Hexagonal and cubic thermally stable mesoporous Tin(IV) phosphates with acidic and catalytic properties

Acidic pores: The first cubic mesoporous tin(IV) phosphate and its hexagonal form are reported and characterized by X-ray diffraction, transmission electron microscopy (see picture of the cubic domain), and Brunauer-Emmet-Teller techniques. Microcalorimetric experiments and preliminary catalytic tests indicate that these solids are very acidic and exhibit a good catalytic activity for the removal of NOx (deNOx).