Effect of calcination temperature on the structural and electrical properties of cobalt ferrite synthesized by combustion method

Khandekar, M.S.; Kambale, Rahul C.; Patil, J.Y.; Kolekar, Y. D.; Suryavanshi, S.S.

doi:10.1016/j.jallcom.2010.10.073

Cited by 151 publications

(43 citation statements)

References 39 publications

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“…The absence of hkl planes of iron or cobalt oxides (Fe 2 O 3 , Fe 3 O 4 , CoO) indicated the purity of the synthesised CFNPs [24]. However, the negligible crystallinity observed for the CoFe 2 O 4 .NPs@XG was caused by the amorphous layer of XG that coated the CFNPs.…”

Section: Discussionmentioning

confidence: 99%

Synthesis and characterisation of doxorubicin-loaded functionalised cobalt ferrite nanoparticles and their in vitro anti-tumour activity under an AC-magnetic field

Mushtaq¹,

Kanwal²,

Islam³

et al. 2017

Trop. J. Pharm Res

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Section: Discussionmentioning

confidence: 99%

Synthesis and characterisation of doxorubicin-loaded functionalised cobalt ferrite nanoparticles and their in vitro anti-tumour activity under an AC-magnetic field

Mushtaq¹,

Kanwal²,

Islam³

et al. 2017

Trop. J. Pharm Res

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“…Various methods are used to synthesize ferrite nanoparticles, such as: combustion, mechanochemical method, redox process, forced hydrolysis, co-precipitation, sol-gel, hydrothermal, polymer combustion method (PC), solid state method (SS), micro-emulsion, sonochemical, electrochemical and thermal decomposition method [7][8][9][10][11][12][13][14][15]. Among these, the combustion is one of the facile and one-step methods since it allows the preparation of nanocrystalline ferrites with an equiaxial shape, well-controlled morphology and narrow particle size distribution [16].…”

Section: Introductionmentioning

confidence: 99%

Nickel ferrite nanoparticle as a magnetic catalyst: Synthesis and dye degradation

Kar

Ghahari

Manteghi

2017

Proceedings of the 21st International Electronic Conference on Synthetic Organic Chemistry

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The aim of this work is the synthesis of NiFe 2 O 4 nanoparticles to catalyze photodegradation of direct red 264 under visible light. So, NiFe 2 O 4 nanoparticles were synthesized by a sol-gel autocombustion method. The catalyst was characterized by XRD, SEM, FT-IR and DRS. The effect of NiFe 2 O 4 nanoparticles as a catalyst was studied on photocatalytic degradation of Direct Red 264 (DR264) in typical wastewater using visible light irradiation. UV-vis spectrophotometer was used to measure concentration of dyes before and after degradation.

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“…Because of their small size and large number of cations, for co-ordination sites, nanocrystallites are capable of enhancing the rate of chemical reactions and are increasingly gaining popularity as reactive nanocrystallites [2]. Various methods are used to synthesize ferrite nanoparticles, such as: combustion, mechanochemical method, redox process, forced hydrolysis, co-precipitation, sol-gel, hydrothermal, polymer combustion method (PC), solid state method (SS), micro-emulsion, sonochemical, electrochemical and thermal decomposition method [3][4][5][6][7][8][9][10][11]. Among the various methods, microwave combustion technique is probably opted for homogeneity, high purity and improved characteristics.…”

Section: Introductionmentioning

confidence: 99%

Microwave assisted sol-gel auto-combustion synthesis of NiCuFe2O4 nanoparticles using citric acid as an organic chelating agent: structural and optical studies

Kar

Manteghi

Ghahari

2015

Proceedings of the 19th International Electronic Conference on Synthetic Organic Chemistry

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Ferrite spinels may also contain mixture of two divalent metal ions, in which ratio of these divalent metal ions may vary, are called mixed ferrite. The cations distribution of mixed ferrite significantly affects the surface properties of ferrospinels making them catalytically active. Because of their small size and large number of cations, for co-ordination sites, nanocrystallites are capable of enhancing the rate of chemical reactions and are increasingly gaining popularity as reactive nanocrystallites. Among the various methods, microwave combustion technique is probably opted for homogeneity, high purity and improved characteristics. The microwave energy is an internal means of heat energy generation and conversion. The microwave energy is transformed into heat energy by strong inter-molecular friction and rises the temperature of the precursor materials suddenly. The use of microwave energy as heating source, speeds up the chemical reaction and kinetics, improve the economical viability, and reduces the energy loss. Complexant organic agents can effectively chelate metal ions with varying ionic sizes. They also serve as reductant being oxidized by nitrate ions, thus working as fuel in a synthetic method named auto combustion sol-gel. Citric acid (C 6 H 8 O 7 ) is most frequently used in producing in large variety of ferrites. It is inexpensive and is a more effective complexing agent than other complexant producing fine ferrite powder with smaller particle size. In this present study, NiCuFe 2 O 4 nanoparticles was prepared by microwave assisted sol-gel auto-combustion method employing nickel nitrate, copper nitrate, iron nitrate, ammonia and citric acid as an organic chelate agent. The nanostructured samples were characterized by XRD, SEM, DRS and FT-IR. X-ray and the FT-IR revealed the formation of cobalt ferrite cubic spinel type structure. The direct band gap was estimated using Kubelka-Munk method and is obtained from the DRS.

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Effect of calcination temperature on the structural and electrical properties of cobalt ferrite synthesized by combustion method

Cited by 151 publications

References 39 publications

Synthesis and characterisation of doxorubicin-loaded functionalised cobalt ferrite nanoparticles and their <i>in vitro</i> anti-tumour activity under an AC-magnetic field

Synthesis and characterisation of doxorubicin-loaded functionalised cobalt ferrite nanoparticles and their <i>in vitro</i> anti-tumour activity under an AC-magnetic field

Nickel<span> ferrite </span>nanoparticle as a magnetic catalyst: Synthesis and dye degradation

Microwave assisted sol-gel auto-combustion synthesis of NiCuFe2O4 nanoparticles using citric acid as an organic chelating agent: structural and optical studies

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