Open AccessEnhancement Supercapcitive Behaviour of Cobalt(II) Tetrasulfanilamide Phthalocyanine with Composite rGO on Modified GCE
Author(s) -
K. R. Venugopala Reddy,
N.Y. Praveenkumar,
. Mounesh,
T.M. Sharanakumar,
Sangappa K. Ganiger
Publication year - 2020
Publication title -
asian journal of chemistry/asian journal of chemistry
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.145
H-Index - 34
eISSN - 0975-427X
pISSN - 0970-7077
DOI - 10.14233/ajchem.2020.22803
Subject(s) - cyclic voltammetry , cobalt , gravimetric analysis , phthalocyanine , supercapacitor , composite number , electrochemistry , chemistry , electrode , chemical engineering , capacitance , thermogravimetric analysis , precipitation , nuclear chemistry , analytical chemistry (journal) , materials science , inorganic chemistry , composite material , organic chemistry , engineering , physics , meteorology
A novel method for the fabrication of tetrasulfanilamide cobalt(II) phthalocyanine (CoTSPC) wasdeveloped and the synthesized product was characterized using various techniques namely UV-visible,infrared and X-ray diffraction spectroscopic and thermal gravimetric analysis. An electrode with glassycarbon was modified on CoTSPC with an rGO composite. The effect of experimental parameters,such as precipitation agent, precursor concentration, reaction time and stabilizing agent, wassystematically studied to investigate possible CoTSPC formation. The electrochemical properties ofprepared CoTSPC/rGO/GCE were explored through cyclic voltammetry (CV) by using a three-electrodesystem. The results showed that the specific capacitances and sizes of the fabricated compounds arerelated. Due to a large surface area, within an operated voltage range of −0.2 to 0.4 V, synthesizedCoTSPC/rGO/GCE exhibited an excellent long-cycle life and the highest capacitance (157 F g−1),thereby indicating that fabricated CoTSPC/rGO/GCE can be used as an outstanding electrode materialin supercapacitors.