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Cyclic Voltammetric Study of CuO Thin Film Electrodes Prepared by Automatic Spray Pyrolysis
Author(s) -
Kambale Sandesh V.,
Jadhav Amar L.,
Kore Rohan M.,
Thakur Amarsingh V.,
Lokhande Balkrishna J.
Publication year - 2019
Publication title -
macromolecular symposia
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.257
H-Index - 76
eISSN - 1521-3900
pISSN - 1022-1360
DOI - 10.1002/masy.201800213
Subject(s) - horizontal scan rate , electrode , spray pyrolysis , cyclic voltammetry , materials science , pyrolysis , aqueous solution , capacitance , analytical chemistry (journal) , thermal decomposition , oxide , nuclear chemistry , electrochemistry , thin film , chemical engineering , chemistry , metallurgy , organic chemistry , nanotechnology , engineering
This work deals with the study of effect of scan rate on the cyclic voltammetric performance of cupric oxide (CuO) electrodes prepared using automatic spray pyrolysis. For the synthesis via aqueous route, 50 mL of 1 m Cu(NO 3 ) 2 ·3H 2 O was used as a precursor solution and stainless steel (SS) plates were used as a conducting substrates. The spray rate was maintained at 2.5 mL min –1 , decomposition temperature was kept at 673.15 K. In the analysis, XRD patterns clearly substantiate the formation of CuO on SS. Cyclic voltammetric analysis of the prepared electrodes has been carried out in 1 m KOH at various scan rates from 2 to 100 mV s –1 . In CV study, electrode shows decrease in specific capacitance (SC) values with increase in scan rates indicating reversible nature. The achieved highest value of the SC is 58.2 F g –1 .