期刊
MICROPOROUS AND MESOPOROUS MATERIALS
卷 277, 期 -, 页码 163-170出版社
ELSEVIER SCIENCE BV
DOI: 10.1016/j.micromeso.2018.10.038
关键词
Benzene; Aniline; Core-shell structure; Bifunctional catalyst
类别
资金
- National Natural Science Foundation of China [21276132]
- Key R&D project of Shandong Province [2016GSF117029]
The synthesis of aniline by one step amination of benzene has always been a great challenge. In this work, we used CTAB as the structure-directing agent (SDA) to synthesize the MCM-41 shell with an ordered hexagonal mesoporous structures covered on surface of the titanium silicalite-1 nanoparticle by a self-assembly method. And a bifunctional catalyst Cu/TS-1@MCM-41 was synthesized by loading metal copper species to achieve one-step amination of benzene. X-ray diffraction, N-2 adsorption-desorption, SEM, TEM, FT-IR, UV-vis DRS and XPS were used to characterize Cu/TS-1@MCM-41 to find out the crystal structure and physical properties of the catalyst. The catalyst was successfully applied in the reaction of benzene to aniline by one-step amination and exhibited good catalytic performance and no formation of by-product phenol. And according to the experimental results, a reasonable catalytic pathway for amination of benzene over Cu/TS-1@MCM-41 was proposed.
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