To main content

Advancing Energy Storage Competence through Copper Phthalocyanine-Stabilized Titanium Nitride Hybrid Nanocomposites for Symmetric Supercapacitors

Abstract

In situ-grown copper phthalocyanine (nCuPc) nanorod structures with nano titanium nitride (TiN_nCuPc) hybrid composites were acquired via hydrothermal conditions. As-synthesized TiN_nCuPc composites were physicochemically characterized using various spectroscopic techniques such as UV–vis, Fourier transform infrared, field emission scanning electron microscopy, powder X-ray diffraction, and X-ray photoelectron spectroscopy analysis, including detailed electrochemical studies. The composites showed promising electrochemical stability with cumulative capacitive behavior due to an effective interfacial interaction. The electrochemical characterization of the composites (TiN_nCuPc_1, TiN_nCuPc_3, and TiN_nCuPc_6) with varied amounts of nCuPc to TiN was analyzed in detail using cyclic voltammetric techniques, impedance spectroscopy, and galvanostatic charge–discharge analysis. The hybrid composite TiN_nCuPc_3 showed a specific capacitance of 36.8 Fg–1 at 0.25 Ag–1 in a three-electrode system and 29.7 Fg–1 at 0.25 Ag–1 in a two-electrode system. As-fabricated TiN_nCuPc_3 symmetric supercapacitor electrodes showed outstanding cycling stability with remarkable capacity retention of 93.5% and with 80.7% energy efficiency of pertinent 30,000 cycles.

Category

Academic article

Language

English

Author(s)

  • Chattanahalli Devendrachari Mruthyunjayachari
  • Ganesh Shimoga
  • Lee Seok-Han
  • Heo Yong-Hae
  • Makri Nimbegundi Kotresh Harish
  • Palem Ramasubba Reddy
  • Kim Sang-Youn
  • Choi Dong-Soo

Affiliation

  • SINTEF Industry / Biotechnology and Nanomedicine
  • India
  • Dongguk University
  • Korea University of Technology and Education

Year

2023

Published in

ACS Applied Energy Materials

Volume

6

Issue

21

Page(s)

11199 - 11211

View this publication at Norwegian Research Information Repository