Oxidation of 5-hydroxymethylfurfural over supported Pt, Pd and Au catalysts

被引：358

作者：

Davis, Sara E. ^{[1
]}

Houk, Levi R. ^{[2
,3
]}

Tamargo, Erin C. ^{[1
]}

Datye, Abhaya K. ^{[2
,3
]}

Davis, Robert J. ^{[1
]}

机构：

[1] Univ Virginia, Dept Chem Engn, Charlottesville, VA 22904 USA

[2] Univ New Mexico, Ctr Microengineered Mat, Albuquerque, NM 87131 USA

[3] Univ New Mexico, Dept Chem & Nucl Engn, Albuquerque, NM 87131 USA

来源：

CATALYSIS TODAY | 2011年 / 160卷 / 01期

基金：

美国国家科学基金会;

关键词：

5-Hydroxymethylfurfural; Oxidation; Gold catalysis; Heterogeneous catalysis; Biomass; AEROBIC OXIDATION; 2,5-FURANDICARBOXYLIC ACID; SELECTIVE OXIDATION; BIOMASS; CHEMICALS; 5-HYDROXYMETHYL-2-FURALDEHYDE; DEHYDRATION; GLYCEROL; FRUCTOSE;

D O I：

10.1016/j.cattod.2010.06.004

中图分类号：

O69 [应用化学];

学科分类号：

081704 ;

摘要：

Supported Pt, Pd, and Au catalysts were evaluated in the aqueous-phase oxidation of 5-hydroxymethylfurfural (HMF) to 2,5-furandicarboxylic acid (FDCA) at 295K and high pH in a semibatch reactor. The intermediate reaction product 5-hydroxymethyl-2-furancarboxylic acid (HFCA) was formed in high yield over Au/C and Au/TiO2 at 690 kPa O-2, 0.15M HMF and 0.3M NaOH, but did not continue to react substantially to FDCA at the specified O-2 pressure and base concentration. In contrast, the final reaction product FDCA was formed over Pt/C and Pd/C under identical conditions. The initial turnover frequency of HMF conversion was an order of magnitude greater on Au catalysts compared to either Pt or Pd. Increasing the O-2 pressure and NaOH concentration facilitated the conversion of HFCA to FDCA over the supported Au. The significant influence of base concentration on the product distribution indicates an important role of OH-in the activation, oxidation and degradation of HMF. (C) 2010 Elsevier B.V. All rights reserved.

引用

页码：55 / 60

页数：6

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