Physical Sciences and Mathematics Commons^™

Au@H-Al2o3 Analogic Yolk–Shell Nanocatalyst For Highly Selective Synthesis Of Biomass-Derived D-Xylonic Acid Via Regulation Of Structure Effects, Jiliang Ma, Zewei Liu, Junlong Song, Linxin Zhong, Dequan Xiao, Hongxia Xi, Xuehui Li, Runcang Sun, Xinwen Peng

Chemistry and Chemical Engineering Faculty Publications

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 …