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Basicity-Tuned Hydrotalcite-Supported Pd Catalysts for Aerobic Oxidation of 5-Hydroxymethyl-2-furfural under Mild Conditions
- Source :
- ACS Sustainable Chemistry & Engineering. 4:4752-4761
- Publication Year :
- 2016
- Publisher :
- American Chemical Society (ACS), 2016.
-
Abstract
- An environmentally benign and homogeneous base-free route for 5-hydroxymethyl-2-furfural (HMF) aerobic oxidation to 2,5-furandicarboxylic acid (FDCA) in water was reported using Mg–Al–CO3 hydrotalcite-supported Pd nanoparticles (xPd/HT-n) as catalyst. The influences of the Mg/Al molar ratio of hydrotalcite and Pd loading amount on the catalytic performance of these catalysts were originally systematically investigated. These catalysts exhibited excellent catalytic activity and FDCA selectivity in the HMF oxidation, especially for 2%Pd/HT-5 and 2%Pd/HT-6; >99.9% FDCA yields were achieved for 8 h under ambient pressure and homogeneous base-free conditions. The remarkably improved catalytic performance could be attributed to the suitable basicity of the Mg–Al–CO3 hydrotalcite and the abundant OH– groups on the surface of hydrotalcite. The plausible reaction mechanism was proposed based on the results of a series of controlled experiments. Furthermore, these catalysts were quite stable and could be reused at ...
- Subjects :
- Reaction mechanism
Hydrotalcite
010405 organic chemistry
Renewable Energy, Sustainability and the Environment
Chemistry
General Chemical Engineering
Inorganic chemistry
General Chemistry
010402 general chemistry
01 natural sciences
0104 chemical sciences
Catalysis
Homogeneous
Pd nanoparticles
Environmental Chemistry
Selectivity
5 hydroxymethyl 2 furfural
Ambient pressure
Subjects
Details
- ISSN :
- 21680485
- Volume :
- 4
- Database :
- OpenAIRE
- Journal :
- ACS Sustainable Chemistry & Engineering
- Accession number :
- edsair.doi...........db83977b69db8f6354ef93aa290a5afe