Bimetallic Pt-Cu catalysts for glycerol oxidation with oxygen in a base-free aqueous solution

被引:96
作者
Liang, Dan [1 ]
Gao, Jing [1 ]
Wang, Junhua [1 ]
Chen, Ping [1 ]
Wei, Yanfei [2 ]
Hou, Zhaoyin [1 ]
机构
[1] Zhejiang Univ, Inst Catalysis, Dept Chem, Key Lab Appl Chem Zhejiang Prov, Hangzhou 310028, Zhejiang, Peoples R China
[2] Environm Sci Res & Design Inst Zhejiang Prov, Hangzhou 310020, Zhejiang, Peoples R China
关键词
Glycerol oxidation; Pt-Cu catalysts; Base-free; Carbon supports; SELECTIVE OXIDATION; PHASE OXIDATION; CARBON-MONOXIDE; AU CATALYSTS; PD; BEHAVIOR; BIODIESEL; ALCOHOLS; METALS;
D O I
10.1016/j.catcom.2011.03.019
中图分类号
O64 [物理化学(理论化学)、化学物理学];
学科分类号
070304 ; 081704 ;
摘要
A series of carbon supported bimetallic Pt-Cu catalysts were prepared and used for glycerol oxidation with oxygen in a base-free aqueous solution. It was found that bimetallic PtCu/C was more active than monometallic Pt/C towards selective oxidation of glycerol to glyceric acid. The selectivity of free glyceric acid reached 70.8% at an 86.2% conversion of glycerol over 5Pt-Cu/C. Highly dispersed bimetallic Pt-Cu nanoparticles with small particle size in dominant alloyed phase of PtCu(3) were confirmed by XRD and TEM in the bimetallic Pt-Cu/C catalyst, which is proposed to contribute to the improved performance. (C) 2011 Elsevier B.V. All rights reserved.
引用
收藏
页码:1059 / 1062
页数:4
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