期刊
CATALYSIS COMMUNICATIONS
卷 10, 期 12, 页码 1586-1590出版社
ELSEVIER SCIENCE BV
DOI: 10.1016/j.catcom.2009.04.023
关键词
Glycerol; Glyceric acid; Oxidation; Platinum catalysts; Base-free
资金
- National Natural Science Foundation of China [90610002]
- Zhejiang Provincial Natural Science Foundation [Z406142]
- Ministry of Science and Technology of China through the National Key Project of Fundamental Research [2007CB210207]
A series of Pt/C catalysts with different Pt particle size ranged from 1.2 to 26.5 nm were prepared and used for the oxidation of glycerol in a base-free aqueous solution. The morphologies and the dispersion of Pt were characterized by CO adsorption, TEM and XRD. It was found that the dispersion of Pt depends strongly on the surface properties of the support, the amount of reducing agent and preparation temperature. Though bigger sized Pt particles (>10 nm) were less active, smaller sized ones (<6 nm) exhibited higher glycerol conversion, stable selectivity and good recycled activity. (C) 2009 Elsevier B.V. All rights reserved.
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