Synthesis of Ordered Sub-mesostructured Silica via Ionic Liquid as Structure-Directing Agents

Chem. J. Chinese Universities

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Synthesis of Ordered Sub-mesostructured Silica via Ionic Liquid as Structure-Directing Agents

LI Shang-Yu², WANG Run-Wei², WAN Li-Feng², QU Xue-Jian², ZHANG Tao², ZHANG Zong-Tao¹*, QIU Shi-Lun^1,2

1. Academy for Advanced Technology,
2. College of Chemistry, Jilin University, Changchun 130012, China

Received:2007-10-18 Revised:1900-01-01 Online:2008-03-10 Published:2008-03-10
Contact: ZHANG Zong-Tao

Abstract

Abstract: An ordered hexagonal pore sub-mesostructured silica was synthesized via ionic liquid 1-hexadecane-3-methylimidazolium bromide(C₁₆MIB) as structure-directing agents in acidic media. By combining the results of transmision electron microscopy, X-ray diffraction and surface area measurements, an elementary structure and characterization of the samples was obtained. This material performs two-dimensional hexagonal framework structure being analogous to MCM-41 and SBA-3 silicas in long range order, but the position of reflection peaks of X-ray diffraction shifts to a wide angle compared with those of MCM-41 and SBA-3. The sub-mesostructured silica has high BET specific surface area of 1360 m²/g, as well as small pore size of 1.8 nm.

Key words: Porous material, Ionic liquid, Sub-mesostructure silica, Sol-gel preparation, Microstructure

CLC Number:

O614

TrendMD:

LI Shang-Yu², WANG Run-Wei², WAN Li-Feng², QU Xue-Jian², ZHANG Tao², ZHANG Zong-Tao¹*, QIU Shi-Lun^1,2. Synthesis of Ordered Sub-mesostructured Silica via Ionic Liquid as Structure-Directing Agents[J]. Chem. J. Chinese Universities, doi: .

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Synthesis of Ordered Sub-mesostructured Silica via Ionic Liquid as Structure-Directing Agents

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