摘要
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.
原文 | 英語 |
---|---|
文章編號 | 113303 |
期刊 | APL Materials |
卷 | 2 |
發行號 | 11 |
DOIs | |
出版狀態 | 已發佈 - 11月 1 2014 |
對外發佈 | 是 |
ASJC Scopus subject areas
- 材料科學(全部)
- 工程 (全部)