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Indexed by:期刊论文

Date of Publication:2012-04-01

Journal:MICROPOROUS AND MESOPOROUS MATERIALS

Included Journals:SCIE、EI、Scopus

Volume:152

Page Number:9-15

ISSN No.:1387-1811

Key Words:Mesoporous nanoparticles; Hydrothermal synthesis; Formaldehyde; Suppressed growth

Abstract:An effective one-pot hydrothermal synthesis method based on suppressed growth strategy was invented to produce mesoporous silica nanoparticles (MSNs). In a TEOS-CTAB-NH4OH-water-formaldehyde system, formaldehyde was used as suppressant which formed a polymer shell on the outer surface of the MSNs to control the particle size to about 30 nm. A nanoporous carbon framework was obtained when precursor was carbonized in N-2 followed by a HF leaching of the silica. The pore size of the carbon was about 30 nm. The mechanism for the synthesis process was described. (C) 2011 Elsevier Inc. All rights reserved.