Synthesis, Characterization and Magnetism of Nanosized Copper Ferrite

Lv, Wei; Luo, Zhong Kuang; Liao, Bo; Ren, Xiang; Chen, Hong; Zhang, Peixin; Liu, Jian Hong

doi:10.4028/www.scientific.net/kem.368-372.604

Cited by 3 publications

(1 citation statement)

References 12 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…[2,3] For the hydrolysis of RNA and phospholipids, cyclic phosphate esters are of biological significance. [4] In recent years [5][6][7][8][9][10][11] have synthesized a series of aluminates using the sonochemical method, but in the present work, [P(C 6 H 5 ) 3 H] + [AlCl 4 ] − nanoparticles was synthesized by a simple method with the starting materials P(C 6 H 5 ) 3 , HCl, AlCl 3 , and a surfactant trimercaptopropionic acid (MPA), respectively. In addition to the spectroscopic techniques such as 31 P-NMR, FT-IR, powder X-ray diffraction (XRD), and scanning electron microscopy (SEM) theoretical calculations were used for this compound by using B3LYP method with the 6-311G * basis set.…”

Section: Introductionmentioning

confidence: 99%

Preparation, Characterization, and Theoretical Study of Nanoparticles of Triphenylphosphonium Tetrachloroaluminate(III) [P(C₆H₅)₃H]⁺[AlCl₄]⁻

Ghammamy

2013

Synthesis and Reactivity in Inorganic, Metal-Organic, and Nano-

View full text Add to dashboard Cite

Triphenylphosphonium tetrachloroaluminate(III) [P(C 6 H 5 ) 3 H] + [AlCl 4 ] − , TPPTCA, nanoparticle was synthesized by using triphenylphosphonium chloride addition to AlCl 3 in the presence of surfactant. The product was characterized by spectroscopic and analytical methods such as 31 P-NMR, FT-IR, XRD, SEM, and CHN. Theoretical calculations were used for the structural optimization of this compound. The structure of compound has been calculated and optimized by the density functional theory (DFT) based method at B3LYP/6-311G levels of theory, using the Gaussian 03 package of programs. The comparison between theory and experiment is made. On the base of the application of scanning electron microscopy is showed about 54 nm particle sizes. INTRODUCTIONTransparent ceramics have recently acquired a high degree of interest and notoriety. Basic applications include lasers and cutting tools, transparent armor windows, night vision devices (NVD), and nose cones for heat seeking missiles. Currently available infrared (IR) transparent materials typically exhibit a trade-off between optical performance and mechanical strength. For example, sapphire (crystalline alumina) is very strong, but lacks full transparency throughout the 3-5 μm mid-IR range. Yttria is fully transparent from 3-5 μm, but lacks sufficient strength, hardness, and thermal shock resistance for highperformance aerospace applications. Not surprisingly, a combination of these two materials in the form of the yttria-alumina garnet (YAG) has proven to be one of the top performers in the field. It has been shown fairly recently that laser elements

show abstract

Section: Introductionmentioning

confidence: 99%

Preparation, Characterization, and Theoretical Study of Nanoparticles of Triphenylphosphonium Tetrachloroaluminate(III) [P(C₆H₅)₃H]⁺[AlCl₄]⁻

Ghammamy

2013

Synthesis and Reactivity in Inorganic, Metal-Organic, and Nano-

View full text Add to dashboard Cite

show abstract

Effect of processing conditions on sonochemical synthesis of nanosized copper aluminate powders

Luo

et al. 2010

Ultrasonics Sonochemistry

View full text Add to dashboard Cite

Nanosized copper aluminate (CuAl(2)O(4)) spinel particles have been prepared by a precursor approach with the aid of ultrasound radiation. Mono-phasic copper aluminate with a crystallite diameter of 17nm along the (311) plane was formed when the products were synthesized using Cu(NO(3))(2) x 6H(2)O and Al(NO(3))(3) x 9H(2)O as starting materials, with urea as a precipitation agent at a concentration of 9M. The reaction was carried out under ultrasound irradiation at 80 degrees C for 4h and a calcination temperature of 900 degrees C for 6h. The synthesized copper aluminate particles and the effect of different processing conditions such as the copper source, precipitation agents, sonochemical reaction time, calcination temperature and time were analyzed and characterized by the techniques of powder X-ray diffraction (XRD), scanning electron microscopy (SEM), transmission electron microscopy (TEM), atomic force microscopy (AFM) and Fourier transformation infrared spectroscopy (FT-IR).

show abstract

Sonochemical synthesis of cobalt aluminate nanoparticles under various preparation parameters

Qiu

Wang

et al. 2010

Ultrasonics Sonochemistry

View full text Add to dashboard Cite

Cobalt aluminate (CoAl(2)O(4)) nanoparticles were synthesized using a precursor method with the aid of ultrasound irradiation under various preparation parameters. The effects of the preparation parameters, such as the sonochemical reaction time and temperature, precipitation agents, calcination temperature and time on the formation of CoAl(2)O(4) were investigated. The precursor on heating yields nanosized CoAl(2)O(4) particles and both these nanoparticles and the precursor were characterized by means of X-ray diffraction (XRD), scanning electron microscopy (SEM), transmission electron microscopy (TEM) and atomic force microscopy (AFM). The use of ultrasound irradiation during the homogeneous precipitation of the precursor reduces the duration of the precipitation reaction. The mechanism of the formation of cobalt aluminate was investigated by means of Fourier transformation infrared spectroscopy (FT-IR) and EDX (energy dispersive X-ray). The thermal decomposition process and kinetics of the precursor of nanosized CoAl(2)O(4) were investigated by means of differential scanning calorimetry (DSC) and thermogravimetry (TG). The apparent activation energy (E) and the pre-exponential constant (A) were 304.26 kJ/mol and 6.441 x 10(14)s(-1), respectively. Specific surface area was investigated by means of Brunauer Emmett Teller (BET) surface area measurements.

show abstract

Synthesis, Characterization and Magnetism of Nanosized Copper Ferrite

Cited by 3 publications

References 12 publications

Preparation, Characterization, and Theoretical Study of Nanoparticles of Triphenylphosphonium Tetrachloroaluminate(III) [P(C₆H₅)₃H]⁺[AlCl₄]⁻

Preparation, Characterization, and Theoretical Study of Nanoparticles of Triphenylphosphonium Tetrachloroaluminate(III) [P(C₆H₅)₃H]⁺[AlCl₄]⁻

Effect of processing conditions on sonochemical synthesis of nanosized copper aluminate powders

Sonochemical synthesis of cobalt aluminate nanoparticles under various preparation parameters

Contact Info

Product

Resources

About

Synthesis, Characterization and Magnetism of Nanosized Copper Ferrite

Cited by 3 publications

References 12 publications

Preparation, Characterization, and Theoretical Study of Nanoparticles of Triphenylphosphonium Tetrachloroaluminate(III) [P(C6H5)3H]+[AlCl4]−

Preparation, Characterization, and Theoretical Study of Nanoparticles of Triphenylphosphonium Tetrachloroaluminate(III) [P(C6H5)3H]+[AlCl4]−

Effect of processing conditions on sonochemical synthesis of nanosized copper aluminate powders

Sonochemical synthesis of cobalt aluminate nanoparticles under various preparation parameters

Contact Info

Product

Resources

About

Preparation, Characterization, and Theoretical Study of Nanoparticles of Triphenylphosphonium Tetrachloroaluminate(III) [P(C₆H₅)₃H]⁺[AlCl₄]⁻

Preparation, Characterization, and Theoretical Study of Nanoparticles of Triphenylphosphonium Tetrachloroaluminate(III) [P(C₆H₅)₃H]⁺[AlCl₄]⁻