期刊首页 优先出版 当期阅读 过刊浏览 作者中心 关于期刊 English

《化学科学与工程前沿(英文)》 >> 2008年 第2卷 第2期 doi: 10.1007/s11705-008-0036-x

Characterization and catalytic properties of mesoporous CuO/SBA-16 prepared by different impregnation methods

Key Laboratory of Functional Materials, Education Office of Heilongjiang Province, School of Chemistry and Materials Science, Heilongjiang University;

发布日期: 2008-06-05

下一篇 上一篇

摘要

CuO/SBA-16 catalysts were prepared by two different routes – the conventional impregnation method and the modified impregnation method with pH adjustment. These catalysts were characterized by X-ray diffraction (XRD), atomic absorption spectrometry (AAS), N physisorption and hydrogen temperature programmed reduction (H-TPR) measurements which reveal that the cubic cage-like () pore structure of the parent SBA-16 molecule sieves was well maintained throughout the synthesis. After introduction of Cu, a different CuO dispersion exists on these catalysts. The CuO/SBA-16 prepared by modified impregnation method has a single highly dispersed CuO which is considered as a highly efficient species for hydroxylation of phenol with HO. CuO/SBA-16 prepared by the conventional impregnation method shows the presence of bulk CuO species which is undesirable for this reaction.

相关研究