Synthesis and comparison of different spinel ferrites and their catalytic activity during chemical vapor deposition of polymorphic nanocarbons

Dhand, Vivek; Mittal, Garima; Rhee, Kyong Yop; Park, Soo‐Jin

doi:10.1007/s40684-017-0049-3

Cited by 20 publications

(3 citation statements)

References 47 publications

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“…On the other side, particles at low temperatures are small and amorphous. In a CVD reaction carried out directly on spinel ferrite nanoparticles MFe 2 O 4 (M = Co, Cu, Ni, Mn, Fe, or Zn) supported on a 316 grade SS foil, several morphologies of carbon nanomaterials were generated [43]. Polymorphic carbons (PNCs) with varying forms and sizes were discovered to be the acquired components in each ferrite.…”

Section: Chemical Vapor Deposition Methodsmentioning

confidence: 99%

Synthesis Routes for Ferrites and Their Impact on the Properties of Ferrites

Rana

Dhiman

Kumar

et al. 2021

Engineering Materials

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Nano ferrites have piqued interest owing to their numerous uses in biomedical, wastewater remediation, and electronic devices. This chapter is primarily concerned with the various fabrication techniques for ferrite nanoparticles. This chapter presents various methods used for ferrites preparation with distinctive examples, their advantages as well as limitations in detail. The fabrication techniques used to achieve ferrites nanoparticles of various structures and morphologies, such as hydrothermal, microemulsion, solvothermal, solution combustion, microwave, chemical vapor deposition, sol-gel, chemical bath deposition, or wet chemical synthesis, sonochemical, thermal decomposition, and electrochemical methods, are briefly described. This chapter summarizes the recent work on the influence of synthesis techniques on the properties of ferrites in nanoform. Ferrites belong to the materials which are a potential candidate for widely spread applications. Keywords Ferrites • Nano materials • Synthesis techniques 1 IntroductionThe three major targets of magnetic nanomaterials are synthesis, knowledge of novel advanced materials, and relationships between them. Nanomaterials are those materials whose particle size lies between the range of 10-100 nm in at least one or more dimensions, as defined by their nanometric equivalents. A large number of atoms are present at or near the surface of particles at this length scale, giving the materials their specific properties. Nanomaterials have a high surface-to-volume ratio which

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Section: Chemical Vapor Deposition Methodsmentioning

confidence: 99%

Synthesis Routes for Ferrites and Their Impact on the Properties of Ferrites

Rana

Dhiman

Kumar

et al. 2021

Engineering Materials

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“…The use of various ferrites in the preparation of CNTs has been reported by Dhand et al using CVD method [28]. Based on the reported studies and previous investigations of this group, among various possible catalysts for preparing these materials, ferrites showed the highest efficiency in the preparation of SCNFs.…”

Section: Introductionmentioning

confidence: 91%

The synthesis of sulfur-doped carbon nanofibers using chemical vapor deposition on the nickel-ferrite catalyst and the gold decoration of the product for morphine sensing

2020

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Sulfur-doped carbon nanofibers (SCNFs) were prepared using chemical vapor deposition. In this line, different catalysts and various growth temperatures have been examined to obtain the optimized conditions. Among the employed catalysts, NiFe 2 O 4 showed the most performance, and the best quality of the prepared SCNFs was 600 °C. To enhance the electrochemical behaviors, the prepared SCNFs was decorated with gold nanoparticles using electrochemical deposition. Both products (doped and undoped) were fully characterized using common methods. Then, they used for the electrochemical detection of morphine using cyclic voltammetry and square wave voltammetry. The obtained electrochemical diagrams demonstrated the high efficiency of the synthesized product for sensing of morphine.

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“…Among the ferrites the spinel ferrites are of great importance to many scientist and technologist. They are chemically characterized by the formula AB2O4, where A stands for divalent metal ions like Co 2+ , Ni 2+ , Zn 2+ , Cu 2+ etc and B stands for the iron Fe 3+ ions [3]. Spinel ferrite possesses two interstitial sites i) tetrahedral (A) site and ii) Octahedral [B] site.…”

Section: Introductionmentioning

confidence: 99%

Preparation of Nickel Ferrite Nanoparticles and its Application in Nanofluids

Wadewale¹,

Bajaj

Raut

et al. 2022

AMR

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The aim of the present research work was to prepare NiFe2O4 nanoparticles using standard wet chemical method namely sol-gel auto-combustion with a view to study them in heat transfer application. The prepared nanoparticles of NiFe2O4 were then applied to prepare nanofluid with deionised water as a base fluid. The characterization of the prepared NiFe2O4 nanopowder is done by X-ray diffractometer (XRD) technique. The XRD pattern was recorded at room temperature. The analysis of XRD pattern was carried by standard software suggests that prepared nickel ferrite nanopowder possess single phase cubic spinel structure. The lattice constant was obtained by using XRD data reasonably agree with the reported values. The mean size of the particle was estimated through XRD pattern, in which the most intense peak (311) was considered to obtain full width at half maxima (FWHM). The Scherrer formula was used to obtain average crystallite size which was found to be 33 nm. The surface morphology of the prepared NiFe2O4nanopowder was studied by means of scanning electron microscopy (SEM) technique. The average grain size determined by linear intercept method was found to be of the order of 40 nm. The SEM image shows formation of spherical grains with some agglomeration. The prepared nanofluid of nickel ferrite was used to estimate thermal conductivity. It was found that, the thermal conductivity of NiFe2O4nanofluid was increased compared to deionised water.

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Synthesis and comparison of different spinel ferrites and their catalytic activity during chemical vapor deposition of polymorphic nanocarbons

Cited by 20 publications

References 47 publications

Synthesis Routes for Ferrites and Their Impact on the Properties of Ferrites

Synthesis Routes for Ferrites and Their Impact on the Properties of Ferrites

The synthesis of sulfur-doped carbon nanofibers using chemical vapor deposition on the nickel-ferrite catalyst and the gold decoration of the product for morphine sensing

Preparation of Nickel Ferrite Nanoparticles and its Application in Nanofluids

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