Investigation of the mechanism of the surfactant removal from a mesoporousalumina prepared in the presence of sodium dodecylsulfate

Authors
Sicard, L Llewellyn, PL Patarin, J Kolenda, F
Citation
L. Sicard et al., Investigation of the mechanism of the surfactant removal from a mesoporousalumina prepared in the presence of sodium dodecylsulfate, MICROP M M, 44, 2001, pp. 195-201
Citations number
13
Categorie Soggetti
Apllied Physucs/Condensed Matter/Materiales Science
Journal title
MICROPOROUS AND MESOPOROUS MATERIALS
ISSN journal
13871811 → ACNP
Volume
44
Year of publication
2001
Pages
195 - 201
Database
ISI
SICI code
1387-1811(200106)44:<195:IOTMOT>2.0.ZU;2-B
Abstract
The mechanism of the thermal decomposition of sodium dodecylsulfate occlude d within a mesostructured alumina is studied by sample controlled thermal a nalysis. The alkyl chain of the surfactant is completely removed below 473 K whereas the sulfate head group is lost in the region between 673 and 823 K. The pore volume and the equivalent surface area increase as the alkyl ch ain is removed and decrease on removal of the sulfate head group. These res ults suggest a strong interaction between the sulfate head group and the al umina framework. (C) 2001 Elsevier Science B.V. All rights reserved.