Soft-templating synthesis and properties of mesoporous alumina-titania

被引：46

作者：

Morris, Stacy M. ^{[1
]}

Horton, Joe A. ^{[2
]}

Jaroniec, Mietek ^{[1
]}

机构：

[1] Kent State Univ, Dept Chem, Kent, OH 44242 USA

[2] Oak Ridge Natl Lab, Ctr Nanophase Mat Sci, Oak Ridge, TN 37831 USA

来源：

MICROPOROUS AND MESOPOROUS MATERIALS | 2010年 / 128卷 / 1-3期

关键词：

Alumina; Titania; Alumina-titania; Ordered mesoporous oxide; Soft-templating; SOL-GEL SYNTHESIS; MESOSTRUCTURED FORMS; SURFACE-AREA; PORE-SIZE; OXIDES; TIO2; TEMPERATURE; DIOXIDE; AL2O3; PURE;

D O I：

10.1016/j.micromeso.2009.08.018

中图分类号：

O69 [应用化学];

学科分类号：

081704 ;

摘要：

Mesoporous alumina-titania materials, having various molar compositions of aluminum and titanium, were synthesized via cooperative self-assembly of the corresponding metal alkoxides and Pluronic (R) P123 triblock copolymer (soft template) in ethanolic solution under acidic conditions. The resulting mixed metal oxides possess ordered mesopores at low to equal molar compositions of titanium in relation to aluminum (up to 50%) and worm-like mesostructures at higher molar compositions of titanium (50-75%). In addition, these mesoporous oxides exhibit high BET surface areas (up to 438 m(2)/g), large pore widths (from 7.37 to 18.55 nm) and pore volumes (from 0.16 to 0.64 cm(3)/g), narrow pore size distributions, crystalline pore walls and high thermal stability. (C) 2009 Elsevier Inc. All rights reserved.

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页码：180 / 186

页数：7

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