Consequences of Fe speciation in MFI zeolites for hydroxylation of benzene to phenol with H2O2

被引：36
|
作者：
Xiao, Peipei [1 ]
Wang, Yong [1 ]
Kondo, Junko N. [1 ]
Yokoi, Toshiyuki [1 ,2 ]
机构：
[1] Tokyo Inst Technol, Inst Innovat Res, Midori Ku, 4259 Nagatsuta, Yokohama, Kanagawa 2268503, Japan
[2] JST, PRESTO, Midori Ku, 4259 Nagatsuta, Yokohama, Kanagawa 2268503, Japan
来源：
APPLIED CATALYSIS A-GENERAL | 2019年 / 579卷
关键词：
Benzene to phenol; Activity; Fe species; MFI; H2O2; SELECTIVE CATALYTIC-REDUCTION; HYDROGEN-PEROXIDE; DIRECT OXIDATION; NITROUS-OXIDE; IRON SITES; ACTIVE-SITES; LIQUID-PHASE; FE-ZSM-5; CO; SPECTROSCOPY;
D O I：
10.1016/j.apcata.2019.04.025
中图分类号：
O64 [物理化学（理论化学）、化学物理学];
学科分类号：
070304 ; 081704 ;
摘要：
Fe-containing MFI zeolite catalysts were prepared by different methods to obtain different Fe speciation and applied in the direct hydroxylation of benzene to phenol reaction with H2O2. The Fe speciation were characterized by UV-vis and NO adsorbed FT-IR techniques in details. The effects of various reaction parameters on the catalytic performance and the reusability of the catalyst have been studied. Under optimized reaction conditions, directly synthesized Fe-silicalite-1 showed the highest phenol yield of 5.7%, which was higher than post-synthesized Fe-silicalite-1 and Fe-ZSM-5. Furthermore, the phenol yield can be improved to 7.6% by alkaline treatment. Finally, the active Fe species for the BTP reaction were clarified.
引用
收藏
页码：159 / 167
页数：9
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