Carbon aerogels prepared by autocondensation of flavonoid tannin

A. Szczurek (1, 2) , V. Fierro (1) , G. Medjahdi (1) , A. Celzard (1)

1 IJL - Institut Jean Lamour
2 UW - University of Warsaw

The 1st carbon aerogels were prepared from gelation of tannins (T) catalysed by silica (S). • Silica acted both as auto-condensation catalyst and as porogen. • Dissolution of silica nanoparticles formed in the aerogels further increased their porosity. • The influence of the S/T ratio and on the etching agent on the porosity was elucidated. • Higher porosity and surface area than other tannin-based carbon aerogels are reported.

Domaines: Matériaux; Polymères

A. Szczurek, V. Fierro, G. Medjahdi, A. Celzard. Carbon aerogels prepared by autocondensation of flavonoid tannin. Carbon Resources Conversion, 2019, 2 (1), pp.72-84. ⟨10.1016/j.crcon.2019.02.001⟩. ⟨hal-02357780⟩