Construction of Mn0.5Mg0.5Fe2O4 nano particles

Abstract

M IXED ferrite containing certain amounts of magnesium, manganese and ferric cations was prepared using a simple method. The as prepared ferrite was characterized by X-ray diffraction (XRD), Scanning electron microscopy (SEM) Fourier transform infrared (FTIR) spectroscopy and Energy Dispersive X-ray (EDX) techniques. These techniques revealed that the employed preparation method led to formation of a single phase of nano crystalline Mn 0.5 Mg 0.5 Fe 2 O 4 powder which belongs to spinel structure. However, the structural and morphological properties of the as synthesized ferrite were determined. The magnetic properties of the obtained ferrite were investigated using VSM technique. In addition, the results revealed that the surface area of Mn 0.5 Mg 0.5 Fe 2 O 4 was greater than that of both MnFe 2 O 4 and MgFe 2 O 4 .

Effect of Substitution on the Electric and Magnetic Properties of Ferrites

“…This happened due to the hopping of electrons (negative charge carriers) from Fe 2+ to Fe 3+ , the transfer of holes (positive charge carriers) and Mg 1+ to Mg 2+ were accountable for the conduction mechanism in ferrites [34]. Deraz [35] has prepared Mg 0.5 Mn 0.5 Fe 2 O 4 ferrite by the sol-gel auto-combustion method and reported the values of saturation magnetization and coercivity as 47.78 emu/gm and 93.36 Oe respectively.…”

Katalizatory Złotowe Osadzone Na Zeolitach

“…Impregnacja jest jedną z najprostszych metod wykorzystywanych do preparatyki katalizatorów heterogenicznych. Jej zaletą jest szybkość i prostota wykonania, uniwersalność oraz możliwość łatwego sterowania ilością wprowadzanej fazy aktywnej [59,78,79]. Trudność może stanowić uzyskanie jednorodnego rozkładu fazy aktywnej w porach nośnika [78].…”

“…Pierwszym etapem impregnacji mokrej jest mieszanie nośnika z nadmiarem roztworu prekursora fazy aktywnej (V roztworu > V porów ). Mieszanie jest kluczowym czynnikiem pozwalającym zapewnić efektywną dyfuzję prekursora do wnętrza porów [79]. Po tym etapie rozpuszczalnik odparowuje się do sucha, a powstałe ciało stałe poddaje się suszeniu, które prowadzi do wykrystalizowania prekursora w porach i/lub na powierzchni nośnika.…”

Biosynthesis Effect of Egg White on Formation and Characteristics of NiO/NiCo2O4 Nanocomposites

“…High purity, low grain size, a superior large specific surface area, and superior electrical conductivity can only be achieved through homogenous multicomponent metal oxide materials prepared using minimal-cost, lower-energy techniques. Even though there are other ways to create spinel NiCo 2 O 4 , the auto-combustion strategy is now regarded as one of the most attractive synthesis methods, due to its inherent advantages, which include homogenous heat transmission and an incredibly quick heating duration [20,21]. Utilizing combustion technology, rapid heating can be accomplished through efficient energy transmission.…”