On the mechanism of selective oxidation of 5-hydroxymethylfurfural to 2,5-furandicarboxylic acid over supported Pt and Au catalysts

被引：340
|
作者：
Davis, Sara E. [1 ]
Zope, Bhushan N. [1 ]
Davis, Robert J. [1 ]
机构：
[1] Univ Virginia, Dept Chem Engn, Charlottesville, VA 22904 USA
来源：
GREEN CHEMISTRY | 2012年 / 14卷 / 01期
基金：
美国国家科学基金会; 美国能源部;
关键词：
AEROBIC OXIDATION; GOLD; CHEMICALS; BIOMASS;
D O I：
10.1039/c1gc16074e
中图分类号：
O6 [化学];
学科分类号：
0703 ;
摘要：
The mechanism of selective oxidation of aqueous 5-hydroxymethylfurfural (HMF) at high pH was studied over supported Pt and Au catalysts. Results from labeling experiments conducted with O-18(2) and (H2O)-O-18 indicated that water was the source of oxygen atoms during the oxidation of HMF to 2-hydroxymethylfurancarboxylic acid (HFCA) and 2,5-furandicarboxylic acid (FDCA), presumably through direct participation of hydroxide in the catalytic cycle. Molecular oxygen was essential for the production of FDCA and played an indirect role during oxidation by removing electrons deposited into the supported metal particles. A reaction path for HMF oxidation to FDCA was proposed.
引用
收藏
页码：143 / 147
页数：5
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