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Synthesis and characterization of polyaniline-grafted CNT as electrode materials for supercapacitors

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Abstract

Polyaniline (PANI) was grafted with carbon-nanotubes (CNT) via azobenzene (Azo) to increase the pseudo-capacitance of PANI. CNT was functionalized with azobenzene and used in the in-situ polymerization of aniline using emulsion polymerization. X-ray diffraction result supports the formation of composite materials. Morphology of grafted composites showed a higher uniform growth in PANI/ CNT-Azo composite than PANI/CNT composite. Electrochemical performance was evaluated by symmetric super-capacitor cells using cyclic voltammetry and chargedischarge studies. PANI/CNT-Azo showed a higher specific capacitance value than pristine PANI. The results show grafting of PANI onto CNT via Azo helps to achieve higher capacitance and thermal stability than non-grafted PANI/CNT composite materials.

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Acknowledgements

This research was supported by the 2017 Inje University Research Grant.

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Authors and Affiliations

  1. Department of Chemistry and Nanoscience and Engineering, Center for Nanomanufacturing, Inje University, Gimhae, Gyeongnam, 50834, Korea

    Umashankar Male, Bo Kyoung Shin & Do Sung Huh

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  1. Umashankar Male
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  2. Bo Kyoung Shin
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  3. Do Sung Huh
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Correspondence to Do Sung Huh.

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Male, U., Shin, B.K. & Huh, D.S. Synthesis and characterization of polyaniline-grafted CNT as electrode materials for supercapacitors. Macromol. Res. 25, 1121–1128 (2017). https://doi.org/10.1007/s13233-017-5163-0

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  • DOI: https://doi.org/10.1007/s13233-017-5163-0

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