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good thermal stability and low pore volume are related, the thick silica walls providing an effective scaffolding of the pores upon activation
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Influence of pH and nature of the anion on the synthesis of pure and iron-containing mesoporous silica

Luigi Pasquaa, Flaviano Testaa, Rosario Aiello, , a, Francesco Di Renzob and François Fajulab

a Dipartimento di Ingegneria Chimica e dei Materiali, Universit¨¤ degli Studi della Calabria, Via Pietro Bucci, I-87030 Rende (CS), Italy
b Laboratoire de Mat¨¦riaux Catalytiques et Catalyse en Chimie Organique, UMR 5618 CNRS, ENSCM, 8 rue de l'Ecole Normale, F-34296 Montpellier Cedex 5, France

Received 23 February 2000; accepted 18 September 2000 Available online 13 June 2001
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