Electrochemical performance of l-tryptophanium picrate as an efficient electrode material for supercapacitor application. Issue 22 (22nd May 2019)

• Record Type: Journal Article
• Authors: Srinivasan, Rajkumar; Elaiyappillai, Elanthamilan; Gowri, S.; Bella, A.; Sathiyan, A.; Meenatchi, B.; Merlin, Johnson Princy
• Is Part Of: Physical chemistry chemical physics. Volume 21:Issue 22(2019)
• Page Start: 11829
• Page End: 11838
• Publication Date: 2019-05-22
• Subjects: Chemistry, Physical and theoretical -- Periodicals; 541.3
• DOI: 10.1039/c9cp02536g
• Languages: English
• ISSNs: 1463-9076

Abstract

Abstract : l -Tryptophanium picrate was synthesized and evaluated for its supercapacitor behavior and a 263 F g −1 specific capacitance was achieved. 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, 1 H-NMR, 13 C-NMR and GC-MS. The significant capacitive behaviour ofl -tryptophanium picrate was investigated by cyclic voltammetric studies (CV), galvanostatic charge–discharge tests and impedance spectroscopy techniques in 1 M aqueous KOH. The newly fabricatedl -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.