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- Title
Study of Mesoporous Zr-TiO 2 Catalyst with Rich Oxygen Vacancies for N-Methylmorpholine Oxidation to N-Methylmorpholine-N-oxide.
- Authors
Li, Yongwei; Fang, Zhihao; Feng, Lijuan; Liu, Fangfang; Shi, Yucui; Li, Jiao; Zhao, Chao
- Abstract
A series of Zr-TiO2 catalysts were prepared using a facile sol-gel method and were used for N-methylmorpholine (NMM) oxidation to N-methylmorpholine-N-oxide (NMMO). The structure features of Zr-TiO2 catalysts were studied in detail through a variety of characterization methods, such as XRD, SEM, N2 adsorption-desorption isotherms, XPS, EPR, and O2-TPD. As-obtained 5%Zr-TiO2 catalysts had superior catalytic performance and stability with a 97.6% NMMO yield at 40 °C, which related to Zr doping, a higher surface area, more oxygen vacancies, and oxygen chemisorption on the catalytic surface. This work provides an efficient preparation strategy of TiO2-based catalysts for selective oxidation reactions by a facile method.
- Subjects
SOL-gel processes; X-ray diffraction; NANOPARTICLES; SURFACE area; CATALYSTS
- Publication
Molecules, 2024, Vol 29, Issue 16, p3812
- ISSN
1420-3049
- Publication type
Article
- DOI
10.3390/molecules29163812