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生物质化学工程 ›› 2016, Vol. 50 ›› Issue (6): 1-8.doi: 10.3969/j.issn.1673-5854.2016.06.001

• 研究报告 •    下一篇

改性的NiB非晶态合金催化葡萄糖氢解制备低碳二元醇

乔鸿昌, 程从梅, 周静红, 隋志军, 周兴贵   

  1. 华东理工大学 化学工程联合国家重点实验室, 上海 200237
  • 收稿日期:2016-03-08 出版日期:2016-11-30 发布日期:2016-12-03
  • 通讯作者: 周静红,女,教授,硕士生导师,主要从事催化反应工程、催化材料制备和生物质催化转化等方面的研究;E-mail:jhzhou@ecust.edu.cn E-mail:jhzhou@ecust.edu.cn
  • 作者简介:乔鸿昌(1990-),男,河南泌阳人,硕士生,主要从事葡萄糖催化转化的研究
  • 基金资助:
    国家自然科学基金资助项目(21106047)

Catalytic Hydrogenolysis of Glucose into Low Carbon Glycols over Modified NiB Amorphous Alloy Catalysts

QIAO Hong-chang, CHENG Cong-mei, ZHOU Jing-hong, SUI Zhi-jun, ZHOU Xing-gui   

  1. State Key Laboratory of Chemical Engineering, East China University of Science and Technology, Shanghai 200237, China
  • Received:2016-03-08 Online:2016-11-30 Published:2016-12-03

摘要: 采用化学还原法制备了NiB非晶态合金催化剂,并引入W、Mo对NiB催化剂进行改性,利用X射线衍射、N2物理吸附、电感耦合等离子体发射光谱、透射电子显微镜和氢气程序升温脱附等手段表征了催化剂的物理化学性质,考察了其催化葡萄糖氢解制备乙二醇、丙二醇等低碳二元醇的催化性能,并进一步探讨了W在葡萄糖氢解中的作用。结果表明:W、Mo引入NiB非晶态合金可以改变催化剂微结构,促进葡萄糖氢解过程中C-C键的断裂,并催化葡萄糖氢解生成低碳二元醇;W的断键能力要优于Mo,NiWB催化葡萄糖氢解得到的乙二醇和1,2-丙二醇的收率分别为37.0%和11.3%,而NiMoB的乙二醇、1,2-丙二醇收率分别为6.6%和8.9%;W改性的NiB非晶态合金同时具备加氢和断键能力,是一种具有应用前景的糖醇氢解新型催化剂。

关键词: NiB, 非晶态合金, 改性, 葡萄糖氢解, 低碳二元醇

Abstract: The NiB amorphous alloy catalysts were prepared by chemical reduction method and modified by W and Mo.The samples were characterized by X-ray diffraction(XRD),N2 physisorption measurement,inductively coupled plasma atomic emission spectroscopy(ICP-AES),transmission electron microscopy(TEM) and temperature programed H2 desorption(H2-TPD).The investigation of the catalytic performance in glucose hydrogenolysis showed that the doping of W and Mo into NiB could change the micro-structure of the catalyst and induce the cleavage of C-C bond in the hydrogenolysis.Therefore,the modified NiB could catalyze the hydrogenolysis of glucose into low carbon glycols such as ethylene glycol(EG) and propylene glycol(PG).The results indicated that tungsten modified NiB amorphous alloy catalyst (NiWB) and the tungsten species interacted intimately with NiB alloy.It presented better catalytic performance in glucose hydrogenolysis compared with NiMoB.The yields of EG and 1,2-PG were 37.0% and 11.3% on NiWB,while 6.6% and 8.9% on NiMoB. NiWB,which possesses active sites for both hydrogenation and bond breakage,is a promising novel catalyst for the conversion of biomass and/or biomass derivatives into value-added chemicals.

Key words: NiB, amorphous alloy, modification, glucose hydrogenolysis, low carbon glycols

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