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题名: High-efficiency oxidative esterification of furfural to methylfuroate with a non-precious metal Co-N-C/MgO catalyst
作者: Huo, Na1, 2;  Ma, Hong2;  Wang, Xinhong1;  Wang, Tianlong1, 2;  Wang, Gang1, 2;  Wang, Ting1, 2;  Hou, Leilei1, 2;  Gao, Jin2;  Xu, Jie2
关键词: Catalysis ;  Cobalt-nitrogen-doped carbon ;  Furfural ;  Methylfuroate ;  MgO ;  Oxidative esterification
刊名: CHINESE JOURNAL OF CATALYSIS
发表日期: 2017-07-01
DOI: 10.1016/S1872-2067(17)62841-9
卷: 38, 期:7, 页:1148-1154
收录类别: SCI
文章类型: Article
WOS标题词: Science & Technology ;  Physical Sciences ;  Technology
类目[WOS]: Chemistry, Applied ;  Chemistry, Physical ;  Engineering, Chemical
研究领域[WOS]: Chemistry ;  Engineering
英文摘要: From both fundamental and practical perspectives, the production of chemicals from biomass resources using high-efficiency non-precious metal catalysts is important. However, many processes require addition of stoichiometric or excess quantities of base, which leads to high energy consumption, leaching problems, and side reactions. In this study, we investigated the high-efficiency oxidative esterification of furfural to methylfuroate by molecular oxygen with a Co-N-C/MgO catalyst. The catalyst was prepared by direct pyrolysis of a cobalt(II) phenanthroline complex on MgO at 800 degrees C under N-2 atmosphere. From furfural, 93.0% conversion and 98.5% selectivity toward methylfuroate were achieved under 0.5 MPa O-2 with reaction at 100 degrees C for 12 h without a basic additive. The conversion and selectivity were much higher than those obtained with cobalt catalysts produced by pyrolysis of a cobalt(II) phenanthroline complex on activated carbon or typical basic supports, including NaX, NaY, and CaO. X-ray photoelectron spectroscopy, X-ray diffraction, transmission electron microscopy, and experimental results revealed that the high efficiency of Co-N-C/MgO for production of methylfuroate was closely related to the cobalt-nitrogen-doped carbon species and its catalytic ability in hydrogen abstraction. In contrast, Co-N-C(HCl) that synthesized by removing MgO with HCl from Co-N-C/MgO, as the catalyst produced mainly an acetal as a condensation product, and chloride ions had a negative effect on the oxidative esterification. Although the catalytic performance of the cobalt-nitrogen-doped carbon species was greatly affected by HCl treatment, it could be recovered to a great extent by addition of MgO. Moreover, changes in the oxygen pressure hardly affected the oxidative esterification of furfural with Co-N-C/MgO. This study not only provides an effective approach to prepare methylfuroate, but also for designing high-performance non-precious metal catalysts for the oxidative esterification of biomass-derived compounds. (C) 2017, Dalian Institute of Chemical Physics, Chinese Academy of Sciences. Published by Elsevier B.V. All rights reserved.
关键词[WOS]: OXYGEN REDUCTION REACTION ;  DOPED CARBON ELECTROCATALYSTS ;  AEROBIC OXIDATION ;  MILD CONDITIONS ;  SELECTIVE OXIDATION ;  PROMISING PLATFORM ;  MOLECULAR-OXYGEN ;  PERFORMANCE ;  CHEMICALS ;  ACID
语种: 英语
WOS记录号: WOS:000405979100006
Citation statistics: 
内容类型: 期刊论文
URI标识: http://cas-ir.dicp.ac.cn/handle/321008/152032
Appears in Collections:中国科学院大连化学物理研究所_期刊论文

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作者单位: 1.Dalian Polytech Univ, Sch Text & Mat Engn, Dalian 116034, Liaoning, Peoples R China
2.Chinese Acad Sci, Dalian Inst Chem Phys, Dalian Natl Lab Clean Energy, State Key Lab Catalysis, Dalian 116023, Liaoning, Peoples R China

Recommended Citation:
Huo, Na,Ma, Hong,Wang, Xinhong,et al. High-efficiency oxidative esterification of furfural to methylfuroate with a non-precious metal Co-N-C/MgO catalyst[J]. CHINESE JOURNAL OF CATALYSIS,2017,38(7):1148-1154.
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