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551643

Sigma-Aldrich

Aluminum oxide

nanowires, diam. × L 2-6 nm × 200-400 nm

Synonym(s):

Alumina

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About This Item

Linear Formula:
Al2O3
CAS Number:
1344-28-1
Molecular Weight:
101.96
EC Number:
215-691-6
MDL number:
MFCD00003424
UNSPSC Code:
12352311
eCl@ss:
38120402
PubChem Substance ID:
24879232
NACRES:
NA.23

form

nanowires

diam. × L

2-6 nm × 200-400 nm

mp

2040 °C (lit.)

SMILES string

O=[Al]O[Al]=O

InChI

1S/2Al.3O

InChI key

TWNQGVIAIRXVLR-UHFFFAOYSA-N

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General description

Aspect ratio estimated to be >100 based on TEM.

Application

  • Self-Assembly of Ionic Superdiscs in Nanopores.: This research explores the self-assembly of ionic superdiscs in nanopores enhanced by aluminum oxide, offering a new avenue for creating highly ordered nanostructures useful in energy storage and conversion technologies (Li et al., 2024).
  • Improved Fog Collection on a Hybrid Surface with Acylated Cellulose Coating.: Demonstrates the application of aluminum oxide in developing hybrid surfaces for enhanced fog collection, a technique that could be adapted for moisture management in battery and energy systems to improve operational stability and efficiency (Zhan et al., 2024).
  • Alumina - Stabilized SEI and CEI in Potassium Metal Batteries.: Research highlights the role of aluminum oxide in stabilizing solid electrolyte interphase (SEI) and cathode-electrolyte interface (CEI) layers in potassium metal batteries, crucial for enhancing the longevity and performance of next-generation batteries (Liu et al., 2024).
  • 3D-Printed Carbon Nanoneedle Electrodes for Dopamine Detection in Drosophila.: Utilizes aluminum oxide in 3D-printed carbon nanoneedle electrodes, offering significant improvements in the sensitivity and specificity of neurochemical detection, applicable in battery technology for biosensors and medical devices (Shao et al., 2024).

Storage Class Code

13 - Non Combustible Solids

WGK

nwg

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable

Personal Protective Equipment

dust mask type N95 (US), Eyeshields, Gloves

Certificates of Analysis (COA)

Search for Certificates of Analysis (COA) by entering the products Lot/Batch Number. Lot and Batch Numbers can be found on a product’s label following the words ‘Lot’ or ‘Batch’.

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Aluminum oxide

G Siddiqi et al.
Dalton transactions (Cambridge, England : 2003), 44(32), 14349-14353 (2015-07-23)
A simple one-step and gram-scale synthesis of [Au5Mes5] from AuCl3 was developed, and this molecular precursor was used to generate Au nanoparticles on SiO2 and Al2O3. While [Au5Mes5] does not react with surface silanols and is only physisorbed, its incipient
Joohoon Kang et al.
ACS nano, 9(4), 3596-3604 (2015-03-19)
Solution dispersions of two-dimensional (2D) black phosphorus (BP)--often referred to as phosphorene--are achieved by solvent exfoliation. These pristine, electronic-grade BP dispersions are produced with anhydrous organic solvents in a sealed-tip ultrasonication system, which circumvents BP degradation that would otherwise occur
Chien-Chih Lin et al.
Nanoscale, 5(17), 8090-8097 (2013-07-25)
We demonstrated a promising route for enhancing temperature sensitivity, improving saturation voltage, and reducing power consumption of the MOS(p) tunneling temperature sensors by introducing ultrathin Al2O3 into the dielectric stacks. Detailed illustrations of the working mechanism and device concept are
Jaakko Akola et al.
Proceedings of the National Academy of Sciences of the United States of America, 110(25), 10129-10134 (2013-06-01)
Glass formation in the CaO-Al2O3 system represents an important phenomenon because it does not contain typical network-forming cations. We have produced structural models of CaO-Al2O3 glasses using combined density functional theory-reverse Monte Carlo simulations and obtained structures that reproduce experiments
Colin J Ingham et al.
Biotechnology advances, 30(5), 1089-1099 (2011-08-23)
Porous aluminum oxide (PAO) is a ceramic formed by an anodization process of pure aluminum that enables the controllable assembly of exceptionally dense and regular nanopores in a planar membrane. As a consequence, PAO has a high porosity, nanopores with
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