Endcapping Treatment of Inner Surfaces of a Hexagonal Mesoporous Silica

Weiyi Lu Department of Structural Engineering, University of California, San Diego, La Jolla, CA, 92093-0085, USA

Aijie Han Department of Chemistry, University of Texas, Pan American, Edinburg, TX, 78539, USA

Taewan Kim Program of Materials Science & Engineering, University of California, San Diego, La Jolla, CA, 92093, USA

Brian J. Chow Department of Structural Engineering, University of California, San Diego, La Jolla, CA, 92093-0085, USA

Yu Qiao Department of Structural Engineering, University of California, San Diego, La Jolla, CA, 92093-0085, USACorrespondence[email protected]

Abstract

The inner surfaces of a hexagonal mesoporous silica (HMS) are treated by chlorotrimethylsilane, either directly or through vapor or liquid endcapping. The directly treated inner surfaces have the highest effective interfacial tension, and the liquid endcapping treated surfaces have the largest accessible nanopore volume. The difference in the treatment results may be attributed to the distinct surface structures.

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Acknowledgement

This work was supported by the National Science Foundation under Grant No. ECCS-1028010.

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Endcapping Treatment of Inner Surfaces of a Hexagonal Mesoporous Silica

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Endcapping Treatment of Inner Surfaces of a Hexagonal Mesoporous Silica

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