Direct Formation of Mesoporous Coesite Single Crystals from Periodic Mesoporous Silica at Extreme Pressure

Under an extreme pressure of 12 GPa, mesoporous coesite can be formed directly from periodic mesoporous silica without the aid of a template. The porous coesite particles obtained from SBA‐16 are single crystalline, with a pore size of about 4 nm and about 50 % porosity. The formation can be attribu...

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Published inAngewandte Chemie (International ed.) Vol. 49; no. 25; pp. 4301 - 4305
Main Authors Mohanty, Paritosh, Ortalan, Volkan, Browning, Nigel D, Arslan, Ilke, Fei, Yingwei, Landskron, Kai
Format Journal Article
LanguageEnglish
Published Weinheim Wiley-VCH Verlag 07.06.2010
WILEY-VCH Verlag
WILEY‐VCH Verlag
Subjects
coesite
high-pressure chemistry
mesoporous materials
mesoporous silica
silicon
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Summary:Under an extreme pressure of 12 GPa, mesoporous coesite can be formed directly from periodic mesoporous silica without the aid of a template. The porous coesite particles obtained from SBA‐16 are single crystalline, with a pore size of about 4 nm and about 50 % porosity. The formation can be attributed to the kinetically controlled crystallization of a nonporous elastically strained glasslike silica intermediate (see scheme).
Bibliography:http://dx.doi.org/10.1002/anie.201001114
ArticleID:ANIE201001114
Lehigh University
istex:C163A1C4026E7AE6B0804C39722F95CA3031D031
We thank Lehigh University and the Carnegie Institution of Washington for financial support.
Carnegie Institution of Washington
ark:/67375/WNG-VZ4TBVH4-K
ObjectType-Article-1
SourceType-Scholarly Journals-1
ObjectType-Feature-2
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ISSN:1433-7851
1521-3773
DOI:10.1002/anie.201001114