Promoted supercapacitive performances of electrochemically synthesized poly(3,4-ethylenedioxythiophene) incorporated with manganese dioxide

Zhou, Haihan; Zhi, Xiaomin; Zhai, Hua‐Jin

doi:10.1007/s10854-017-8333-0

Cited by 8 publications

(5 citation statements)

References 48 publications

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“…The energy density was considerably higher than that of many FSSCs, such as all‐graphene core–sheath fibriform supercapacitors (0.4–1.7×10 –7 Wh cm –2 ), supercapacitors based on 3D‐NiCo 2 O 4 /Ni (0.21 mWh cm –3 ), rGO/PEDOT:PSS (6.8 μWh cm –2 ), CNT/MnO 2 /nylon fiber (2.6 μWh cm –2 ), and pen ink/CF (0.38 μWh cm –2 ) . It was also comparable or higher than those supercapacitors based on the same materials, such as PEDOT@MnO 2 @Ni nanotube arrays//activated carbon (AC) (0.59 mWh cm –3 ), and MnO 2 /PEDOT electrode prepared by electrochemical co‐deposition (6.5 μWh cm –2 ) . The electrochemical performances, including specific capacitance, energy density, and power density, of the flexible FSSC were comparable or even surpassed those of many previously reported FSSCs, as evidenced by the detailed comparison in Table S3 in the Supporting Information.…”

Section: Resultsmentioning

confidence: 99%

Converting Commercial Sewing Threads into High‐Performance and Flexible/Wearable Fiber‐Shaped Supercapacitors via Facile Vapor Deposition Polymerization

et al. 2019

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Fiber‐shaped supercapacitors (FSSCs) are expected to motivate the development of wearable electronics. However, their high cost and complex operations limit their industrial production. Herein, commercial sewing threads are utilized as fiber substrates to prepare FSSCs via facile methods. The sewing threads become conductive after poly(3,4‐ethylenedioxythiophene) (PEDOT) uniformly grew on the porous surface by in situ polymerization of vacuum‐deposited 2,5‐dibromo‐3,4‐ethylenedioxythiophene. Then, MnO2 nanoflakes electrochemically grow on the conductive threads and the PEDOT layer uniformly wraps the flake surface, thereby improving the electrochemical performance. The FSSCs based on PEDOT/MnO2/PEDOT sandwich structure exhibit a high specific capacitance of 53.89 mF cm–1 (132.02 mF cm–2), an energy density of 3.07 μWh cm–1 (7.51 μWh cm–2), and a power density of 21.3 μW cm−1 (52.3 μW cm–2). Mild polymerization plays a vital role in converting the sewing threads into fiber electrodes with excellent properties. It confers electrodes with a robust adhesion ability, which results in excellent stability. The intrinsic knittability of sewing threads endows the FSSCs with outstanding flexibility. The low cost of the materials and facile preparation methods promote the large‐scale production and wide application of FSSCs. Moreover, these FSSCs based on sewing threads provide insight into the opportunity to develop smart and wearable electronics.

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Section: Resultsmentioning

confidence: 99%

Converting Commercial Sewing Threads into High‐Performance and Flexible/Wearable Fiber‐Shaped Supercapacitors via Facile Vapor Deposition Polymerization

et al. 2019

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“…Under optimized conditions, an energy density of 0.083 mWh cm –2 was calculated at a power density of 10 mW cm –2 . Moreover, the electrochemical performance of the WO 3 @PEDOT-based supercapacitors described herein outperforms those measured for devices prepared from PEDOT, − graphene, CNTs, , and TMOs. − …”

Section: Results and Discussionmentioning

confidence: 73%

“…The inset shows enlarged EIS curves in the high-frequency region. (l) Ragone plot of a series of supercapacitor cells prepared using the WO 3 @PEDOT films as well as data obtained from PEDOT, − graphene, CNTs, , and TMOs − for comparison.…”

Section: Results and Discussionmentioning

confidence: 99%

Ice-Templated Large-Scale Preparation of Two-Dimensional Sheets of Conjugated Polymers: Thickness-Independent Flexible Supercapacitance

et al. 2021

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Two-dimensional (2D) organic materials hold great promise for use in a multitude of contemporary applications due to their outstanding chemical and physical properties. Herein, 2D sheets of poly(3,4-ethylenedioxythiophene):poly(4-styrenesulfonate) (PEDOT:PSS) are prepared from a commercially available PEDOT:PSS suspension using ice as a template. The 2D PEDOT:PSS sheets grow in the boundaries of ice crystals as the polymers are “squeezed” out of the suspension when the water solidifies. The mechanical robustness of the sheets can be enhanced by incorporating WO3 nanowires, and the PSS component can be conveniently removed with a concentrated solution of H2SO4 to afford stable suspensions of PEDOT or WO3@PEDOT sheets, either of which can be converted into flexible films with tunable thicknesses via filtration. Swagelok- or pouch-type supercapacitor devices prepared from the WO3@PEDOT films exhibit outstanding energy-storage characteristics, including high rate capability, thickness-independent energy storage (e.g., 701 mF cm–2 is achieved with a 1-mm-thick film), high resistance toward mechanical deformation, and good cycling stability. Additionally, a high energy density of 0.083 mWh cm–2 is measured for a device prepared using a 1-mm-thick film at a high power density of 10 mW cm–2. The methodology described establishes an efficient and readily scalable approach for accessing 2D organic sheets.

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“…On the other hand, good stability was demonstrated in bending tests of 0–180°, with almost no change in capacitance after 5000 cycles. With these PEDOT nw electrodes, flexible symmetric solid-state supercapacitors were built, reaching a maximum areal capacitance of 413.5 mF cm −2 and energy and power densities of up to 48.3 µWh cm −2 and 16.8 µW cm −2 , respectively, being at higher levels than some PEDOT-based reports included in composites [ 367 , 368 , 369 ]. With a series connection of three supercapacitors, an LED light with an operating voltage of 2.5 V [ 355 ] was powered.…”

Section: Nanostructured Cp As Supercapacitorsmentioning

confidence: 99%

Nanostructured Conducting Polymers and Their Applications in Energy Storage Devices

et al. 2023

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Due to the energy requirements for various human activities, and the need for a substantial change in the energy matrix, it is important to research and design new materials that allow the availability of appropriate technologies. In this sense, together with proposals that advocate a reduction in the conversion, storage, and feeding of clean energies, such as fuel cells and electrochemical capacitors energy consumption, there is an approach that is based on the development of better applications for and batteries. An alternative to commonly used inorganic materials is conducting polymers (CP). Strategies based on the formation of composite materials and nanostructures allow outstanding performances in electrochemical energy storage devices such as those mentioned. Particularly, the nanostructuring of CP stands out because, in the last two decades, there has been an important evolution in the design of various types of nanostructures, with a strong focus on their synergistic combination with other types of materials. This bibliographic compilation reviews state of the art in this area, with a special focus on how nanostructured CP would contribute to the search for new materials for the development of energy storage devices, based mainly on the morphology they present and on their versatility to be combined with other materials, which allows notable improvements in aspects such as reduction in ionic diffusion trajectories and electronic transport, optimization of spaces for ion penetration, a greater number of electrochemically active sites and better stability in charge/discharge cycles.

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Promoted supercapacitive performances of electrochemically synthesized poly(3,4-ethylenedioxythiophene) incorporated with manganese dioxide

Cited by 8 publications

References 48 publications

Converting Commercial Sewing Threads into High‐Performance and Flexible/Wearable Fiber‐Shaped Supercapacitors via Facile Vapor Deposition Polymerization

Converting Commercial Sewing Threads into High‐Performance and Flexible/Wearable Fiber‐Shaped Supercapacitors via Facile Vapor Deposition Polymerization

Ice-Templated Large-Scale Preparation of Two-Dimensional Sheets of Conjugated Polymers: Thickness-Independent Flexible Supercapacitance

Nanostructured Conducting Polymers and Their Applications in Energy Storage Devices

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