fulltext.study @t Gmail

Influence of support on the aerobic oxidation of HMF into FDCA over preformed Pd nanoparticle based materials

Paper ID Volume ID Publish Year Pages File Format Full-Text
39679 45831 2014 10 PDF Available
Title
Influence of support on the aerobic oxidation of HMF into FDCA over preformed Pd nanoparticle based materials
Abstract

•Identical PVP-Pd NP were successfully deposited on different metal oxides.•The support influences the catalytic performance of supported Pd NP in HMF oxidation.•High yield of FDCA (90%) was obtained on Pd/ZrO2/La2O3.•Pd structure on support surface was changed during HMF oxidation.•The extent of structural changes of Pd was lowest on TiO2.

Here, the preparation and evaluation of supported nanoparticle based catalytic material is reported. Polyvinylpyrrolidone (PVP) stabilized palladium nanoparticles with a mean particle size of 1.8 nm were synthesized in ethylene glycol and subsequently deposited onto different metal oxide supports (TiO2, γ-Al2O3, KF/Al2O3, and ZrO2/La2O3). The prepared catalysts were applied to the aerobic oxidation of 5-hydroxymethylfurfural (HMF) to 2,5-furandicarboxylic acid (FDCA) in aqueous solution at atmospheric pressure (T = 90 °C, pO2 = 1 bar) and compared regarding their catalytic performance and stability. The highest FDCA yield (>90%) was obtained for the Pd/ZrO2/La2O3 catalysts which additionally showed a relatively stable catalytic performance when the material was reused. Various characterization methods including XRD, TEM, XPS, and AAS were applied to obtain information about the Pd NP before and after utilization in HMF oxidation. For the Pd/TiO2 the least changes in Pd NP structure were observed after using the material in HMF oxidation. This was attributed to a stronger interaction between the Pd NP and the TiO2 support compared to other supports used in the studies.

Graphical abstractFigure optionsDownload full-size imageDownload high-quality image (140 K)Download as PowerPoint slide

Keywords
Pd; Nanoparticles; Supported catalysts; 5-Hydroxymethylfurfural; 2 ;5-Furandicarboxylic acid; Oxidation
First Page Preview
Influence of support on the aerobic oxidation of HMF into FDCA over preformed Pd nanoparticle based materials
Get Full-Text Now
Don't Miss Today's Special Offer
Price was $35.95
You save - $31
Price after discount Only $4.95
100% Money Back Guarantee
Full-text PDF Download
Online Support
Any Questions? feel free to contact us
Publisher
Database: Elsevier - ScienceDirect
Journal: Applied Catalysis A: General - Volume 478, 20 May 2014, Pages 107–116
Authors
, , , , , ,
Subjects
Physical Sciences and Engineering Chemical Engineering Catalysis
Get Full-Text Now
Don't Miss Today's Special Offer
Price was $35.95
You save - $31
Price after discount Only $4.95
100% Money Back Guarantee
Full-text PDF Download
Online Support
Any Questions? feel free to contact us