Two-dimensional crystals of mesoporous silica SBA-15 nanosheets with perpendicular and open channels
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...
| Main Authors: | , , |
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| Format: | Article |
| Language: | English |
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AIP Publishing LLC
2014-11-01
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| Series: | APL Materials |
| Online Access: | http://dx.doi.org/10.1063/1.4897203 |
| _version_ | 1818759625798844416 |
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| author | Yi-Qi Yeh Chih-Yuan Tang Chung-Yuan Mou |
| author_facet | Yi-Qi Yeh Chih-Yuan Tang Chung-Yuan Mou |
| author_sort | Yi-Qi Yeh |
| collection | DOAJ |
| description | 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. |
| first_indexed | 2024-12-18T06:45:42Z |
| format | Article |
| id | doaj.art-8df258e430ed4edf966645c7997812be |
| institution | Directory Open Access Journal |
| issn | 2166-532X |
| language | English |
| last_indexed | 2024-12-18T06:45:42Z |
| publishDate | 2014-11-01 |
| publisher | AIP Publishing LLC |
| record_format | Article |
| series | APL Materials |
| spelling | doaj.art-8df258e430ed4edf966645c7997812be2022-12-21T21:17:30ZengAIP Publishing LLCAPL Materials2166-532X2014-11-01211113303113303-710.1063/1.4897203003493APMTwo-dimensional crystals of mesoporous silica SBA-15 nanosheets with perpendicular and open channelsYi-Qi Yeh0Chih-Yuan Tang1Chung-Yuan Mou2National Synchrotron Radiation Research Center, Hsinchu 30077, TaiwanInstrumentation Center, National Taiwan University, Taipei 106, TaiwanDepartment of Chemistry, National Taiwan University, Taipei 10617, TaiwanA 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.http://dx.doi.org/10.1063/1.4897203 |
| spellingShingle | Yi-Qi Yeh Chih-Yuan Tang Chung-Yuan Mou Two-dimensional crystals of mesoporous silica SBA-15 nanosheets with perpendicular and open channels APL Materials |
| title | Two-dimensional crystals of mesoporous silica SBA-15 nanosheets with perpendicular and open channels |
| title_full | Two-dimensional crystals of mesoporous silica SBA-15 nanosheets with perpendicular and open channels |
| title_fullStr | Two-dimensional crystals of mesoporous silica SBA-15 nanosheets with perpendicular and open channels |
| title_full_unstemmed | Two-dimensional crystals of mesoporous silica SBA-15 nanosheets with perpendicular and open channels |
| title_short | Two-dimensional crystals of mesoporous silica SBA-15 nanosheets with perpendicular and open channels |
| title_sort | two dimensional crystals of mesoporous silica sba 15 nanosheets with perpendicular and open channels |
| url | http://dx.doi.org/10.1063/1.4897203 |
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