Introduction to Nife2o4 Nanoparticles

What is/are Nife2o4 Nanoparticles?

Nife2o4 Nanoparticles - Today, the application of NiFe2O4 nanoparticles is increasing in the field of technology that is in great demand, thereby increasing the demand for industrial production. ^[1] A new co-Pickering stabilization system of Span 80 and NiFe2O4 nanoparticles was used to prepare ultra-concentrated internal phase water-in-oil (W/O) emulsions. ^[2] In this report, a detail analysis of the impact of annealing temperature on the structural, elastic, morphological, optical, and magnetic behavior of NiFe2O4 nanoparticles prepared by the citrate sol-gel method is presented. ^[3] In this work, we probe the effect of NiFe2O4 nanoparticles (NPs) as catalysts in heavy crude oil upgrading in low hydrogen/feedstock ratio, that can occur in places where the conditions cannot be controlled, such as inside oil reservoir. ^[4] The structural characterization techniques, such as X-ray diffraction, Raman spectra, and transmission electron microscopy, indicate that the material adopts a unique core–shell structure with NiFe2O4 nanoparticles situated in the center and an rGO layer coated on the surface of NiFe2O4 particles (denoted as NiFe2O4/rGO). ^[5] The adsorptive and photocatalytic results revealed that 3% ZnO/NiFe2O4 exhibits higher efficiency compared to ZnO and NiFe2O4 nanoparticles alone and in the order of 3% ZnO/NiFe2O4 > NiFe2O4 > ZnO. ^[6] The morphological study shows that NiFe2O4 nanoparticles with a small size (tens of nanometers) are coated on the MWCNTs, leading to a three-dimensional hierarchical nanostructure. ^[7] In this work, CPNs were designed and synthesized by incorporating a metal oxide magnetic core (Fe3O4 and NiFe2O4 nanoparticles, 5 nm) into their matrix during the nanoprecipitation method. ^[8] In the present study, we have fabricated novel magnetic ionic liquid based nanocomposites using 1-butylimidazole, (3-bromopropyl)-trimethoxysilane and NiFe2O4 nanoparticles. ^[9] The main objective of this study is to investigate the structural features, magnetic behaviour, photocatalytic properties and blood compatibility of NiFe2O4 nanoparticles (NPs) obtained by subnanosecond laser ablation in water. ^[10] The current manuscript highlights the preparation of NiFe2O4 nanoparticles by adopting sol-gel auto combustion route. ^[11] SiO2/NiFe2O4 NC possesses excellent catalytic activity rather than SiO2 and NiFe2O4 nanoparticles (NPs) in 4-nitroaniline reduction, and over 95 % of 4-nitroaniline was reduced to p-phenylenediamine within 30 min. ^[12] Herein, heterogeneous FeNi3/NiFe2O4 nanoparticles are successfully embedded in modified graphene (mGr) matrix with network structure. ^[13] The effects of three types of salt including NaF, KCl, and NaCl on the properties of NiFe2O4 nanoparticles using salt-assisted solution combustion synthesis (SSCS) have been investigated. ^[14] NiFe2O4 nanoparticles had been successfully synthesized by solution combustion method using urea fuel (organic precursor). ^[15] This paper presents the synthesis of NiO and NiFe2O4 nanoparticles (NPs), with an average crystallite size of 7 ± 0. ^[16] In this study, the NiFe2O4 nanoparticles (NPs) were fabricated and applied as a conductive material to enhance the AD via promoting the direct interspecies electron transfer (DIET). ^[17] The surfactants Fe(AOT)2 and Ni(AOT)2, prepared by replacing the Na+ ions of NaAOT with Fe2+ and Ni2+ respectively, were used as precursors in the synthesis of Fe3O4 and NiFe2O4 nanoparticles. ^[18] The excellent activity and stability of the electrocatalysts are attributed to nickel and iron ions with uniform dispersion at atomic level in the NiFe2O4 phase and the synergistic effect of nickel and NiFe2O4 nanoparticles with amorphous carbon atoms or nanoparticles around. ^[19] In this study, NiFe2O4 nanoparticles (NPs) were prepared using the polymeric precursor method and calcined at 500°C for 4 hours with (S- NiFe2O4) and without (NiFe2O4) CTAB as a surfactant, respectively. ^[20] In this work, to enhance supercapacitor research performance, we have prepared two different types of ferrites as CoFe2O4 and NiFe2O4 nanoparticles by two different routes, such as co-precipitation followed by hydrothermal method and facile hydrothermal method for the first time. ^[21] NiFe2O4 nanoparticles (NPs) were synthesized first time using the leaves extract of Juglans regia via a straightforward process. ^[22] Using a facile hydrothermal method, rGO nanoflakes were synthesized from the negative value coconut coir biowaste and then decorated with functional NiO and NiFe2O4 nanoparticles to produce hierarchical functional nanocomposites. ^[23] NiFe2O4 nanoparticles (NPs) have attracted great attention in vast fields such as sodium-ion batteries (NaIBs), bio-sensing, and catalysis. ^[24] A facile and economical hydrothermal method was used to synthesize α-Fe2O3 and NiFe2O4 nanoparticles with cubic spinel structure. ^[25] The Scanning Electron Microscope (SEM) result showed that the NiFe2O4 nanoparticles are deposited on g-C3N4 nanosheet. ^[26] The NiFe2O4 nanoparticles (NPs) were synthesized by sol-gel auto-combustion method and, the NBR/PVC/NiFe2O4 nanocomposites were prepared by two-roll mill method. ^[27] The natural nanofibers/NiFe2O4 nanoparticles composite nanosheets with adjustable stacked pore structure can be prepared from natural nanofibers/NiFe2O4 nanoparticles composite hydrogel via unidirectional freeze-shaping. ^[28] Concentrations of TiO2 and NiFe2O4 nanoparticles membranes are varied from 0 to 20 and 0 to 2 wt% respectively. ^[29] We investigated the toxicity of two Fe-oxides: Fe2O3 nanoparticles and nanorods; and three MFe2O4 spinels: NiZnFe4O8, ZnFe2O4, and NiFe2O4 nanoparticles. ^[30] Also, NiFe2O4 nanoparticles increased the bio-oil yield and are useful to produce magnetic bio-char. ^[31] The surface area of finely grown hierarchical MnO2 flowers on NiFe2O4 nanoparticles was measured through BET isothermal studies. ^[32] The hybrid combined the advantages of Co3O4 and NiFe2O4 nanoparticles, presenting enhanced electrochemical properties than its single component. ^[33] XRD structural analysis demonstrated that NiFe2O4 nanoparticles (NPs) have a cubic inverse spinel crystal structure. ^[34] In this work, NiFe2O4 nanoparticles were successfully supported on cotton-based carbon fibers through a flexible two-step approach consisting of calcination of cotton in a N2 atmosphere and subsequent hydrothermal reaction. ^[35] Finally, comparing the chemical composition of the samples, it was observed that the CoFe2O4 nanoparticles have the greatest value of saturation magnetization (~53 emu/gr), while the NiFe2O4 nanoparticles showed the lowest value of 6. ^[36] Assisting by the unique supercritical carbon dioxide (SC CO2) technique, NiFe2O4 nanoparticles are directly anchored on the vertically aligned carbon nanotubes (VACNT). ^[37] NiFe2O4 nanoparticles provide highly sulfiphilic sites to confine lithium polysulfides by the formation of Li-O and S-O bonds, and act as an electrocatalyst to promote the conversion of polysulfides. ^[38] Boron-doped C3N4 (BCN) was prepared by simple thermal condensation of dicyandiamide with boric acid, and NiFe2O4 nanoparticles were prepared by the simple sol-gel method. ^[39] NiFe2O4 nanoparticles have been prepared by co-precipitation procedure and coated with SiO2 following the Stöber process. ^[40] A range of multifunctional magnetic metal–organic framework nanomaterials consisting of various mass ratios of the metal–organic framework MIL-53(Fe) and magnetic SiO2@NiFe2O4 nanoparticles were designed, prepared, characterized, and evaluated as heterogeneous catalysts for the Knoevenagel condensation. ^[41] It is shown that the redistribution of ions over nonequivalent crystallographic positions occurs upon a decrease in the size of NiFe2O4 crystallites to nanovalues, thus leading to the structural transformation of NiFe2O4 nanoparticles from inverse spinel to mixed spinel. ^[42] 6 nm for NiFe2O4 nanoparticles annealed at 600 °C (NFD@600), 800 °C (NFD@800), and 1000 °C (NFD@1000), respectively. ^[43] Recently we have reported a qualitative, quantitative and reproducible study of the generation of free radicals as a result of the surface catalytic activity of Fe3O4, Fe2O3, MnFe2O4 and NiFe2O4 nanoparticles as a function of the Fe2+/Fe3+ oxidation state under different pHs (4. ^[44] The XRD and FESEM analyses indicated that rGO surface was covered by TiO2 and NiFe2O4 nanoparticles (NPs). ^[45] Doped hydrogels with Methylene-Blue (MB), Rhodamine-B (RB), MB/RB dyes and NiFe2O4 nanoparticles (NPs) were developed as an experimental model to describe the dielectric/electric response of lipid matrix in biological cell membranes and biological systems. ^[46] The VSM magnetic investigations revealed unusual inverted hysteresis behavior of the as-prepared C-NiFe2O4 nanoparticles. ^[47] The X-ray diffraction pattern of the as-synthesized sample shows formation of NiFe2O4 nanoparticles (NPs) as the main phase, with mean crystalline size ∼50 nm. ^[48] The results illustrate that by calcination of NiFe2O4 nanoparticles the magnetic behaviours of samples change from super-paramagnetic to ferromagnetic. ^[49] A sensing platform with NiFe2O4 nanoparticles integrated into carbon paste for the electrochemical determination of nitrite has been developed. ^[50]

reduced graphene oxide

NiFe2O4 nanoparticles (NPs) and NiFe2O4-reduced graphene oxide (NiFe2O4-rGOX, X = 5, 10, 15 and 20 wt% of GO) nanocomposites (NCs) based electrocatalysts have been synthesized by hydrothermal method and employed for the first time in the direct and sensitive determination of perilous p-Nitrophenol (PNP) using Square Wave Anodic Stripping Voltammetry (SWASV). ^[1] 5 dB for the elastomer nanocomposite sheet having filler NiFe2O4 nanoparticles with reduced graphene oxide. ^[2] Herein, we presented electromagnetic interference shielding characteristics of NiFe2O4 nanoparticles—in-situ thermally-reduced graphene oxide (RGO)—polypropylene nanocomposites with the variation of reduced graphene oxide content. ^[3] It is shown herein, that an effective remedy for these problems can be achieved by introducing highly conductive two dimensional (2D) reduced graphene oxide (rGO) substrate on which NiFe2O4 nanoparticles are well distributed. ^[4]

Synthesized Nife2o4 Nanoparticles

Results manifested that the as-synthesized NiFe2O4 nanoparticles displayed hexagonal morphology with a mean size of 40 nm. ^[1] In this work, unsaturated polyester resin matrix based polymer nanocomposites were fabricated incorporating sol-gel synthesized Fe2O3, TiO2 and co-precipitation synthesized NiFe2O4 nanoparticles. ^[2] The synthesized NiFe2O4 nanoparticles and PRh/NiFe2O4 nanocomposite were chemically, magnetically and morphologically characterized using FTIR, FESEM, DLS, VSM and XRD techniques. ^[3]

Magnetic Nife2o4 Nanoparticles

The nanocomposite includes the guanidine anchored on to magnetic NiFe2O4 nanoparticles were used as the active base nanocatalyst for the sonication synthesis of 4H-chromenes compounds. ^[1] Magnetic NiFe2O4 nanoparticles and multi-walled carbon nanotubes functionalized cellulose composite (m-NiFe2O4/MWCNTs@cellulose) as a magnetic bioadsorbent was prepared and used for effectively removing Congo Red (CR) from aqueous solution. ^[2] The magnetic NiFe2O4 nanoparticles were attached on the surfaces or inserted into the interlayers of Ti3C2Tx MXene. ^[3]

Spinel Nife2o4 Nanoparticles

Spinel NiFe2O4 nanoparticles have been synthesized via hydrothermal route using Mangifera indica flower extract (MIFE) as a green surfactant and reducing agent. ^[1] The overall results showed that even a small amount of Mg2+ doping changes the structural and magnetic properties of the spinel NiFe2O4 nanoparticles. ^[2]