Room: Auditorium 2
Date: Tuesday, 10 June 2025
Time: 16:15 - 17:15 CEST
Session code 6BO.11
Co-production of biofuels and biochemicals
Simultaneous Coproduction of Xylonic Acid and Xylitol: Leveraging In Situ Hydrogen Generation and Utilization from Xylose
Short Introductive summary
The oxidation and reduction of pentoses, which produce valuable sugar-derived acids and alcohols, are usually carried out in separate steps with distinct reaction conditions. This study introduces an innovative one-pot method for simultaneously producing xylonic acid and xylitol from xylose. The reaction takes place at room temperature in a basic medium without the need for external gases, utilizing platinum-supported catalysts. Initial experiments with commercially available metal-supported carbon catalysts confirmed the high activity of platinum. However, the Pt/C catalyst showed a notable decrease in recyclability, likely due to the sintering of Pt nanoparticles. In contrast, the synthesized Pt-supported ZrO2 catalysts demonstrated improved recyclability, attributed to the strong interaction between Pt and the ZrO2 support. Additionally, mechanistic studies and density functional theory calculations revealed that product desorption has a significantly higher energy barrier than substrate adsorption and hydrogenation, underscoring an efficient transfer hydrogenation mechanism that achieves balanced yields of both xylonic acid and xylitol. This research offers a promising method f
EUBCE Student Awardee Presentation
Presenter
Ali AWAD
Green Carbon Research Center, Korea Research Institute of Chemical Technology, Advanced Materials and Chemical Engineering, University of Science and Technology, REPUBLIC OF KOREA
Biographies and Short introductive summaries are supplied directly by presenters and are published here unedited
Co-authors:
K.-R. Oh, Green Carbon Research Center, Korea Research Institute of Chemical Technology, Daejeon 34114, Repub, Daejeon, REPUBLIC OF KOREA
Y.-K. Hwang, Green Carbon Research Center, Korea Research Institute of Chemical Technology, Daejeon 34114, Repub, Daejeon, REPUBLIC OF KOREA
Session reference: 6BO.11.1