Preparation of hexagonal platy particles of nanoporous silica using hydrotalcite as morphology template

Naoki Shimura, Makoto Ogawa

研究成果: Article

12 引用 (Scopus)

抄録

Hexagonal platy composite particles with a hydrotalcite core and a nanoporous silica shell with a thickness of ca. 100 nm were synthesized by the reaction of a Mg-Al hydrotalcite with a homogeneous aqueous solution containing tetraethoxysilane, hexadecyltrimethylammonium chloride, ammonia and methanol at 3 °C. The calcination of the products at 500 °C in air led to the composite particle with a Mg/Al mixed oxide core and a nanoporous silica shell. Hexagonal platy particles of nanoporous silica with a pore diameter of 2.3 nm and BET surface area of 700 m2 (g of silica)-1 were obtained by removing the Mg/Al mixed oxide core.

元の言語English
ページ(範囲)311-316
ページ数6
ジャーナルJournal of Colloid and Interface Science
312
発行部数2
DOI
出版物ステータスPublished - 2007 8 15

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hydrotalcite
Silicon Dioxide
templates
Silica
silicon dioxide
preparation
mixed oxides
Oxides
composite materials
Composite materials
Ammonia
Calcination
roasting
Methanol
Chlorides
ammonia
methyl alcohol
chlorides
aqueous solutions
porosity

ASJC Scopus subject areas

  • Colloid and Surface Chemistry
  • Physical and Theoretical Chemistry
  • Surfaces and Interfaces

これを引用

Preparation of hexagonal platy particles of nanoporous silica using hydrotalcite as morphology template. / Shimura, Naoki; Ogawa, Makoto.

:: Journal of Colloid and Interface Science, 巻 312, 番号 2, 15.08.2007, p. 311-316.

研究成果: Article

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