Porous Metal-Organic Framework Materials: Microwave Assisted Synthesis and Oxidative Catalytic Tests

• Type: Article in International Conference Proceedings Book
• Date: 2013

Authors

Andre D S Barbosa (Author) Other; Salete S Balula (Author) Other; Filipe A A Almeida Paz (Author) Other; Baltazar de Castro (Author) FCUP; Luis Cunha Silva (Author) Other

Conference proceedings International

Title: ADVANCED MATERIALS FORUM VI, PTS 1 AND 2

Pages: 1024-1029

6th International Materials Symposium (MATERIALS 2011)/15th Meeting of SPM

Guimaraes, PORTUGAL, APR 18-20, 2011

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Scientific classification

FOS: Engineering and technology > Materials engineering

Other information

Authenticus ID: P-005-3QM

DOI: 10.4028/www.scientific.net/msf.730-732.1024

Abstract (EN): Metal-Organic Framework Materials MIL-101(Cr) ([Cr3X(H2O)(2)O(bdc)(3)]center dot n(H2O), where X- = F- or OH-, n approximate to 25 and H(2)bdc stands for 1,4-benzene-dicarboxylic acid] and MOF-5(Zn) [Zn4O(bdc)(3)] were prepared by hydrothermal or solvothermal methods as well as Microwave-Assisted Synthesis (MWAS), for which the detailed synthetic parameters were optimized. The crystal structures were confirmed by powder X-ray diffraction and the materials were further characterized by FT-IR absorption spectroscopy. MIL-101(Cr) and MOF-5(Zn) showed weak catalytic activity in the oxidation of terpene, thiophene and cis-cyclooctene. Reasonable catalytic activity was observed for MOF-5(Zn) in the epoxidation of cis-cyclooctene and a 100 % of selectivity was observed for the epoxide. The structural stability of the materials was tested under the employed catalytic medium for oxidation reactions. MOF-5(Zn) revealed a remarkable structural stability at high temperature and also in the presence of high oxidant amounts.

Language: English

Type (Professor's evaluation): Scientific

No. of pages: 6