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China Nano - Al2O3 Aluminum Oxide Nanopowder …

Nanoclay"Cloisite® additives consist of organically modified nanometer scale, layered magnesium aluminum silicate platelets.

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aluminium oxide nanoparticles synthesis by ball milling …

AB - Composite Al–Al2O3 and Al–AlN nanoparticles were synthesized via electric explosion of aluminum wires in an argon–oxygen gas mixture and in nitrogen. The parameters of electric explosion and gas medium affect the size and relative content of nitride and aluminum oxide in the nanoparticles. Processes of forming chemical compounds during aluminum oxidation at the contact surface between explosive products and gas and of nitrogen diffusions into the nanoparticles of the condensed phase are considered.

But from what I read aluminum nanoparticles can ..

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aluminium oxide nanoparticles synthesis by ball milling method ..

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N2 - Composite Al–Al2O3 and Al–AlN nanoparticles were synthesized via electric explosion of aluminum wires in an argon–oxygen gas mixture and in nitrogen. The parameters of electric explosion and gas medium affect the size and relative content of nitride and aluminum oxide in the nanoparticles. Processes of forming chemical compounds during aluminum oxidation at the contact surface between explosive products and gas and of nitrogen diffusions into the nanoparticles of the condensed phase are considered.

Removal of Aluminum from Water and Wastewater …

Fu Su Yen & et al, “- to -phase transformation subsystem induced by -AlOseeding in boehmite-derived nano-sized alumina powders,” vol. 249, pp. 283–293, 2003.

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  • aluminium oxide nanoparticles synthesis by ball milling method; ..

    Advanced Materials and Technologies: Self-Assembly of Gold Nanoparticle Arrays with Anodic Aluminum Oxide Template

  • Zinc Oxide—From Synthesis to Application: A Review - MDPI

    Zinc oxide can be called a multifunctional material thanks to its unique physical and chemical properties

  • Journal of Nanoscience and Nanotechnology

    DOI: 10.1021/nl1034573 - American Chemical Society

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Journal of Biomedical Nanotechnology

Composite Al–Al2O3 and Al–AlN nanoparticles were synthesized via electric explosion of aluminum wires in an argon–oxygen gas mixture and in nitrogen. The parameters of electric explosion and gas medium affect the size and relative content of nitride and aluminum oxide in the nanoparticles. Processes of forming chemical compounds during aluminum oxidation at the contact surface between explosive products and gas and of nitrogen diffusions into the nanoparticles of the condensed phase are considered.

Nanocomposites: synthesis, structure, properties and …

Hsing-I Hsiang & et al, “Synthesis of -Alumina Hexagonal Platelets Using a Mixture of Boehmite and Potassium Sulfate,” vol. 90 (12), pp. 4070–4072, 2007.

PDF Downloads : Oriental Journal of Chemistry

Crystalline -AlOplatelets were synthesized by combustion of aluminum nitrate and urea mixture in aqueous media. High purity of -AlOnanostructure obtained from combustion, illustrated in XRD and TG/DTA graph. TEM and SEM characterizations show platelet structure of product without requirement of annealing at high temperature.

The Hersam Research Group :: Home

TEM (HR-TEM), and selected area electron diffraction (SAED) patterns obtained using a JEM-2100 (JEOL, Tokyo, Japan) microscope. The SZ-100 nanoparticla series instruments (Horiba, Kyoto, Japan) used to study particle size and thermal gravimetric analysis and differential thermal analysis (TG/DTA) performed in air at heating rate of 30C/min, using a thermal analyzer model XSTAR6000 (Hitachi High-Tech Science Corporation, Tokyo).

XRD pattern of -AlOsynthesis by solution combustion method of aluminum nitrate and Urea in
20 ml distilled water.

SEM images of -AlOsample, indicates platelet morphology.

EDAX spectrum of -AlOsynthesized by solution combustion method.
Scanning Electron Microscopy (SEM) with Simultaneous EDAX was employed to study platelet morphology of product (Fig.2.) and EDAX spectrum confirms high purity of -AlO(Fig.3.) and reveals that particle is composed of Al and O elements. Au element observed is due to preparation process for SEM, because alumina is ceramic material.
Fig.4. and Fig.5. show the TEM micrographs of -AlO

powder obtained from the solution combustion of Aluminum nitrate (oxidizer) and Urea (fuel) in 20 ml aqueous medium and desiccated at 450C for 1 h. This shows that most crystallites exhibit hexagonal platelet morphology. The side lengths of the platelets were ~80 nm for 20 ml aqueous.
TEM micrograph of -Al2O3 nanoparticles shows hexagonal shape synthesized by SCS.

The Hersam Research Group :: Publications

A predictive model for nanoparticle nucleation has not yet been successfully achieved. Classical nucleation theory fails because the atomistic nature of the seed has to be considered. Indeed, geometrical structure as well as stoichiometry do not always match the bulk values. We present a fully microscopic approach based on a first-principle study of aluminum oxide clusters. We calculated stable structures of AlO and their associated thermodynamic properties. From these data, the chemical composition of a gas composed of aluminum and oxygen atoms can be calculated as a function of temperature, pressure, and aluminum to oxygen ratio. We demonstrate the accuracy of this approach in reproducing experimental results obtained with time-resolved spectroscopy of a laser-induced plasma from an Al2O3 target. We thus extended the calculation to lower temperatures, i.e., longer time scales, to propose a scenario of composition gas evolution leading to the first alumina seeds.

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