Sign in
Back
A well-defined mesoporous amine silica surface via a selective treatment of SBA-15 with ammonia
Journal article   Peer reviewed

A well-defined mesoporous amine silica surface via a selective treatment of SBA-15 with ammonia

Anissa Bendjeriou-Sedjerari, Jeremie D.A. Pelletier, Edy Abou-Hamad, Lyndon Emsley and Jean-Marie Basset
Chemical communications (Cambridge, England), Vol.48(25), pp.3067-3069
01/01/2012
DOI: https://doi.org/10.1039/c2cc00143h
PMID: 22344191

Abstract

Analytical chemistry Chemical Sciences
2D double-quantum H-1-H-1 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-NH2. The "gem" di-silanols (= Si(OH)(2)) remain intact. Treatment using HMDS produces (= Si(OSiMe3)(2)) but leaves Si-NH2 untouched. The resulting surface is hydrophobic and stable.

Metrics

1 Record Views

Details