The preparation and characterization of ordered mesoporous Cr2 O3 -CeO2 mixed oxidation
SI Li-min
LIU Jing-ting
XIA Yun-sheng
BAO De-cai
Abstract：Highly surface area ordered mesoporous chromium oxide and cerium oxide composite ( meso-Cr-Ce) was synthesized via a vacuum assisted impregnation method with three dimensionally ordered mesoporous silica as hard template, chromium nitrate and cerium nitrate as metal sources.The physicochemical properties of meso-Cr-Ce were characterized by XRD, TEM, N2 adsorption-desorption and ultraviolet visible diffuse re-flectance spectroscopy.The results show that meso-Cr-Ce possessed a typical mesoporous structure with highly crystalline wall.Its surface area was up to 160 m2/g and the average pore size was ca.7.2 nm.The meso-Cr-Ce sample exhibits excellent UV and visible light responsive property, which would be useful in optical and catalytic applications.
Keywords：mesoporous materialmixed metal oxidationhard-templating method
Publication Date：2014-01-01
Online Publishing Date：2025-08-15(First online date of this platform, not the publication date of the document)
Pages：6( 379-384 )