FESEM-EDX and CV characteristics of dopant (Mn, Co, Ni) magnesium ferrites
Doping magnesium ferrites (MgFe2O4) with Mn,Co and Ni,which were synthesized by sol gel method using citric acid and polyvinyi alcohol (PVA) and calcined at 500℃,showed interesting electrochemical features based on their cyclic voltammetric (CV) characteristics using 5 μL ferrite-poly vinylidene fluoride in ethanol deposited on a screen printed carbon electrode (SPCE) in a mixture of 1.0 M KOH and ferricyanide solution recorded with a scan rate of 0.02 Vs-1.The Mn doped magnesium ferrite (x =0.9) showed the most remarkable CV performance over other doped element (Co and Ni) and un-doped magnesium ferrites.The surface morphology of doped ferrites was studied by applying a field emission scanning electron microscope (FESEM) in conjunction with an energy dispersive X-ray spectroscopy (EDX) analysis.The results revealed that Mn posed the highest percentage on the surface (≈ 21.5 %),followed by Co (≈ 19.5%) and Ni (≈ 6.7%) with respect to x =0.9 of M0.9Mg0.1Fe2O4 (M =Co,Mn and Ni) at 500℃ calcination.The study showed the possibility of yielding semi conducting ferrites using own fabricated magnesium ferrite and its metal doping.
doped magnesium ferrite CV performance FESEM-EDX analysis
Siti Soleha Jonit Madzlan Aziz Rita Sundari
Department of Chemistry, Faculty of Science, Universiti Technologi Malaysia, UTM Skudai, 81310,Johor, Malaysia
国际会议
太原
英文
150-153
2013-01-13（万方平台首次上网日期，不代表论文的发表时间）