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介孔结构的二氧化硅

MCM-41 type (hexagonal)

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别名:
二氧化硅
线性分子式:
SiO2
CAS号:
分子量:
60.08
EC 号:
MDL编号:
PubChem化学物质编号:
NACRES:
NA.23

质量水平

形式

powder

表面积

~1000 m2/g , BET

单元格尺寸

4.5-4.8 nm

孔径

0.98 cm3/g pore volume
2.1-2.7 nm pore size

bp

2230 °C (lit.)

mp

>1600 °C (lit.)

堆积密度

0.34 g/mL

应用

battery manufacturing

SMILES字符串

O=[Si]=O

InChI

1S/O2Si/c1-3-2

InChI key

VYPSYNLAJGMNEJ-UHFFFAOYSA-N

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一般描述

介孔结构二氧化硅(MCM-41)是低密度有序介孔硅酸盐体系的一部分,该体系具有2D六方相,其是在季铵卤化表面活性剂存在下进行制备。它的孔有序且大,直径在1.5-10 nm之间,比表面积为1500 m2/g。

应用

MCM-41可作为基底材料,与铂配合物组装形成发光氧传感材料。它也可以用作捕获CO2的吸附剂。表面官能化的MCM-41可用作双酚A合成中的催化剂。

储存分类代码

13 - Non Combustible Solids

WGK

nwg

闪点(°F)

Not applicable

闪点(°C)

Not applicable


分析证书(COA)

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示例

T1503
货号
-
25G
包装规格/数量

其它示例:

705578-5MG-PW

PL860-CGA/SHF-1EA

MMYOMAG-74K-13

1000309185

输入内容 1.000309185)

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  1. How does the storage temperature relate to shipping conditions?

    The storage conditions that a Sigma-Aldrich catalog and label recommend for products are deliberately conservative. For many products, long-term storage at low temperatures will increase the time during which they are expected to remain in specification and therefore are labeled accordingly. Where short-term storage, shipping time frame, or exposure to conditions other than those recommended for long-term storage will not affect product quality, Sigma-Aldrich will ship at ambient temperature. The products sensitive to short-term exposure to conditions other than their recommended long-term storage are shipped on wet or dry ice. Ambient temperature shipping helps to control shipping costs for our customers. At any time, our customers can request wet- or dry-ice shipment, but the special handling is at customer expense if our product history indicates that the product is stable for regular shipment. See Shipping and Storage for more information.

  2. Which document(s) contains shelf-life or expiration date information for a given product?

    If available for a given product, the recommended re-test date or the expiration date can be found on the Certificate of Analysis.

  3. How do I get lot-specific information or a Certificate of Analysis?

    The lot specific COA document can be found by entering the lot number above under the "Documents" section.

  4. How do I find price and availability?

    There are several ways to find pricing and availability for our products. Once you log onto our website, you will find the price and availability displayed on the product detail page. You can contact any of our Customer Sales and Service offices to receive a quote.  USA customers:  1-800-325-3010 or view local office numbers.

  5. What is the Department of Transportation shipping information for this product?

    Transportation information can be found in Section 14 of the product's (M)SDS.To access the shipping information for this material, use the link on the product detail page for the product. 

  6. Is the surface density of silanol groups of Product 643645, Silica, mesostructured MCM-41 type (hexagonal), known?

    For Product 643645, Silica, mesostructured MCM-41 type (hexagonal), between 10 and 15 % of the silicon centers are hydroxylated.

  7. My question is not addressed here, how can I contact Technical Service for assistance?

    Ask a Scientist here.

In situ investigations on cetyltrimethylammonium surfactant/silicate systems, precursors of organized mesoporous MCM-41-type siliceous materials
Frasch J, et al.
Langmuir, 16(23), 9049-9057 (2000)
Adsorption of CO2-containing gas mixtures over amine-bearing pore-expanded MCM-41 silica: application for gas purification
Belmabkhout Y, et al.
Industrial & Engineering Chemistry Research, 49(1), 359-365 (2009)
Oxygen sensing materials based on mesoporous silica MCM-41 and Pt (II)-porphyrin complexes
Zhang H, et al.
Journal of Materials Chemistry, 15(31), 3181-3186 (2005)
Chiral mesostructured silica nanofibers of MCM-41
Wang B, et al.
Angewandte Chemie (International ed. in English), 45(13), 2088-2090 (2006)
Effect of surface functionalization of MCM-41-type mesoporous silica nanoparticles on the endocytosis by human cancer cells
Slowing I, et al.
Journal of the American Chemical Society, 128(46), 14792-14793 (2006)

商品

介孔材料包括一系列高表面积多孔硅酸盐,可用于气体吸附、药物递送、诊断和催化。

Mesoporous Materials include a range of high surface area porous silicates with applications in gas adsorption, drug delivery, diagnostics and catalysis.

Mesoporous materials are formed by a self-assembly process from combined solutions of sol-gel precursors (e.g., metal alkoxides) and structure-directing amphiphiles, usually block-copolymers or surfactants.

Recent demand for electric and hybrid vehicles, coupled with a reduction in prices, has caused lithium-ion batteries (LIBs) to become an increasingly popular form of rechargeable battery technology.

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