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

查看全文 作　　者：Zengyong [1]Li;Yiming [1]Huang;Xiao [1]Chi;Di [1]Li;Linxin [1]Zhong;Xuehui [2]Li;Chuanfu [1]Liu;Xinwen [1]Peng 高影响力作者 机构地区：[1]State Key Laboratory of Pulp and Paper Engineering,South China University of Technology,Guangzhou,510640,China;[2]School of Chemistry and Chemical Engineering,South China University of Technology,Guangzhou,510640,China高影响力机构 出　　处：《Green Energy & Environment》索引2022年第7卷第6期,共8页高影响力期刊 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). 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. 关 键 词：Biomass carbon Metal-free catalysts D-XYLOSE Sugar acid Selective oxidation
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