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- Title
Uniform cerium-based metal-organic framework microflowers: controlled synthesis, characterization and formation mechanism.
- Authors
Ning, Zhanglei; He, Xi; He, Lin; Lei, Xiting; Lu, Yingjiong; Bi, Jian; Gao, Daojiang; Sun, Changyan; Li, Wenjun
- Abstract
Three dimensional (3D) flower-like cerium pyrazine-2,3,5,6-tetracarboxylate metal-organic framework has been successfully prepared on a large scale through a simple and facile hydrothermal method without the assistance of any surfactant or template. The composition and structure of the samples were well characterized by Fourier transform infrared spectroscopy, X-ray powder diffraction, elemental analysis, thermogravimetric analysis, scanning electron microscopy, and energy dispersive X-ray, respectively. The experimental results indicate that these 3D flower-like architectures with diameter of about 4 μm are composed of a large number of nanosheets. The presumed molecular formula of the cerium-based metal-organic framework is Ce(pztc)(HO). In addition, a possible mechanism for the formation of cerium pyrazine-2,3,5,6-tetracarboxylate architectures was proposed based on time-dependent experiments. Furthermore, the as-obtained flower-like cerium-based metal-organic framework architectures could be easily transformed into CeO microstructures with flower-like outlines through simply heat-treating in air.
- Subjects
FOURIER transform infrared spectroscopy; FOURIER transform spectroscopy; SCANNING electron microscopy; CERIUM; BASTNAESITE
- Publication
Journal of Materials Science: Materials in Electronics, 2017, Vol 28, Issue 17, p12885
- ISSN
0957-4522
- Publication type
Article
- DOI
10.1007/s10854-017-7118-9