Au@h-Al2O3 Analogic Yolk–Shell Nanocatalyst for Highly Selective Synthesis of Biomass-Derived D-xylonic Acid via Regulation of Structure Effects

Authors

Jiliang Ma, South China University of Technology
Zewei Liu, South China University of Technology
Junlong Song, Nanjing Forestry University
Linxin Zhong, South China University of Technology
Dequan Xiao, University of New HavenFollow
Hongxia Xi, South China University of Technology
Xuehui Li, South China University of Technology
Runcang Sun, Beijing Forestry University
Xinwen Peng, South China University of Technology

Author URLs

Professor Xiao's Faculty Profile

Document Type

Article

Publication Date

10-3-2018

Subject: LCSH

Sugar acids, Xylose, Oxidation

Disciplines

Chemical Engineering | Chemistry

Abstract

Selective oxidation of biomass-based monosaccharides into value-added sugar acids is highly desired, but limited success of producing D-xylonic acid has been achieved. Herein, we report an efficient catalyst system, viz., Au nanoparticles anchored on the inner walls of hollow Al₂O₃ nanospheres (Au@h- Al₂O₃), which could catalyze the selective oxidation of D-xylose into D-xylonic acid under base-free conditions. The mesoporous Al₂O₃ shell as the adsorbent first adsorbed D-xylose. Then, the interface of Au nanoparticles and Al₂O₃ as active sites spontaneously dissociated O₂, and the exposed Au nanoparticle surface as the catalytic site drove the transformation. With this catalyst system, the valuable D-xylonic acid was produced with excellent yields in the aerobic oxidation of D-xylose. Extensive investigation showed that Au@h- Al₂O₃ is an efficient catalyst with high stability and recyclability.

Comments

This is the authors' accepted manuscript of the article published in Green Chemistry. The published version can be found at http://dx.doi.org/10.1039/C8GC02618A

DOI

10.1039/C8GC02618A

Repository Citation

Ma, Jiliang; Liu, Zewei; Song, Junlong; Zhong, Linxin; Xiao, Dequan; Xi, Hongxia; Li, Xuehui; Sun, Runcang; and Peng, Xinwen, "Au@h-Al2O3 Analogic Yolk–Shell Nanocatalyst for Highly Selective Synthesis of Biomass-Derived D-xylonic Acid via Regulation of Structure Effects" (2018). Chemistry and Chemical Engineering Faculty Publications. 32.
https://digitalcommons.newhaven.edu/chemicalengineering-facpubs/32

Publisher Citation

Ma, Jiliang, Zewei Liu, Junlong Song, Linxin Zhong, Dequan Xiao, Hongxia Xi, Xuehui Li, Run-Cang Sun, and Xinwen Peng (2018). "Au@ h-Al2O3 analogic yolk-shell nanocatalyst for highly selectively synthesis of biomass-derived D-xylonic acid via regulation of structure effect." Green Chemistry 20:5188-5195.