TY - JOUR
T1 - Synthesis and electrochemical supercapacitive performance of nickel-manganese ferrite composite films
AU - Zate, Manohar K.
AU - Shaikh, Shoyeb Mohamad F.
AU - Jadhav, Vijaykumar V.
AU - Tehare, Kailas K.
AU - Kolekar, S. S.
AU - Mane, Rajaram S.
AU - Naushad, Mu
AU - Pawar, B. N.
AU - Hui, K. N.
N1 - Publisher Copyright:
© 2015 Elsevier B.V. All rights reserved.
PY - 2015/11/1
Y1 - 2015/11/1
N2 - Thin films of sprayed nickel-manganese ferrite i.e. NixMn1-xFe2O4 (x = 0.2, 0.4, 0.6, 0.8) were synthesized onto stainless-steel substrate and envisaged for electrochemical supercapacitor application where surface morphology was influenced by 'x' factor; confirmed from the scanning electron microscopy digital photo-images and energy dispersive X-ray analysis, respectively. The spinel-type rice-like crystallites of NixMn1-xFe2O4 were 70-80 nm in lengths and 20-30 nm in diameters. Cyclic-voltammograms of NixMn1-xFe2O obtained for different 'x' values i.e. morphologies, were used to figure-out the change of the specific capacitance (SC) for different scan rates in 1 M KOH electrolyte. The 147, 120, 131, 185 F g-1 SC values for 0.2, 0.4, 0.6, 0.8 'x' values were obtained at 5 mV s-1 scan rate. Electrochemical impedance spectroscopy measurements of NixMn1-xFe2O4 film electrodes were performed for knowing the charge transport kinetics where composite i.e. 0.4 and 0.6 'x' valued electrodes confirmed least performance than 0.2 and 0.8 'x' values which could be attributed to availability of number of the surface charges.
AB - Thin films of sprayed nickel-manganese ferrite i.e. NixMn1-xFe2O4 (x = 0.2, 0.4, 0.6, 0.8) were synthesized onto stainless-steel substrate and envisaged for electrochemical supercapacitor application where surface morphology was influenced by 'x' factor; confirmed from the scanning electron microscopy digital photo-images and energy dispersive X-ray analysis, respectively. The spinel-type rice-like crystallites of NixMn1-xFe2O4 were 70-80 nm in lengths and 20-30 nm in diameters. Cyclic-voltammograms of NixMn1-xFe2O obtained for different 'x' values i.e. morphologies, were used to figure-out the change of the specific capacitance (SC) for different scan rates in 1 M KOH electrolyte. The 147, 120, 131, 185 F g-1 SC values for 0.2, 0.4, 0.6, 0.8 'x' values were obtained at 5 mV s-1 scan rate. Electrochemical impedance spectroscopy measurements of NixMn1-xFe2O4 film electrodes were performed for knowing the charge transport kinetics where composite i.e. 0.4 and 0.6 'x' valued electrodes confirmed least performance than 0.2 and 0.8 'x' values which could be attributed to availability of number of the surface charges.
KW - Cyclic-voltammetry
KW - Electrochemical impedance spectroscopy
KW - Electrochemical supercapacitors
KW - Specific capacitance
KW - Spinel ferrite
KW - Spray pyrolysis
UR - http://www.scopus.com/inward/record.url?scp=84951149321&partnerID=8YFLogxK
U2 - 10.1016/j.jaap.2015.09.012
DO - 10.1016/j.jaap.2015.09.012
M3 - 文章
AN - SCOPUS:84951149321
SN - 0165-2370
VL - 116
SP - 177
EP - 182
JO - Journal of Analytical and Applied Pyrolysis
JF - Journal of Analytical and Applied Pyrolysis
ER -