One-pot catalytic conversion of cellulose into polyols with Pt/CNTs catalysts
One-pot catalytic conversion of cellulose into polyols with Pt/CNTs catalysts
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DOI：
10.1016/j.carres.2014.12.001
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发表时间：
2015-03-02
影响因子：
3.1
通讯作者：
Xia, Haian
中科院分区：
文献类型：
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作者：
Yang, Li;Yan, Xiaopei;Xia, Haian
采用初湿浸渍法制备了一系列碳纳米管负载铂纳米颗粒。采用X射线光电子能谱（XPS）、X射线衍射（XRD）、拉曼光谱和透射电子显微镜（TEM）等技术对催化剂进行了表征。表征结果表明，Pt纳米粒子高度分散在碳纳米管表面，平均粒径小于5 nm。这些催化剂用于在低H2压力下将纤维素转化为己糖醇、乙二醇（EG）和1，2-丙二醇（1，2-PG）。以1 Pt/CNTs为催化剂，在温和的反应条件下进行纤维素水解加氢，EG和1，2-PG的总收率高达71.4%。(C)2014爱思唯尔有限公司版权所有。
A series of Pt nanoparticles supported on carbon nanotubes (CNTs) were synthesized using the incipient-wetness impregnation method. These catalysts were characterized by X-ray photoelectron spectroscopy (XPS), X-ray diffraction (XRD), Raman spectroscopy, and transmission electron microscope (TEM) techniques. The characterization results indicate that the Pt nanoparticles were highly dispersed on the surface of the CNTs, and the mean size was less than 5 nm. These catalysts were utilized to convert cellulose to hexitol, ethylene glycerol (EG), and 1,2-propylene glycol (1,2-PG) under low H-2 pressure. The total yields were as high as 71.4% for EG and 1,2-PG using 1 Pt/CNTs as the catalyst in the hydrolytic hydrogenation of cellulose under mild reaction conditions. (C) 2014 Elsevier Ltd. All rights reserved.