Woignier Thierry auteur aut IRD Alaoui A. H. auteur aut IRD Primera J. auteur aut IRD Phalippou J. auteur aut IRD text journalArticle eng Porous glasses can be Synthesised by different methods: in the conventional ways such as foaming (foamed glasses) or phase separation and leaching process leading to the Vycor glass, and also by the sol-get method (sintered xerogel and aerogel), or by geological alteration process of volcanic materials (allophanes). In this paper we will discuss different features of these porous materials related to their properties, and their possible applications such as biomaterials (foamed glasses), host matrices for nuclear wastes (Vycor and sintered gels), precursors for special glasses (xerogels and aerogels), and mitigation of the greenhouse gases by carbon sequestration (allophanes). specialized porous glasses sol gel process allophanes 020 52 3 Suppl. 190-194 2006 0035-001X https://www.documentation.ird.fr/hor/PAR00001502 0035-001X https://www.documentation.ird.fr/hor/PAR00001502 IRD - Base Horizon / Pleins textes 2007-04-27 2017-08-23 PAR00001502 fre