Two-dimensional crystals of mesoporous silica SBA-15 nanosheets with perpendicular and open channels
Journal
APL Materials
Journal Volume
2
Journal Issue
11
Date Issued
2014
Author(s)
Abstract
A preparation of mesoporous silica SBA-15 thin sheets with perpendicular nanochannels (SBA(⊥)) and open ends is reported here. At a synthesis condition of pH = 2 where the silica condensation is extremely slow, micron-sized single-crystal-like hexagonally faceted nanosheets (SBA(⊥)-pH2) with aspect ratio of 10-50 were formed. The nanosheets can attach to each other in sideway to extend the thin sheet. At pH = 5, multi-domain SBA(⊥)-pH5 nanosheets are formed, and stacking attachment of sheets is preferred. Vivid Moiré patterns are observed in large areas of stacked silica sheets, indicating excellent structure order.
Type
journal article
File(s)![Thumbnail Image]()
Loading...
Name
Two-dimensional crystals of mesoporous silica.pdf
Size
10.15 MB
Format
Adobe PDF
Checksum
(MD5):8b6e2805c6273ce1e7459c3d6bc01b6b