Mesoporous zinc aluminate (ZnAl2O4) nanocrystal: Synthesis, structural characterization and catalytic performance towards phenol hydroxylation
作者： Wanju Zhang , Yongzheng Wang , Yu Shen , Mingjiang Xie , Xuefeng Guo
DOI: 10.1016/J.MICROMESO.2016.02.001
关键词: Desorption 、 Chemical engineering 、 Nanocrystal 、 Aluminate 、 Inorganic chemistry 、 Adsorption 、 Zinc 、 Catalysis 、 Mesoporous material 、 Lewis acids and bases 、 Materials science
摘要: Abstract Mesoporous zinc aluminate (ZnAl2O4) nanocrystal with rhombus-shaped morphology was for the first time synthesized by a vacuum-promoted self-assembly and alkaline hydrothermal approach. The obtained mesoporous ZnAl2O4 (Meso-ZA) characterized X-ray diffraction (XRD), nitrogen sorption, transmission electron micrograph (TEM), pyridine adsorbed infrared spectra (Pyridine-FTIR) temperature-programmed desorption of ammonia (NH3-TPD). characterization results indicate that final Meso-ZA possesses morphology, worm-like structure, crystalline framework, narrow pore size distribution, large surface area (up to 216 m2/g) rich Lewis acid sites. catalytic test on phenol hydroxylation shows exhibits superior performances titanium silicalite (TS-1) bulk aluminate.
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