Synthesis of Al nanoparticles and Al/AlN composite nanoparticles by electrical explosion of aluminum wires in argon and nitrogen

2016 ◽  
Vol 295 ◽  
pp. 307-314 ◽  
Author(s):  
Marat I. Lerner ◽  
Elena A. Glazkova ◽  
Aleksandr S. Lozhkomoev ◽  
Natalia V. Svarovskaya ◽  
Olga V. Bakina ◽  
...  
Keyword(s):  
Electrical Explosion ◽  
Composite Nanoparticles ◽  
Al Nanoparticles

scholarly journals Design of antimicrobial composite nanoparticles ZnxMe(100-x)/O by electrical explosion of two wires in the oxygen-containing atmosphere

2019 ◽  
Vol 183 ◽  
pp. 108099 ◽  
Author(s):  
A.S. Lozhkomoev ◽  
S.O. Kazantsev ◽  
A.M. Kondranova ◽  
A.N. Fomenko ◽  
A.V. Pervikov ◽  
...  
Keyword(s):  
Electrical Explosion ◽  
Composite Nanoparticles

scholarly journals Characterization of Al-CNT Composite Nanoparticles Synthesized by Electrical Explosion of Wire in Acetone

2016 ◽  
Vol 35 (2) ◽  
pp. 47-53 ◽  
Author(s):  
A. Mosleh ◽  
H. Shahverdi ◽  
R. Poursalehi ◽  
◽  
◽  
...  
Keyword(s):  
Electrical Explosion ◽  
Composite Nanoparticles

scholarly journals Polymer Grafted Aluminum Nanoparticles for Percolative Composite Films with Enhanced Compatibility

Polymers ◽  
2019 ◽  
Vol 11 (4) ◽  
pp. 638
Author(s):  
Chenggong Yang ◽  
Chufarov Marian ◽  
Jie Liu ◽  
Qi Di ◽  
Mingze Xu ◽  
...  
Keyword(s):  
Energetic Materials ◽  
Colloidal Stability ◽  
Breakdown Strength ◽  
Composite Films ◽  
Electrical Explosion ◽  
Aluminum Nanoparticles ◽  
Al Nanoparticles ◽  
Electrical Explosion Of Wires ◽  
Highly Energetic Materials ◽  
Poor Stability

Aluminum nanoparticles hold promise for highly energetic materials and sustainable surface plasmonic materials. Most of the commercial Al nanoparticles are prepared via a high-throughput electrical explosion of wires method (up to 200 g h−1). However, the use of Al nanoparticles produced by an electrical explosion of wires is limited by their micrometer-sized aggregations and poor stability. Here, we use polystyrene with –COOH end-group to graft onto isolated Al nanoparticles and dramatically enhance their colloidal stability in various organic solvents. We further demonstrate that the polystyrene grafted Al nanoparticles can be doped into polystyrene films with high compatibility, leading to enhanced dielectric properties, such as higher dielectric constant, lower dielectric loss, and stronger breakdown strength. Moreover, the composite film can improve the moisture resistance of embedded Al nanoparticles.

scholarly journals Synthesis of W-Cu composite nanoparticles by the electrical explosion of two wires and their consolidation by spark plasma sintering

2020 ◽  
Vol 6 (12) ◽  
pp. 1265i9
Author(s):  
A V Pervikov ◽  
A S Lozhkomoev ◽  
E S Dvilis ◽  
M P Kalashnikov ◽  
V D Paygin ◽  
...  
Keyword(s):  
Spark Plasma Sintering ◽  
Electrical Explosion ◽  
Composite Nanoparticles ◽  
Plasma Sintering ◽  
Spark Plasma

Magnetic Properties of Fe3O4/CoFe2O4 Composite Nanoparticles with Core/Shell Architecture

2020 ◽  
Vol 65 (10) ◽  
pp. 904
Author(s):  
V. O. Zamorskyi ◽  
Ya. M. Lytvynenko ◽  
A. M. Pogorily ◽  
A. I. Tovstolytkin ◽  
S. O. Solopan ◽  
...  
Keyword(s):  
Magnetic Properties ◽  
Spinel Ferrite ◽  
Composite Nanoparticles ◽  
Core Shell ◽  
Cofe2o4 Nanoparticles ◽  
Core Diameter ◽  
The Core ◽  
Shell Particles ◽  
Interface Parameters ◽  
Shell Composite

Magnetic properties of the sets of Fe3O4(core)/CoFe2O4(shell) composite nanoparticles with a core diameter of about 6.3 nm and various shell thicknesses (0, 1.0, and 2.5 nm), as well as the mixtures of Fe3O4 and CoFe2O4 nanoparticles taken in the ratios corresponding to the core/shell material contents in the former case, have been studied. The results of magnetic research showed that the coating of magnetic nanoparticles with a shell gives rise to the appearance of two simultaneous effects: the modification of the core/shell interface parameters and the parameter change in both the nanoparticle’s core and shell themselves. As a result, the core/shell particles acquire new characteristics that are inherent neither to Fe3O4 nor to CoFe2O4. The obtained results open the way to the optimization and adaptation of the parameters of the core/shell spinel-ferrite-based nanoparticles for their application in various technological and biomedical domains.

Tuning the Localized Surface Plasmon Resonance of Al-Al2O3 Nanosphere Towards NIR Region by Gold Coating

2020 ◽  
Vol 12 ◽  
Author(s):  
Jyoti Katyal ◽  
Shivani Gautam
Keyword(s):  
Electric Field ◽  
Field Distribution ◽  
Dielectric Layer ◽  
Electric Field Distribution ◽  
Active Material ◽  
Visible Region ◽  
Field Enhancement ◽  
Localized Surface Plasmon ◽  
Sers Substrate ◽  
Al Nanoparticles

Background: A relatively narrow LSPR peak and a strong inter band transition ranging around 800 nm makes Al strongly plasmonic active material. Usually, Al nanoparticles are preferred for UV-plasmonic as the SPR of small size Al nanoparticles locates in deep UV-UV region of the optical spectrum. This paper focused on tuning the LSPR of Al nanostructure towards infrared region by coating Au layer. The proposed structure has Au as outer layer which prevent the further oxidation of Al nanostructure. Methods: The Finite Difference Time Domain (FDTD) and Plasmon Hybridization Theory has been used to evaluated the LSPR and field enhancement of single and dimer Al-Al2O3-Au MDM nanostructure. Results: It is observed that the resonance mode show dependence on the thickness of Al2O3 layer and also on the composition of nanostructure. The Au layered MDM nanostructure shows two peak of equal intensities simultaneously in UV and visible region tuned to NIR region. The extinction spectra and electric field distribution profiles of dimer nanoparticles are compared with monomer to reveal the extent of coupling. The dimer configuration shows higher field enhancement ~107 at 1049 nm. By optimizing the thickness of dielectric layer the MDM nanostructure can be used over UV-visible-NIR region. Conclusion: The LSPR peak shows dependence on the thickness of dielectric layer and also on the composition of nanostructure. It has been observed that optimization of size and thickness of dielectric layer can provide two peaks of equal intensities in UV and Visible region which is advantageous for many applications. The electric field distribution profiles of dimer MDM nanostructure enhanced the field by ~107 in visible and NIR region shows its potential towards SERS substrate. The results of this study will provide valuable information for the optimization of LSPR of Al-Al2O3-Au MDM nanostructure to have high field enhancement.

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