期刊
JOURNAL OF MOLECULAR CATALYSIS A-CHEMICAL
卷 420, 期 -, 页码 254-263出版社
ELSEVIER
DOI: 10.1016/j.molcata.2016.04.019
关键词
Environment-friendly immobilized; platinum; Hydrosilylation; Heterogeneous catalyst; Ethylenediaminetetraacetic acid
资金
- National Natural Science Foundation of China [21375093]
- Specialized Research Fund for the Doctoral Program of Higher Education [20130032120081]
- Science and Technology Committee of Tianjin Municipal Government [15JCQNJC43200]
- Independent innovation foundation of Tianjin University [1102213]
A novel catalyst by preparing silica supported ethylenediaminetetraacetic acid (EDTA) platinum complex was developed. The preparation conditions, such as heating temperature and solvent types, were optimized. The catalyst was phosphine-free and sulfur-free which was characterized by infrared spectroscopy (IR), energy dispersive X-ray spectrometer (EDS), transmission electron microscopy (TEM), high resolution transmission electron microscopy (HRTEM), X-ray photoelectron spectroscopy (XPS), ultraviolet spectroscopy (UV) and atomic absorption spectroscopy (AAS). Its catalytic activity was evaluated by catalyzing solventless hydrosilylation reactions. In the hydrosilylation reaction between 1-hexene and methyldicholosilane, the new catalyst showed a higher catalytic activity than that provided by Spiere's catalyst. Moreover, the new catalyst could be reused for 12 times without obvious loss of catalytic activity. To confirm its practical feasibility, catalyzing the hydrosilylation reaction between 1-octene and methyldichlorosilane was performed. Our results indicated that the new catalyst can efficiently catalyze the hydrosilylation reaction. (c) 2016 Elsevier B.V. All rights reserved.
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