D. J. Jones, J. Jiménez-Jiménez, A. Jiménez-López, P. Maireles-Torres, P. Olivera-Pastor, E. Rodriguez-Castellón and J. Rozière
Zirconium-doped mesoporous silicas of mole ratio Si/Zr from 50 to 5 are Lewis-acid catalysts, with a linear correlation between the zirconium content and total acidity.