Free-standing PEDOT/polyaniline conductive polymer hydrogel for flexible solid-state supercapacitors

Yang, Zhaokun; Ma, Jun; Bai, Borui; Qiu, Aidong; Lošić, Dušan; Shi, Dongjian; Chen, Mingqing

doi:10.1016/j.electacta.2019.134769

Cited by 145 publications

(76 citation statements)

References 72 publications

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“…Li et al prepared a flexible solid-state supercapacitor based on graphene/polyaniline paper electrodes and showed good electrochemical performance [ 35 ]. Yang et al used PEDOT and PANI conductive polymer as electrode materials to prepare flexible supercapacitor with excellent electrochemical performance [ 36 ].…”

Section: Introductionmentioning

confidence: 99%

Fabrication and Electrochemical Performance of PVA/CNT/PANI Flexible Films as Electrodes for Supercapacitors

et al. 2020

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The flexible and rechargeable energy storage device with excellent performance is highly desired due to the demands of portable and wearable devices. Herein, by integrating the bendability and stretchability of Polyvinyl alcohol (PVA), pseudocapacitance of Polyaniline (PANI), and the charge transport ability of carbon nanotubes (CNTs), PVA/CNT/PANI flexible film was fabricated as supercapacitor electrodes with excellent electrochemical performance and flexibility. Full-solid supercapacitor is prepared based on PVA/H 2 SO 4 gel electrolyte and as-prepared film electrodes. The device achieves an areal capacitance of 196.5 mF cm -2 with high cycling stability. The flexible properties of PVA, the conductivity of CNT, and the pseudo-capacitance of PANI contribute to the superior performance. Present work develops a facile and effective way for preparing flexible electrode materials. Graphical Abstract In present work, we fabricated PVA/CNT/PANI flexible film as supercapacitor electrodes with excellent electrochemical performance and flexibility.

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Section: Introductionmentioning

confidence: 99%

Fabrication and Electrochemical Performance of PVA/CNT/PANI Flexible Films as Electrodes for Supercapacitors

et al. 2020

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“…478highlighted that both of PANI and PPy made a contribution to improved electrochemical 479 performance. Very recently, Yang et al[76] co-polymerized PANI and PEDOT by a molecular bridge 480 provided by phytic acid. The PANI/PEDOT co-polymer hydrogel was with a 3D-network structure481 of PEDOT sheets where PANI was inlaid.…”

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confidence: 99%

Research Progress on Applications of Polyaniline (PANI) for Electrochemical Energy Storage and Conversion

Gong

2020

Materials

115

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Conducting polyaniline (PANI) with high conductivity, ease of synthesis, high flexibility, low cost, environmental friendliness and unique redox properties has been extensively applied in electrochemical energy storage and conversion technologies including supercapacitors, rechargeable batteries and fuel cells. Pure PANI exhibits inferior stability as supercapacitive electrode, and can not meet the ever-increasing demand for more stable molecular structure, higher power/energy density and more N-active sites. The combination of PANI and other active materials like carbon materials, metal compounds and other conducting polymers (CPs) can make up for these disadvantages as supercapacitive electrode. As for rechargeable batteries and fuel cells, recent research related to PANI mainly focus on PANI modified composite electrodes and supported composite electrocatalysts respectively. In various PANI based composite structures, PANI usually acts as a conductive layer and network, and the resultant PANI based composites with various unique structures have demonstrated superior electrochemical performance in supercapacitors, rechargeable batteries and fuel cells due to the synergistic effect. Additionally, PANI derived N-doped carbon materials also have been widely used as metal-free electrocatalysts for fuel cells, which is also involved in this review. In the end, we give a brief outline of future advances and research directions on PANI.

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“…Based on these results, we surmise that the interaction between PANi and PEDOT chains is partly induced by the phytic acid molecules in the PANi chains. Specifically,t he formation of interactions between PEDOTand PANi can be explained as follows:( i) the remaining phosphate groups of phytic acid molecules in the PANi chains could interact with PEDOT chains, [43,44] thus forming crosslinks between PEDOT and PANi chains; and (ii)phytic acid can lead to partial removal of PSS chains (Figure S3 a-c in the Supporting Information) and thus induce the conformation change of PEDOT chains from benzoid structure to quinoid structure ( Figure S3 di nt he Supporting Information), [45,46] whichi se vident from the redshift of the C a = C b stretching vibration peak in the PEDOT/PANi paste and hydrogels from 1438t o1 434 cm À1 compared with untreated PE-DOT:PSS.T he quinoid structure with al ongerc onjugation length is beneficial for more efficient charge delocalization, increasingt he amount of spatially close-lying p orbitals between PEDOT chains and PANi chains and thus enhancing the p-p stacking attraction. [42] The existence of the p-p stacking interactions was further confirmed by XPS.…”

Section: Resultsmentioning

confidence: 99%

Self‐Standing Hydrogels Composed of Conducting Polymers for All‐Hydrogel‐State Supercapacitors

Yang

Shi

Dong

et al. 2020

Chemistry A European J

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Conducting polymerh ydrogels that are capable of contacting with electrolytes at the molecular level, represent an important electrode material. However,t he fabrication of self-standing hydrogels merely composed of conducting polymers is still challenging owing to the absence of reliable methods. Herein, an ovel and facile macromolecular interaction assisted route is reported to fabricate self-standingh ydrogelsc onsisting of polyaniline (PANi:p roviding high electrochemical activity) and poly(3,4-ethylenedioxythiophene) (PEDOT: enabling high electronic conductivity). Owing to the synergistic effect between them, the self-standingh ydrogels possess good mechanical properties and electronic/electrochemicalp erformances, making them an excellent potential electrode for solid-state energy storaged evices.Aproof-ofconcept all-hydrogel-state supercapacitor is fabricated, which exhibits ah igh areal capacitance of 808.2 mF cm À2 , and ah igh energy density of 0.63 mWh cm À3 at high power density of 28.42 mW cm À3 ,s uperior to many recently reported conductingp olymer hydrogels based supercapacitors. This study demonstrates an ovel promising strategy to fabricate self-standingc onducting polymer hydrogels.

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Free-standing PEDOT/polyaniline conductive polymer hydrogel for flexible solid-state supercapacitors

Cited by 145 publications

References 72 publications

Fabrication and Electrochemical Performance of PVA/CNT/PANI Flexible Films as Electrodes for Supercapacitors

Fabrication and Electrochemical Performance of PVA/CNT/PANI Flexible Films as Electrodes for Supercapacitors

Research Progress on Applications of Polyaniline (PANI) for Electrochemical Energy Storage and Conversion

Self‐Standing Hydrogels Composed of Conducting Polymers for All‐Hydrogel‐State Supercapacitors

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