SiO2 Aerogels

Alain C. Pierre (1) , Arnaud Rigacci (2)

1 IRCELYON - Institut de recherches sur la catalyse et l'environnement de Lyon
2 CEP/Sophia

This chapter focuses on one of the most studied aerogel materials, silica aerogels. It aims at presenting a brief overview of the elaboration steps (sol-gel synthesis, aging, and drying), the textural and chemical characteristics (aggregation features, porosity, and surface chemistry), the main physical properties (from thermal, mechanical, acoustical, and optical, to biological, medical, etc.), and a rather broad panel of related potential applications of these fascinating nanostructured materials. It cannot be considered as an exhaustive synopsis but must be used as a simple tool to initiate further bibliographic studies on silica aerogels.

Domaines: Energétique

Alain C. Pierre, Arnaud Rigacci. SiO2 Aerogels. Aegerter, Michel Andre; Leventis, Nicholas; Koebel, Matthias M. Aerogels Handbook, Springer Verlag, pp.21-45 - Part II, 2011, Advances in Sol-Gel Derived Materials and Technologies, 978-1-4419-7589-8. ⟨10.1007/978-1-4419-7589-8_2⟩. ⟨hal-00800463⟩