Abstract
Au-Pd alloy nanoparticles supported on basic anion-exchange resin (AER) have exceptional catalytic activity for the oxidation of 5-hydroxymethyl-2-furfural (HMF) into 2,5-furan dicarboxylic acid (FDCA) with an equimolar amount of base. SEM-EDX and TEM analyses show that 5–20 nm Au-Pd alloy nanoparticles are well dispersed both on the resin surface and inside resin spheres by a simple procedure without any assistance of additives. XPS analysis reveals that Au- and Pd metals exist in an alloy form on the AER support, which is confirmed by a comparison study with a mixture of AER-supported monometallic nanoparticles (AER-supported Au and AER-supported Pd). In the presence of a 1:1 ratio of Au-Pd alloy nanoparticles over Amberlite IRA-743 resin with O2 (10 bar) at 373 K in an equimolar Na2CO3 aqueous solution, HMF is oxidized to FDCA with a 93.2% yield. On the other hand, mixture of AER-supported Au and AER-supported Pd affords only a 52% FDCA yield under identical conditions. This catalyst can be used 6 times without any significant loss of activity. FDCA is also obtained from HMF with an 82.9% yield in air (40 bar).
Original language | English |
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Pages (from-to) | 230-236 |
Number of pages | 7 |
Journal | Applied Catalysis A: General |
Volume | 547 |
DOIs | |
Publication status | Published - 2017 |
Bibliographical note
Funding Information:This work was financially supported by the National Research Council of Science & Technology (NST) grant by the Korea government (No. CAP-11-04-KIST ) and we acknowledge financial support for this research by the Internal Research Program ( PEO17250 & PJB17130 ) of Korea Institute of Industrial Technology (KITECH).
Publisher Copyright:
© 2017 Elsevier B.V.
Keywords
- 2,5-Furan dicarboxylic acid (FDCA)
- 5-Hydroxymethyl-2-furfural (HMF)
- Anion-exchange resin (AER)
- Au-Pd alloynanoparticles
- Oxidation
ASJC Scopus subject areas
- Catalysis
- Process Chemistry and Technology