Selective oxidation of 5-hydroxymethyl-2-furfural using supported gold-copper nanoparticles

被引：235

作者：

Pasini, Thomas ^{[1
]}

Piccinini, Marco ^{[2
]}

Blosi, Magda ^{[3
]}

Bonelli, Rosa ^{[1
]}

Albonetti, Stefania ^{[1
]}

Dimitratos, Nikolaos ^{[2
]}

Lopez-Sanchez, Jose A. ^{[2
]}

Sankar, Meenakshisundaram ^{[2
]}

He, Qian ^{[4
]}

Kiely, Christopher J. ^{[4
]}

Hutchings, Graham J. ^{[2
]}

Cavani, Fabrizio ^{[1
]}

机构：

[1] Dip Chim Ind & Mat, I-40136 Bologna, BO, Italy

[2] Cardiff Univ, Cardiff Catalysis Inst, Sch Chem, Cardiff CF10 3AT, S Glam, Wales

[3] ISTEC CNR, I-48018 Faenza, Italy

[4] Lehigh Univ, Bethlehem, PA 18015 USA

来源：

GREEN CHEMISTRY | 2011年 / 13卷 / 08期

关键词：

LIQUID-PHASE OXIDATION; AEROBIC OXIDATION; CO OXIDATION; 2,5-FURANDICARBOXYLIC ACID; CATALYTIC-ACTIVITY; CARBON-MONOXIDE; BIOMASS; AU; CHEMICALS; TITANIA;

D O I：

10.1039/c1gc15355b

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

The oxidation of 5-hydroxymethyl-2-furfural was studied under mild reaction conditions using TiO2-supported Au and Au-Cu catalysts synthesized from pre-formed nanoparticles. Bimetallic gold-copper catalysts display superior activity as compared to monometallic gold. Moreover, after reaction, the bimetallic Au-Cu catalysts can be recovered by filtration and reused without significant loss of activity and selectivity whereas gold materials are not stable. STEM-HAADF imagining and XEDS spectra obtained from bimetallic materials show that particles are homogeneous AuCu alloys. No AuCu ordering or segregation effects were noted from these analyses, and the Au: Cu ratio was quite consistent from particle-to-particle irrespective of its absolute size, proving the efficiency of the original method of synthesis utilized. Isolation effects of gold by copper in the alloy nanoparticles is imagined to play a pivotal role in the reaction. The effect of oxygen pressure, metal loading, reaction time, amount of base and temperature were studied in detail and a 99% yield of furandicarboxylic acid was achieved under optimized reaction conditions.

引用

页码：2091 / 2099

页数：9

共 42 条

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