Two-dimensional crystals of mesoporous silica SBA-15 nanosheets with perpendicular and open channels

Yi Qi Yeh, Chih Yuan Tang, Chung Yuan Mou

研究成果: 雜誌貢獻文章同行評審

9 引文 斯高帕斯(Scopus)

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
2
發行號11
DOIs
出版狀態已發佈 - 11月 1 2014
對外發佈

ASJC Scopus subject areas

  • 材料科學(全部)
  • 工程 (全部)

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