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Electrochemical performance of L-tryptophanium picrate as an efficient electrode material for supercapacitor application

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Abstract

A new, prominently stable organic material, L-tryptophanium picrate, was synthesized via a one-step process. The as-prepared sample was characterized by UV-visible, FT-IR, Raman, TGA-DSC, XRD, FE-SEM, EDX, 1H-NMR, 13C-NMR and GC-MS. The significant capacitive behaviour of L-tryptophanium picrate was investigated by cyclic voltammetric studies (CV), galvanostatic charge–discharge tests and impedance spectroscopy techniques in 1 M aqueous KOH. The newly fabricated L-tryptophanium picrate electrode material exhibited an excellent specific capacitance of 263 F g−1 at a current density of 1 A g−1. Furthermore, it exhibited a capacitance retention of about 92% even after 2000 consecutive charge/discharge cycles. Moreover, the as-prepared electrode material illustrated electrochemically reversible behaviour. In addition, the synthesized material showed good electrochemical performance under the selected potential window. Thus, the fabricated electrode was proved to be a promising alternate electrode for high performance energy storage applications.

Graphical abstract: Electrochemical performance of l-tryptophanium picrate as an efficient electrode material for supercapacitor application

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Publication details

The article was received on 05 May 2019, accepted on 14 May 2019 and first published on 14 May 2019


Article type: Paper
DOI: 10.1039/C9CP02536G
Phys. Chem. Chem. Phys., 2019, Advance Article

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    Electrochemical performance of L-tryptophanium picrate as an efficient electrode material for supercapacitor application

    R. Srinivasan, E. Elaiyappillai, S. Gowri, A. Bella, A. Sathiyan, B. Meenatchi and J. P. Merlin, Phys. Chem. Chem. Phys., 2019, Advance Article , DOI: 10.1039/C9CP02536G

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