TY - JOUR
T1 - Advancing Energy Storage Competence through Copper Phthalocyanine-Stabilized Titanium Nitride Hybrid Nanocomposites for Symmetric Supercapacitors
AU - Chattanahalli Devendrachari, Mruthyunjayachari
AU - Shimoga, Ganesh
AU - Lee, Seok Han
AU - Heo, Yong Hae
AU - Makri Nimbegondi Kotresh, Harish
AU - Palem, Ramasubba Reddy
AU - Kim, Sang Youn
AU - Choi, Dong Soo
N1 - Publisher Copyright:
© 2023 American Chemical Society.
PY - 2023/11/13
Y1 - 2023/11/13
N2 - 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.
AB - 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.
KW - conducting interface
KW - copper phthalocyanine
KW - solid-state device
KW - symmetric supercapacitor
KW - titanium nitride
UR - http://www.scopus.com/inward/record.url?scp=85177490561&partnerID=8YFLogxK
U2 - 10.1021/acsaem.3c02093
DO - 10.1021/acsaem.3c02093
M3 - Article
AN - SCOPUS:85177490561
SN - 2574-0962
VL - 6
SP - 11199
EP - 11211
JO - ACS Applied Energy Materials
JF - ACS Applied Energy Materials
IS - 21
ER -