Thermally stable mesoporous tetragonal zirconia through surfactant-controlled synthesis and Si-stabilization.

ABSTRACT: Thermally stable, highly mesoporous Si-stabilized ZrO₂ was prepared by sol-gel-synthesis. By utilizing the surfactant dodecylamine (DDA), large mesopores with a pore width of ∼9.4 nm are formed. Combined with an NH₃-treatment on the hydrogel, a high specific surface area of up to 225 m² g^-1 and pore volume up to 0.46 cm³ g^-1 are obtained after calcination at 973 K. The individual contributions of Si-addition, DDA surfactant and the NH₃-treatment on the resulting pore system were studied by inductively coupled plasma with optical emission spectrometry (ICP-OES), X-ray diffraction (XRD), N₂ sorption, and transmission electron microscopy (TEM). Electron tomography was applied to visualize and investigate t

SUBMITTER: Abel KL 

PROVIDER: S-EPMC9171504 | biostudies-literature | 2022 Jun

REPOSITORIES: biostudies-literature