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Synthesis and characterization of the NiFe2O4/Ni3Fe

Nov 15, 2013 The nanocomposite powder of NiFe 2 O 4 /Ni 3 Fe type was obtained by mechanical milling of the nanocrystalline NiFe 2 O 4 with the 20 wt.% of the nanocrystalline Ni 3 Fe. A high energy planetary ball mill Fritsch Pulverisette 4 model was used. The milling time was 15 min, and the milling atmosphere was air.

Solid State Reaction Synthesis of NiFe2O4 Nanoparticles

The planetary ball milling assisted solid-state reaction technique is considered to be a simple and effective synthesis method for NiFe2O4 and other interesting nanomaterials. View Show abstract

Synthesis and Characterization of NiFe2O4 Nanoparticles

NiFe2O4 nanoparticles were synthesized via solid‐state reaction. Yao, Xiao Zhang, Junfei Ma, Hao Lin, Synthesis and characterization of nickel ferrite nanoparticles via planetary ball milling assisted solid-state reaction, Ceramics Shahrzad Majdabadi Farahani, Modified combustion synthesis of Nano-NiFe2O4: Optimization using Taguchi

Mechanochemical synthesis of TiO2/NiFe2O4 magnetic

Mar 01, 2015 Composite magnetic catalysts prepared by ball milling were reported to outperform those prepared by conventional wet-chemical methods,. Here we present the mechanochemical synthesis of TiO 2 /NiFe 2 O 4 magnetic catalysts for application in continuous flow reactors under an RF field. Using this method, both the magnetic and catalytic

Synthesis of SnFe2O4 Nanomaterials Via High Energy Ball

JMEPEG (2011) 20:1157–1162 ÓASM International DOI: 10.1007/s11665-010-9632-2 1059-9495/$19.00 Synthesis of SnFe2O4 Nanomaterials Via High Energy Ball Milling of SnO (Stannous) and a-Fe2O3 (Hematite) Solid Precursors Oswald N.C. Uwakweh, Rita Ma´s, Carolyn Morales, Pedro Vargas, Josue Silva, Angel Rosa, Neshma Lopez, Richard Perez Moyet, and Yenny Cardona (Submitted February

Synthesis, structural and magnetic characterization of

Synthesis, structural and magnetic characterisation of nanocrystalline nickel ferrite NiFe 2 O 4 obtained by reactive milling T.F. Marincaa,b, I. Chicinaşa, O. Isnardb, V. Popc, F. Popaa aMaterials Sciences and Technology Department, Technical University of Cluj-Napoca, 103- 105 Muncii Avenue, 400641 Cluj-Napoca, Romania

Characterization of Nanostructured Spinel NiFe2O4 Obtained

Mechanochemical synthesis was performed in air atmosphere in a planetary ball mill (Fritsch Pulverisette 5) for 25 h. Milling conditions were: hardened-steel vial of 500 cm3 volume, filled with 40 hardened steel balls with a diameter of 13.4 mm, ball-to-powder weight ration

One-Step Ball-Milling Preparation of Highly Photocatalytic

We prepared CoFe2O4–RGO (RGO: reduced graphene oxide) composites by ball-milling without using toxic chemical reagents and high-temperature heat treatment. The exfoliation and reduction of graphite oxide and anchoring of CoFe2O4 nanoparticles on graphene sheets were accomplished in one step. The microstructure of the heterophotocatalyst was characterized by X-ray diffraction, Fourier

Synthesis, Structural and Magnetic Characterization of

Several synthesis methods have been used to prepare nano particles such as sol-gel auto-combustion method [17][18][19], co-precipitation [20], hydrothermal method [21,22], high energy ball milling

Facile Ball-Milling Synthesis of CuO/Biochar

Whereas the ball-milling time (Figure 1a) and agate ball-to-CuO mass ratio (Figure 1b) had little effect on RR120 adsorption onto CuO, the milling speed (Figure 1c) showed greater influences. The highest RR120 adsorption capacities under different ball-milling conditions were 65.38, 66.54, and 63.56 mg g−1at a milling time of 9 h,

Synthesis of the Nanocrystalline/Nanosized NiFe2O4 Powder

The polycrystalline nickel ferrite NiFe2O4 has been obtained by ceramic route starting from a stoichiometric mixture of oxides (NiO and α-Fe2O3 powders). The obtained NiFe2O4 was subjected to high energy ball milling. The formation of NiFe2O4 by ceramic method and also the evolution of the powder during milling were studied by X-ray diffraction.

Synthesis of SnFe2O4 Nanomaterials Via High Energy Ball

JMEPEG (2011) 20:1157–1162 ÓASM International DOI: 10.1007/s11665-010-9632-2 1059-9495/$19.00 Synthesis of SnFe2O4 Nanomaterials Via High Energy Ball Milling of SnO (Stannous) and a-Fe2O3 (Hematite) Solid Precursors Oswald N.C. Uwakweh, Rita Ma´s, Carolyn Morales, Pedro Vargas, Josue Silva, Angel Rosa, Neshma Lopez, Richard Perez Moyet, and Yenny Cardona (Submitted February

Synthesis of NiFe 2 O 4 nanoparticles by a low temperature

Nanocrystalline NiFe2O4 particles with mean size of about 20 nm were directly synthesized by a novel microwave-assisted ball-milling approach, using basic nickel carbonate and iron powders as the raw materials. The results showed that an intermediate product Fe2Ni2(OH)8CO3·2H2O was formed by milling NiCO3·2Ni(OH)2·4H2O and Fe powders with microwave assistance, then this intermediate

Synthesis, structural and magnetic characterization of

Synthesis, structural and magnetic characterisation of nanocrystalline nickel ferrite NiFe 2 O 4 obtained by reactive milling T.F. Marincaa,b, I. Chicinaşa, O. Isnardb, V. Popc, F. Popaa aMaterials Sciences and Technology Department, Technical University of Cluj-Napoca, 103- 105 Muncii Avenue, 400641 Cluj-Napoca, Romania

Characterization of Nanostructured Spinel NiFe2O4

Mechanochemical synthesis was performed in air atmosphere in a planetary ball mill (Fritsch Pulverisette 5) for 25 h. Milling conditions were: hardened-steel vial of 500 cm3 volume, filled with 40 hardened steel balls with a diameter of 13.4 mm, ball-to-powder weight ration

Superior destabilization effeed nickel ferrite NiFe2O4

by high energy ball milling in this work. 2. Experimental details LiBH 4 ($95% pure), purchased from Acros Organics, and NiFe 2O 4 ($99.99% pure, 20 nm), synthesized by the auto-combustion process (details of the synthesis process were giveninthepreviousreport 24),wereutilizeddirectlywithoutany further puri cation. LiBH 4 doped with di fferent

One-Step Ball-Milling Preparation of Highly Photocatalytic

We prepared CoFe2O4–RGO (RGO: reduced graphene oxide) composites by ball-milling without using toxic chemical reagents and high-temperature heat treatment. The exfoliation and reduction of graphite oxide and anchoring of CoFe2O4 nanoparticles on graphene sheets were accomplished in one step. The microstructure of the heterophotocatalyst was characterized by X-ray diffraction, Fourier

One step ball-milling synthesis of LiFePO 4 nanoparticles

A one-step synthetic method was used to synthesize Olivline LiFePO4 powders by direct ball milling the stoichiometric mixture of Fe, Li3PO4, and FePO4 powders. XRD and TEM measurements revealed that the as-prepared LiFePO4 powder have a homogeneous Olivine structure and a uniform size distribution of ca. 50 nm. Based on this material, a LiFePO4/C composite was prepared and used for the cathode

Nano Ball Milling SlideShare

Dec 15, 2012 Nano Ball Milling 1. BALL MILLING METHOD By Aravind N. B 2. Nano materials can be defined as those materials which have structured components with size less than 100nm at least in one dimension. Nanotechnology is an advanced technology, which deals with the synthesis of nano-particles, processing of the nano materials and their applications.

Synthesis of Metal Organic Frameworks by Ball-Milling

At present, the synthesis methods of MOFs mainly include the hydrothermal method, microwave assisted method, ultrasonic assisted method, electrochemical method, and ball milling (BM) method [12,13,14,15].Ball milling is a mechanical technique widely used

The Synthesis and Characterization of Nickel and Cobalt

Dec 01, 2017 The single-phase NiFe2O4 and CoFe2O4 ferrites were synthesized by four methods: the high-frequency plasma chemical synthesis (“plasma”), sol-gel self-propagating combustion method (“combust”), and co-precipitation technology, combined with the hydrothermal synthesis (“hydrotherm”) or spray-drying (“spray”). The specific surface area (SSA), crystallite size, and magnetic

Ball Milling method for synthesis of nanomaterials

Jun 15, 2012 Steps in ball milling method; 1. As the name suggests, the ball milling method consists of balls and a mill chamber. Therefore over all a ball mill contains a stainless steel container and many small iron, hardened steel, silicon carbide, or tungsten carbide balls are made to rotate inside a mill

Ball milling: an efficient and green approach for

However, the utilization of ball milling in asymmetric organic synthesis has not been adequately investigated. Thus, the aim of this review is to highlight the attractive features of the applications of mechanochemistry via ball milling in asymmetric organic syntheses in order to attract the attention of a wider section of the synthesis community.

Ball milling: a green technology for the preparation and

Ball milling: a green technology for the preparation and functionalisation of nanocellulose derivatives. Carmen C. Piras a, Susana Fernández-Prieto b and Wim M. De Borggraeve * a a Molecular Design and Synthesis, Department of Chemistry, KU Leuven University of Leuven, Celestijnenlaan 200F, Box 2404, B-3001 Leuven, Belgium.

Superior destabilization effeed nickel ferrite NiFe2O4

by high energy ball milling in this work. 2. Experimental details LiBH 4 ($95% pure), purchased from Acros Organics, and NiFe 2O 4 ($99.99% pure, 20 nm), synthesized by the auto-combustion process (details of the synthesis process were giveninthepreviousreport 24),wereutilizeddirectlywithoutany further puri cation. LiBH 4 doped with di fferent

The Synthesis and Characterization of Nickel and Cobalt

Dec 01, 2017 The single-phase NiFe2O4 and CoFe2O4 ferrites were synthesized by four methods: the high-frequency plasma chemical synthesis (“plasma”), sol-gel self-propagating combustion method (“combust”), and co-precipitation technology, combined with the hydrothermal synthesis (“hydrotherm”) or spray-drying (“spray”). The specific surface area (SSA), crystallite size, and magnetic

Parametric optimization of NiFe2O4 nanoparticles

The XRD results suggest that NiFe2O4 with a crystallite size of about 12 nm is present in 30 h activated specimens. Furthermore, based on the results of the Taguchi approach the greatest effect on particle size (42.10 %) is found to be due to rotation speed followed by milling time (37.08 %) while ball to powder weight ratio exhibits the least

Ball Milling University of Massachusetts Boston

Ball Milling An efficient and ecologically friendly synthetic approach ‐‐‐ Jackie Ding . Ball milling solvent free approach Application in organic synthesis Conclusion Content 2

Formation of physically stable amorphous drugs by milling

Each of four drugs (ketoprofen, indomethacin, naproxen, and progesterone) was milled with Neusilin (amorphous magnesium aluminosilicate) to effect conversion from crystalline to amorphous states, and the physical stability of the resultant drugs was investigated. Ball milling the drugs alone for 48

One step ball-milling synthesis of LiFePO 4 nanoparticles

A one-step synthetic method was used to synthesize Olivline LiFePO4 powders by direct ball milling the stoichiometric mixture of Fe, Li3PO4, and FePO4 powders. XRD and TEM measurements revealed that the as-prepared LiFePO4 powder have a homogeneous Olivine structure and a uniform size distribution of ca. 50 nm. Based on this material, a LiFePO4/C composite was prepared and used for the cathode

Ball milling: a green technology for the preparation and

Ball milling: a green technology for the preparation and functionalisation of nanocellulose derivatives. Carmen C. Piras a, Susana Fernández-Prieto b and Wim M. De Borggraeve * a a Molecular Design and Synthesis, Department of Chemistry, KU Leuven University of Leuven, Celestijnenlaan 200F, Box 2404, B-3001 Leuven, Belgium.

Synthesis of Metal Organic Frameworks by Ball-Milling

At present, the synthesis methods of MOFs mainly include the hydrothermal method, microwave assisted method, ultrasonic assisted method, electrochemical method, and ball milling (BM) method [12,13,14,15].Ball milling is a mechanical technique widely used

Ball Milling Method YouTube

Apr 01, 2016 Watch this video to learn about Ball Milling MethodTo learn more register at learnengg/

Ball Milling method for synthesis of nanomaterials

Jun 15, 2012 Steps in ball milling method; 1. As the name suggests, the ball milling method consists of balls and a mill chamber. Therefore over all a ball mill contains a stainless steel container and many small iron, hardened steel, silicon carbide, or tungsten carbide balls are made to rotate inside a mill

Activation of zero-valent iron through ball-milling

Apr 15, 2019 1. J Hazard Mater. 2019 Apr 15;368:698-704. doi: 10.1016/j.jhazmat.2019.01.105. Epub 2019 Jan 31. Activation of zero-valent iron through ball-milling synthesis of hybrid Fe0/Fe3O4/FeCl2 microcomposite for enhanced nitrobenzene reduction.

Ball milling: an efficient and green approach for

However, the utilization of ball milling in asymmetric organic synthesis has not been adequately investigated. Thus, the aim of this review is to highlight the attractive features of the applications of mechanochemistry via ball milling in asymmetric organic syntheses in order to attract the attention of a wider section of the synthesis community.

“Ball Milling Towards Green Synthesis: Applications

The aim of this book “Ball Milling towards Green Synthesis” is to highlight the importance of ball milling as a potential route to produce organic materials. The book was published by the Royal Society of Chemistry and edited by Brindaban Ranu and Achim Stolle. In

Synthesis, structural and magnetic characterization of

International audienceNanocrystalline nickel ferrite (NiFe2O4) has been synthesized from a stoichiometric mixture of oxides NiO and alpha-Fe2O3 in a high energy planetary mill. An annealing at 350 degrees C, after milling, was used to improve the solid state reaction.