Vakıfahmetoğlu, Cekdar2021-05-152021-05-1520140272-88421873-3956https://doi.org/10.1016/j.ceramint.2014.04.028https://hdl.handle.net/20.500.12939/664Vakifahmetoglu, Cekdar/0000-0003-1222-4362Macrocellular calcium silicate (wollastonite) ceramic foams possessing similar to 86 vol% total porosity were produced from commercial calcium silicate hydrate (xonotlite) nano-size acicular crystals and poly-methyl-methacrylate microbeads (PMMA) (used as sacrificial pore formers). Open cell wollastonite foams had a bi-modal pore size distribution with major modes located similar to 100 nm due to interparticle porosity and similar to 100 mu m due to the sacrificial pore former. These macrocellular ceramics were then used as a scaffold for MFI type zeolite (silicalite-1) synthesis. Monolayer coffin shaped zeolite crystals (similar to 3 mu m size, measured from the c-axis and similar to 300 nm thickness) were observed with almost full coverage on the inner macro-cell walls. The specific surface area of the components increased from 9.6 m(2)/g to 108.2 m(2)/g via zeolite functionalization, leading to components possessing multiscale porosity. (C) 2014 Elsevier Ltd and Techna Group S.r.l. All rights reserved.eninfo:eu-repo/semantics/closedAccessZeoliteWollastoniteXonotliteFoamsHierarchical PorosityArticle10.1016/j.ceramint.2014.04.02840811925119322-s2.0-84903896621Q1WOS:000340328600056Q1