Li-promoted C3N4 catalyst for efficient isomerization of glucose into fructose at 50 ℃ in water

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外文摘要：Efficient and selective glucose-to-fructose isomerization is a crucial step for production of oxygenated chemicals derived from sugars,which is usually catalyzed by base or Lewis acid heterogeneous catalyst.However,high yield and selectivity of fructose cannot be simultaneously obtained under mild conditions which hamper the scale of application compared with enzymatic catalysis.Herein,a Li-promoted C3N4 catalyst was exploited which afforded an excellent fructose yield(40.3 wt％)and selectivity(99.5％)from glucose in water at 50 ℃,attributed to the formation of stable Li-N bond to strengthen the basic sites of catalysts.Furthermore,the so-formed N6-Li-H2O active site on Li-C3N4 catalyst in aqueous phase changes the local electronic structure and strengthens the deprotonation process during glucose isomerization into fructose.The superior catalytic performance which is comparable to biological pathway suggests promising applications of lithium containing heterogeneous catalyst in biomass refinery.

外文关键词：

GlucoseFructoseIsomerizationLi-C3N4Density functional theory calculations

作者：

Wang Liu、Yanfei Zhang、Mengya Sun、Xinpeng Zhao、Shenggang Li、Xinqing Chen、Liangshu Zhong、Lingzhao Kong

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作者单位：

CAS Key Laboratory of Low-Carbon Conversion Science and Engineering,Shanghai Advanced Research Institute,Chinese Academy of Sciences,Shanghai,201210,China

University of Chinese Academy of Sciences,Beijing,100049,China

School of Physical Science and Technology,Shanghai Tech University,Shanghai,201203,China

School of Environmental Science and Engineering,Suzhou University of Science and Technology,Suzhou,Jiangsu,215009,China

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基金：

National Natural Science Foundation of ChinaNational Natural Science Foundation of ChinaNational Natural Science Foundation of ChinaNational Natural Science Foundation of ChinaMinistry of Science and Technology of ChinaSuzhou Key Technology Research(Social Development)Project

项目编号：

222784192197831622108289221721882018YFB06047002023ss06

出版年：

2024

DOI：

10.1016/j.gee.2023.04.005

绿色能源与环境(英文)

CSTPCD

ISSN：

年,卷(期)：2024.9(9)