期刊
JOURNAL OF ORGANOMETALLIC CHEMISTRY
卷 713, 期 -, 页码 104-111出版社
ELSEVIER SCIENCE SA
DOI: 10.1016/j.jorganchem.2012.04.019
关键词
Heterogeneous Cu (II) and Zn (II) complexes; Catalysts; Carbon dioxide; Salicylaldimine ligand; Cyclic carbonate
资金
- TUBITAK (The Scientific and Technological Research Council of Turkey) [110T655]
- OYP (State Plannig Organisation) [2005DPT003/7]
A series of silica supported Salen type Zn(II) and Cu(II) complexes were prepared and characterized. The obtained materials were characterized by X-ray diffraction (XRD), sorption measurement (BET), Fourier transform infrared spectroscopy (FT-IR), atomic absorption spectroscopy (AAS), atomic force microscopy (AFM), scanning electron micrograph (SEM), thermal and elemental analysis. The chemical fixation of CO2 to form cyclic carbonates in the presence of a Lewis base was efficiently performed by this heterogeneous catalyst system. Very high yield and conversions were obtained at 1.0 MPa CO2 atmosphere without an addition of any solvent. The active heterogeneous Cu-DTBSA was efficiently transformed CO2 into cyclic carbonates while the reusability of the Cu-DTBSA is eight times with minimal decrease in yield. (C) 2012 Elsevier B.V. All rights reserved.
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