs, having an aspect ratio of 0.04 at 45° inclination. The desirability value achieved for the material hinges was 0.78 with a predicted Young’s modulus of 6.73 GPa, the electrical conductivity was 633.85 S/cm, and the thermal conductivity was 1.96 W/m K at a generally high predictive performance of <0.03 error. The effective thermal conductivity of the nanocomposite was determined by considering Kapitsa nanoeffects, which exhibit an interfacial thermal resistance of 2.42 × 10–9 m2 K/W. Based on these improved findings, the enhanced PEDOT:PSS/BNP nanocomposite electrode would be a promising material for metal-ion batteries.

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Pseudocapacitive material for energy storage application: PEDOT and PEDOT:PSS

Cited by 15 publications

References 25 publications

Evaluation on the Intrinsic Physicoelectrochemical Attributes and Engineering of Micro-, Nano-, and 2D-Structured Allotropic Carbon-Based Papers for Flexible Electronics

Evaluation on the Intrinsic Physicoelectrochemical Attributes and Engineering of Micro-, Nano-, and 2D-Structured Allotropic Carbon-Based Papers for Flexible Electronics

Response surface optimization and finite element homogenization study of the effective elastic modulus and electrical conductivity of MXene‐polypyrrole hybrid nanocomposite as electrode material for electronic energy storage devices

Numerical Investigation and Response Surface Optimization of the Effective Modulus and Electrical and Thermal Conductivities of the Borophene Nanoplatelet-Reinforced PEDOT:PSS Nanocomposite for Energy Storage Application

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