Morphology Control, Growth Mechanism, and Enhanced Catalytic Activity of Mesoporous CeO₂ Microparticles

Abstract

Mesoporous CeO 2 with flowerlike and cottonlike hierarchical structures were prepared through a facile solvothermal strategy by using cerium glycolate as precursors. In the whole synthesis process, the solvothermal reaction time plays an important role in morphology control. Structure and composition information of the corresponding cerium glycolate were obtained and compared by using X-ray diffraction, Fourier-transform infrared spectroscopy, X-ray photoelectron spectroscopy, and thermogravimetric analysis. Oriented at-