Imidazolium cation linkers of polyoxomolybdate-polypyrrole nanocomposite electrode-based energy storage supercapacitors

Muhammed Anees, P.K. and Vannathan, Anjana Anandan and Abhijith, M.B. and Kella, Tatinaidu and Shee, Debaprasad and et al, . (2022) Imidazolium cation linkers of polyoxomolybdate-polypyrrole nanocomposite electrode-based energy storage supercapacitors. Materials Chemistry and Physics, 277. pp. 1-12. ISSN 0254-0584

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Abstract

The electrochemical properties of a new hybrid electrode, liquid-polyoxometalate-polypyrrole (BMIM-PVMo11-PPy) have been studied. The H4[PVMo11O40] (PVMo11) was combined with 1-Butyl-3-methyl-imidazolium (BMIM) ionic liquid and then doped on the polypyrrole (PPy) surface. In order to investigate the interaction between the BMIM, PVMo11, and PPy compound was characterized using various analytical techniques, such as Infrared spectroscopy, thermal stability analysis, powder X-ray diffraction, multinuclear NMR (1H and 13C), FESEM, EDX, and surface adsorption studies. The electrochemical performance of the BMIM-PVMo11-PPy composite material has been tested in an aqueous 0.25 M H2SO4 electrolytic solution. The BMIM-PVMo11-PPy composite exhibits the highest specific capacitance of 527.39 F g−1 at a current density of 1 A g−1, along with remarkable specific energy and power of 51.07 Wh kg−1 and 1078.96 W kg−1, respectively. The BMIM-PVMo11-PPy composite was observed to light up red and blue color LED bulbs for 66 and 16 s, respectively, with 84 mg of sample coated on carbon cloth, suggesting an incredible specific power of that material. © 2021 Elsevier B.V.

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IITH Creators:

IITH Creators	ORCiD
Shee, Debaprasad	https://orcid.org/0000-0002-3503-8098

Item Type:

Article

Additional Information:

This work is supported by the Council of Scientific and Industrial Research (CSIR) under scheme 01/(2906)/17/EMR-II. M. A. P. K and A. A. V. thank the National Institute of Technology Karnataka for their financial assistance in carrying out the research.

Uncontrolled Keywords:

Ionic liquid; Polyoxometalate; Polypyrrole; Specific energy; Supercapacitors

Subjects:

Chemistry
Chemical Engineering

Divisions:

Department of Chemical Engineering
Department of Chemistry

Depositing User:

. LibTrainee 2021

Date Deposited:

13 Jul 2022 15:16

Last Modified:

13 Jul 2022 15:16