文献类型：期刊文献

中文题名：Synthesis of lathanum or La-B doped KIT-6 mesoporous materials and their application in the catalytic oxidation of styrene

英文题名：Synthesis of lathanum or La-B doped KIT-6 mesoporous materials and their application in the catalytic oxidation of styrene

作者：Zhan Wangcheng[1];Guo Yanglong[1];Wang Yanqin[1];Guo Yun[1];Lu Guanzhong[1]

机构：[1]E China Univ Sci & Technol, Res Inst Ind Catalysis, Key Lab Adv Mat, Shanghai 200237, Peoples R China

年份：2010

卷号：28

期号：3

起止页码：369

中文期刊名：Journal of Rare Earths

外文期刊名：JOURNAL OF RARE EARTHS

收录：CSTPCD;;EI(收录号：20102513018487);Scopus;WOS:【SCI-EXPANDED(收录号:WOS:000279401000010)】；CSCD:【CSCD2011_2012】；

基金：Project supported by the National Basic Research Program of China (2010CB732300), Education Commission of Shanghai Municipality (2008CG35), and Science and Technology Commission of Shanghai Municipality (09ZR1408200)

语种：英文

中文关键词：mesoporous materials; oxidation of styrene; benzaldehyde; styrene oxide; rare earths;

外文关键词：mesoporous materials; oxidation of styrene; benzaldehyde; styrene oxide; rare earths

摘要：La-doped and La-B-doped KIT-6 mesoporous materials were prepared by direct hydrothermal synthesis with pH-adjusting method and characterized by X-ray diffractometer(XRD),nitrogen sorption,FT-IR,UV-Vis,X-ray photoelectron spectroscopy(XPS) and ICP-AES.The catalytic performance for the oxidation of styrene by hydrogen peroxide,tert-butyl hydroperoxide or oxygen was investigated.The results showed that the introduction of heteroatoms did not destroy the mesostructure of KIT-6 with cubic Ia3d space group.La or ...
La-doped and La-B-doped KIT-6 mesoporous materials were prepared by direct hydrothermal synthesis with pH-adjusting method and characterized by X-ray diffractometer (XRD), nitrogen sorption, FT-IR, UV-Vis, X-ray photoelectron spectroscopy (XPS) and ICP-AES. The catalytic performance for the oxidation of styrene by hydrogen peroxide, tert-butyl hydroperoxide or oxygen was investigated. The results showed that the introduction of heteroatoms did not destroy the mesostructure of KIT-6 with cubic Ia3d space group. La or 13 cations were incorporated into the framework of KIT-6 and the coexistence of B could hinder the dispersion or incorporation of La into the framework. La3+ species in the framework of La-KIT-6 promoted the catalytic performance of La-KIT-6 catalyst for the oxidation of styrene. H2O2 is the better oxidant for the oxidation of styrene than tert-butyl hydroperoxide and oxygen, in which the styrene conversion of 20.6% and the selectivity to benzaldehyde of 74.6% were achieved over La-KIT-6-0.02.