Biomass-based N doped carbon as metal-free catalyst for selective oxidation of D-xylose into D-xylonic acid

作     者：Zengyong Li Yiming Huang Xiao Chi Di Li Linxin Zhong Xuehui Li Chuanfu Liu Xinwen Peng Zengyong Li;Yiming Huang;Xiao Chi;Di Li;Linxin Zhong;Xuehui Li;Chuanfu Liu;Xinwen Peng

作者机构：State Key Laboratory of Pulp and Paper EngineeringSouth China University of TechnologyGuangzhou510640China School of Chemistry and Chemical EngineeringSouth China University of TechnologyGuangzhou510640China 

出 版 物：《Green Energy & Environment》 (绿色能源与环境（英文版）)

年 卷 期：2022年第7卷第6期

页      面：1310-1317页

核心收录：

学科分类：0830[工学-环境科学与工程（可授工学、理学、农学学位）] 081702[工学-化学工艺] 08[工学] 0817[工学-化学工程与技术] 0807[工学-动力工程及工程热物理] 0805[工学-材料科学与工程（可授工学、理学学位）] 080502[工学-材料学] 

基　　金：Supported by Fundamental Research Funds for the Central Universities(2019PY13) National Program for Support of Top-notch Young Professionals,Science and Technology Basic Resources Investigation Program of China(2019FY100903) National Natural Science Foundation of China(31971614) Guangdong Natural Science Funds for Distinguished Young Scholar(2016A030306027) Guangdong Natural Science Funds(2017A030313130) Guangzhou science and technology funds(201904010078) State Key Lab of Pulp and Paper Engineering(2020C03) China Postdoctoral Science Foundation Grant(2019T120725,2019M652882). 

主　　题：Biomass carbon Metal-free catalysts D-xylose Sugar acid Selective oxidation 

摘      要：Rational design and facile preparation of low-cost and efficient catalysts for the selective converting of biomass-derived monosaccharides into high value-added chemicals is highly demanded,yet challenging.Herein,we first demonstrate a N doped defect-rich carbon(NC-800-5)as metal-free catalyst for the selective oxidation of D-xylose into D-xylonic acid in alkaline aqueous solution at 100℃ for 30 min,with 57.4%yield.The doped graphitic N is found to be the active site and hydroxyl ion participating in the oxidation of D-xylose.Hydroxyl ion and D-xylose first adsorb on NC-800-5 surface,and the aldehyde group of D-xylose is catalyzed to form germinal diols ion.Then,C–H bond break to yield carboxylic group.Furthermore,NC-800-5 catalyst shows high stability in recycled test.