催化学报 ›› 2013, Vol. 34 ›› Issue (5): 993-1001.DOI: 10.1016/S1872-2067(11)60522-6

• 研究论文 • 上一篇    下一篇

碳纳米管担载纳米Ir催化生物质基乙酰丙酸合成γ-戊内酯

杜贤龙a,b, 刘永梅a, 王建强b, 曹勇a, 范康年a   

  1. a 复旦大学化学系, 上海市分子催化和功能材料重点实验室, 上海 200433;
    b 中国科学院上海应用物理研究所, 上海 201800
  • 收稿日期:2012-11-17 修回日期:2013-05-20 出版日期:2013-05-06 发布日期:2013-05-06
  • 通讯作者: 曹勇
  • 基金资助:

    国家自然科学基金(21273044);新世纪优秀人才支持计划(NCET-09-0305);上海市科委项目(08DZ2270500).

Catalytic conversion of biomass-derived levulinic acid into ?-valerolactone using iridium nanoparticles supported on carbon nanotubes

DU Xianlonga,b, LIU Yongmeia, WANG Jianqiangb, CAO Yonga, FAN Kangniana   

  1. a Department of Chemistry and Shanghai Key Laboratory of Molecular Catalysis and Innovative Materials, Fudan University, Shanghai 200433, China;
    b Shanghai Institute of Applied Physics, Chinese Academy of Sciences, Shanghai 201800, China
  • Received:2012-11-17 Revised:2013-05-20 Online:2013-05-06 Published:2013-05-06
  • Supported by:

    This work was supported by the National Natural Science Foundation of China (21273044)), the Program for New Century Excellent Talents in University (NCET-09-0305), and Science & Technology Commission of Shanghai Municipality (08DZ2270 500).

摘要:

以碳纳米管(CNTs)担载Ir纳米粒子为催化剂进行生物质基平台化合物乙酰丙酸(LA)选择加氢制备γ-戊内酯(GVL)的研究,并利用X射线衍射、X射线光电子能谱和透射电镜表征了使用前后的Ir/CNT催化剂,探讨了影响LA催化加氢制GVL反应性能的因素和该反应的可能路径.结果表明,与Ru,Rh和Pd等传统铂族金属相比,Ir/CNT催化剂不但可在温和条件下(50℃,2.0 MPa,H2)实现LA至GVL的完全转化,且可对多类直接源于生物质水解的含等量LA/甲酸的“真实”体系实现GVL的高效选择合成.

关键词: 生物质, 乙酰丙酸, γ-戊内酯, 加氢, 铱, 碳纳米管

Abstract:

A new method has been developed for the catalytic conversion of biomass-derived levulinic acid (LA) into γ-valerolactone (GVL) with molecular hydrogen (H2) using a series of heterogeneous noble metal catalysts. Excellent yields of the GVL were obtained under mild reaction conditions of 50℃ and 2 MPa of H2 using iridium nanoparticles supported on carbon nanotubes (Ir/CNT). It is noteworthy that the reaction proceeded smoothly in the presence of formic acid (FA, co-produced with LA in equimolar amounts during the acid-mediated hydrolysis of lignocellulosic biomass). Furthermore, the FA remained intact, highlighting the practical advantages of this process for the convenient and cost-effective processing of a biomass-derived LA/FA solution. The method is effective for the simultaneous production of GVL and FA from a wide variety of renewable biomass resources.

Key words: Biomass, Levilinic acid, γ-valerolactone, Hydrogenation, Iridium, Carbon nanotube