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718475

Sigma-Aldrich

氧化铝

nanopowder, 13 nm primary particle size (TEM), 99.8% trace metals basis

同義詞:

Aeroxide® Alu C, 氧化铝

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About This Item

線性公式:
Al2O3
CAS號碼:
1344-28-1
分子量：:
101.96
EC號碼:
215-691-6
MDL號碼:
MFCD00003424
分類程式碼代碼:
12352303
eCl@ss:
38120402
PubChem物質ID:
329763581
NACRES:
NA.23

品質等級

100

化驗

99.8% trace metals basis

形狀

nanopowder

表面積

85-115 m2/g , BET

初級粒徑

13 nm (TEM)

mp

2040 °C (lit.)

SMILES 字串

O=[Al]O[Al]=O

InChI

1S/2Al.3O

InChI 密鑰

TWNQGVIAIRXVLR-UHFFFAOYSA-N

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相關類別

一般說明

氧化铝纳米颗粒（AINPs）是多孔，刚玉结构的纳米材料。它们拥有高表面积、机械强度和良好的光学性能。此外，它们在恶劣条件下，如磨损环境和高温下，具有优异的化学稳定性。易于表面改性和生物惰性使它们适用于生物医学应用。这些纳米材料可以通过经济、简单的方法制备。

應用

铝纳米颗粒可用于制备：
  • 水基纳米流体，这种纳米流体被用于发动机冷却、热交换和核冷却系统。氧化石墨烯、铝纳米流体，其中添加铝纳米颗粒改善了氧化石墨烯的物理结构，降低复合材料的粘度。
  • 聚硅氧烷-氧化铝复合材料，可用于作为发光二极管的弹性导热垫片。
它还可被用作添加剂。改善聚氯乙烯的机械性能。Al2O3 纳米颗粒在聚合物基体中作为惰性固相，限制了高分子链的移动。因此提升了玻璃化温度，并降低了弹性模量。

特點和優勢

  • 在严苛的非生物环境中性质稳定。
  • 它们可以通过已有的合成方法轻松制备。
  • 它表面积很大，可以与化学和生物分子结合
  • 它们表面改性方案非常直观。
  • 它们很容易与生物界面相互作用。

儲存類別代碼

13 - Non Combustible Solids

水污染物質分類（WGK）

nwg

閃點（°F）

Not applicable

閃點（°C）

Not applicable

分析證明 (COA)

輸入產品批次/批號來搜索 分析證明 (COA)。在產品’s標籤上找到批次和批號，寫有 ‘Lot’或‘Batch’.。

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Laura M Corredor et al.
Nanomaterials (Basel, Switzerland), 9(1) (2019-01-16)
Recent studies revealed higher polymer flooding performance upon adding metal oxide nanoparticles (NPs) to acrylamide-based polymers during heavy oil recovery. The current study considers the effect of TiO₂, Al₂O₃, in-situ prepared Fe(OH)₃ and surface-modified SiO₂ NPs on the performance of
Shuo Yang et al.
Sensors (Basel, Switzerland), 19(14) (2019-07-25)
Readily available temperature sensing in boilers is necessary to improve efficiencies, minimize downtime, and reduce toxic emissions for a power plant. The current techniques are typically deployed as a single-point measurement and are primarily used for detection and prevention of
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
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