Abstract
2D double-quantum 1H- 1H NMR unambiguously shows that the "isolated" Si-OH surface silanols of dehydroxylated SBA-15 are converted upon treatment with ammonia into single silylamine surface site Si-NH 2. The "gem" di-silanols (Si(OH) 2) remain intact. Treatment using HMDS produces (Si(OSiMe 3) 2) but leaves Si-NH 2 untouched. The resulting surface is hydrophobic and stable. © The Royal Society of Chemistry 2012.
Original language | English (US) |
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Pages (from-to) | 3067 |
Journal | Chemical Communications |
Volume | 48 |
Issue number | 25 |
DOIs | |
State | Published - 2012 |
ASJC Scopus subject areas
- Materials Chemistry
- Surfaces, Coatings and Films
- Metals and Alloys
- Ceramics and Composites
- General Chemistry
- Catalysis
- Electronic, Optical and Magnetic Materials