Large-pore periodic mesoporous silicas with crystalline channel walls and exceptional hydrothermal stability synthesized by a general high-pressure nanocasting route

被引：15

作者：

Mohanty, Paritosh ^{[1
]}

Kokoszka, Berenika ^{[1
]}

Liu, Cong ^{[1
]}

Weinberger, Manuel ^{[1
]}

Mandal, Manik ^{[1
]}

Stagno, Vincenzo ^{[2
]}

Fei, Yingwei ^{[2
]}

Landskron, Kai ^{[1
]}

机构：

[1] Lehigh Univ, Dept Chem, Bethlehem, PA 18015 USA

[2] Carnegie Inst Sci, Geophys Lab, Washington, DC 20015 USA

来源：

MICROPOROUS AND MESOPOROUS MATERIALS | 2012年 / 152卷

关键词：

Crystalline walls; Mesoporous silica; Hydrothermal stability; Nanocasting; Petroleum cracking; ZEOLITE;

D O I：

10.1016/j.micromeso.2011.11.031

中图分类号：

O69 [应用化学];

学科分类号：

081704 ;

摘要：

Periodic mesoporous quartz was synthesized by a generally applicable nanocasting method at industrially achievable pressure (2-4 GPa) and temperature (750 degrees C) conditions. The materials have fcc lattice of interconnected spherical mesopores with diameters of ca. 15-18 nm, BET surface areas of 234-238 m(2) g(-1), and pore volumes of 0.70-0.84 cm(3) g(-1). They show exceptional hydrothermal stability of at least 800 degrees C in pure steam which appears suitable for practical applications in petroleum cracking. (C) 2011 Elsevier Inc. All rights reserved.

引用

页码：214 / 218

页数：5

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