Effect of substituent position on electrodeposition, morphology, and capacitance performance of polyindole bearing a carboxylic group

Ma, Xiumei; Zhou, Weiqiang; Mo, Daize; Hou, Jian; Xu, Jingkun

doi:10.1016/j.electacta.2015.07.148

Cited by 50 publications

(28 citation statements)

References 77 publications

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“…Similar results were shown by GCD (355, 383, and 430 F g −1 ) at current density of 2.5 A g −1 . Symmetric anodic and cathodic charges demonstrate brilliant efficiency and cyclability of the as-prepared materials attributed to their high adsorptive capacity and facile ion diffusion [46]. PIN-derived porous carbon materials (PIN-PC) at 700-900 °C and 7-20 M KOH solution were synthesized by Wu et al, which were found to have appreciable surface area of 2238 m 2 g −1 with a high specific capacitance and energy density (15 Wh kg −1 ) at 0.2 A g −1 [44].…”

Section: Electrical and Electrochemical Performance Of Pinmentioning

confidence: 99%

Critical analysis of polyindole and its composites in supercapacitor application

Mudila

Prasher

Kumar

et al. 2019

Mater Renew Sustain Energy

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Polyindole-based hybrid composites are being recognized as a promising candidate to be used in energy storage field along with other conjugated organic polymers. Polyindoles themselves are affected with low electrical and electrochemical conductivity; nevertheless, high redox activity, tunable electrical conductivity, significant thermal stability, slow degradation rate, and possible blending property give them upper hand to be used as a good contender. Certain factors viz. electrolyte, concentration, morphology, pH, temperature, etc., are major components affecting performance of Polyindole and its composites. This assessment recapitulates the position of Polyindole and its hybrid composite to be used as energy harvest material; in addition, this evaluation also pronounces the future aspect of the hybrids.

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Section: Electrical and Electrochemical Performance Of Pinmentioning

confidence: 99%

Critical analysis of polyindole and its composites in supercapacitor application

Mudila

Prasher

Kumar

et al. 2019

Mater Renew Sustain Energy

View full text Add to dashboard Cite

show abstract

“…Meanwhile, a decrease in specific capacitance with an increasing scan rate could be easily observed owing to the ion exchange mechanism. At low scan rates, the sufficient time facilitated the thorough diffusion and migration of electrolytic ions into the active materials, while under high scan rates, the diffusion effect caused the inaccessibility for ions to get in and out . The galvanostatic charge/discharge (CD) method was also conducted in the current density range of 0.2–1.2 mA cm −2 .…”

Section: Resultsmentioning

confidence: 99%

One‐Step Electrodeposition Method to Prepare Robust Flexible PEDOT‐Based Films for Ultra‐Stable Supercapacitors

Zhu

Zhou

et al. 2018

ChemElectroChem

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“…16 Xu et al prepared a series of electron-deficient groups substituted polyindole at 5-, 6-, 7-positions, and various capacitance of polymers are obtained. 17,18 Therefore, bis(alkoxy)-substituted p-phenylenes at ortho-position replacing that at paraposition is used to construct hybrid conjugated block, which might exhibit disparate properties.…”

Section: Introductionmentioning

confidence: 99%

High‐performance hybrid polymer based on bis(alkoxy) ortho‐substituted para‐phenylene

Ming

Zhang

Lin

et al. 2020

Journal of Polymer Science

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Compared to bis(alkoxy) group para-substituted para-phenylene (p-phenylene) widely used as spacer, the isomer ortho-substituted p-phenylene is rarely studied in constructing organic optoelectronic materials. In this manuscript, bis(hexyloxy) group ortho-substituted p-phenylene was used to construct hybrid thienylene-phenylene polymer poly(EDOT-o-BE). The density functional theory study indicated the dihedral angles between thienylene and phenylene are 15 for ortho-substituted EDOT-o-BE and 10 for parasubstituted EDOT-p-BE. Poly(EDOT-o-BE) exhibits the little potential difference between cathodic (0.61 V) and anodic (0.65 V) peaks even at the high potential scan rate, different from bis(alkoxy) para-substituted control polymer poly(EDOT-p-BE). Moreover, the free-standing poly(EDOT-o-BE) film displays better stability than poly(EDOT-p-BE) due to the little degradation of molecular chains. Compared to poly(EDOT-p-BE), poly(EDOT-o-BE) possesses higher ionic transport and different molecular aggregation. These results indicate the positions of side chains have important influence on the properties of conjugated polymer, including molecular configuration, aggregation state, film quality, electrochemical behavior and optical absorption.

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Effect of substituent position on electrodeposition, morphology, and capacitance performance of polyindole bearing a carboxylic group

Cited by 50 publications

References 77 publications

Critical analysis of polyindole and its composites in supercapacitor application

Critical analysis of polyindole and its composites in supercapacitor application

One‐Step Electrodeposition Method to Prepare Robust Flexible PEDOT‐Based Films for Ultra‐Stable Supercapacitors

High‐performance hybrid polymer based on bis(alkoxy) ortho‐substituted para‐phenylene

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