title: Role of heat on the development of electrochemical sensors on bare and modified Co3O4/CuO composite nanopowder carbon paste electrodes.
abstract: The Co3O4/CuO composite nanopowder (NP) was synthesized by a mechanochemical method and characterized by using powder X-ray diffraction (PXRD), Fourier transform infrared spectroscopy (FTIR), scanning electron microscopy (SEM) and energy-dispersive spectroscopy (EDS). The synthesized Co3O4/CuO NP was used as a modified carbon paste electrode (MCPE) and further the bare carbon paste and Co3O4/CuO NP modified carbon paste was heated at different temperatures (100, 150, 200 and 250 °C) for 10 min. The Co3O4/CuO NP MCPE was used to study the consequences of scan rate and dopamine concentration. Furthermore the preheated modified electrodes were used to study the electrochemical response to dopamine (DA), ascorbic acid (AA) and uric acid (UA).
authors.affiliation: Department of P.G. Studies and Research in Industrial Chemistry, Kuvempu University, Shankaraghatta, 577 451 Shimoga, Karnataka, India.
authors.forename: Mohan
authors.initials: M
authors.lastname: Kumar
authors.affiliation: Department of P.G. Studies and Research in Industrial Chemistry, Kuvempu University, Shankaraghatta, 577 451 Shimoga, Karnataka, India. Electronic address: kumaraswamy21@yahoo.com.
authors.forename: B E
authors.initials: BE
authors.lastname: Kumara Swamy
mesh_terms: D001205:Ascorbic Acid / Q000032:analysis / Q000737:chemistry; D002244:Carbon; D003035:Cobalt / Q000737:chemistry*; D003300:Copper / Q000737:chemistry*; D004298:Dopamine / Q000032:analysis / Q000737:chemistry; D055664:Electrochemical Techniques / Q000379:methods*; D004566:Electrodes; D006358:Hot Temperature; D049329:Nanostructures / Q000737:chemistry*; D010087:Oxides / Q000737:chemistry*; D014527:Uric Acid / Q000032:analysis / Q000737:chemistry
chemical_list: D010087:Oxides; D014527:Uric Acid; D003035:Cobalt; D002244:Carbon; D003300:Copper; D001205:Ascorbic Acid; C060728:cobalt oxide; C030973:cupric oxide; D004298:Dopamine
keywords: Co(3)O(4)/CuO composite; Cyclic voltammetry; Dopamine; Mechanochemical method; Preheated carbon paste electrode