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Surfactant assisted synthesis of SrFe10Al2O19: Magnetic and Supercapacitor ferrite

Published online by Cambridge University Press:  28 June 2016

D. Neupane ,
H. Adhikari ,
B. Sapkota ,
J. Candler ,
R. Gupta  and
S. R. Mishra
D. Neupane
Affiliation:
Department of Physics, The University of Memphis, Memphis, TN 38152, USA
H. Adhikari
Affiliation:
Department of Physics, The University of Memphis, Memphis, TN 38152, USA
B. Sapkota
Affiliation:
Department of Physics, The University of Memphis, Memphis, TN 38152, USA Department of Physics, Northeastern University, Boston, MA 602115, USA
J. Candler
Affiliation:
Department of Chemistry, Pittsburg State University, Pittsburg, KS 66762, USA
R. Gupta
Affiliation:
Department of Chemistry, Pittsburg State University, Pittsburg, KS 66762, USA
S. R. Mishra*
Affiliation:
Department of Physics, The University of Memphis, Memphis, TN 38152, USA
*
*(Email: srmishra@memphis.edu)
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Abstract

The aluminum doped SrFe12O19 hexaferrite samples were prepared via co-precipitation method using cetyltrimethyl ammonium bromide (CTAB) as a surfactant. The effects of CTAB content (x = 0, 1, 3, 6 and 9 wt. %) on the structure, morphology, and electrocapacitive behavior of the SrFe10Al2O19 nanoparticles were investigated. The use of CTAB was observed to be effective in eliminating α-Fe2O3 phase from samples. Morphological changes including grain and crystallite size was noticed with the increase in the CTAB content. With the increase in CTAB, powder particles grew in size and thickness. A concomitant increase in magnetization due to crystal growth was observed. Electrochemical performance of supercapacitors was evaluated by cyclic voltammetry (CV). Highest power density of 368.09 WKg-1 and energy density of 0.916 WhKg-1 was observed for 3% and 1% CTAB samples, respectively.

Keywords

electrochemical synthesisenergy storagemagnetic properties
Type
Articles
Information
MRS Advances , Volume 1 , Issue 45: Energy and Environment , 2016 , pp. 3099 - 3106
Copyright
Copyright © Materials Research Society 2016 

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