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Conversion of lignin model compounds under mild conditions in pseudo-homogeneous systems
Chen, Lu; Xin, Jiayu; Ni, Lingli; Dong, Huixian; Yan, Dongxia; Lu, Xingmei; Zhang, Suojiang
2016
发表期刊GREEN CHEMISTRY
ISSN1463-9262
卷号18期号:8页码:2341-2352
摘要To produce basic chemicals from lignin, depolymerization and removal of oxygen from lignin through C-O cleavage and hydrodeoxygenation (HDO) are crucial steps. In this study, a novel, pseudo-homogeneous catalyst system, consisting of uniformly stabilized noble metal nanoparticles (NPs) in ionic liquids is developed for the selective reductive cleavage of C-O and HDO. Phenol and guaiacol as lignin monomer model compounds are investigated to gain an insight into the possible HDO pathway, meanwhile, dimeric model compounds such as diphenyl ether and benzyl phenyl ether are studied for the cleavage of C-O bonds between aromatic units. Four types of NPs including Pd, Pt, Rh and Ru were synthesized in situ and well distributed in ILs without aggregation. These catalytic systems displayed almost 100% conversion for various monomeric and dimeric lignin model compounds at 130 degrees C and were recycled several times without loss of activity. The catalytic selectivity of metals for HDO/C-O cleavage normally decreases in the order of Pt > Rh similar to Ru >> Pd, which is similar to the order of NP size, Pd >> Pt > Rh similar to Ru. With a mean diameter of 5.6 nm, Pt NPs in [Bmim] PF6 are identified as the best catalytic system for the transformation of lignin monomeric and dimeric model compounds with an almost 100% conversion and maximum 97% selectivity.
文章类型Article
WOS标题词Science & Technology ; Physical Sciences
DOI10.1039/c5gc03121d
收录类别SCI
语种英语
关键词[WOS]IMIDAZOLIUM IONIC LIQUIDS ; TRANSITION-METAL NANOPARTICLES ; HYDROGENATION REACTIONS ; RENEWABLE CHEMICALS ; WOOD LIGNIN ; ADIPIC ACID ; CATALYSTS ; BIOMASS ; HYDRODEOXYGENATION ; SOLUBILITY
WOS研究方向Chemistry
WOS类目Chemistry, Multidisciplinary
项目资助者International S&T Cooperation Program of China(2014DFA61670) ; National Natural Science Foundation of China(21210006 ; External Cooperation Program of BIC, Chinese Academy of Sciences(GJHZ201306) ; 21576269 ; 21276260 ; 21406230)
WOS记录号WOS:000374413300012
引用统计
被引频次:23[WOS]   [WOS记录]     [WOS相关记录]
文献类型期刊论文
条目标识符http://ir.ipe.ac.cn/handle/122111/21008
专题多相复杂系统国家重点实验室
作者单位Chinese Acad Sci, Beijing Key Lab Ion Liquids Clean Proc, Key Lab Green Proc Engn, State Key Lab Multiphase Complex Syst,Inst Proc E, Beijing 100190, Peoples R China
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GB/T 7714
Chen, Lu,Xin, Jiayu,Ni, Lingli,et al. Conversion of lignin model compounds under mild conditions in pseudo-homogeneous systems[J]. GREEN CHEMISTRY,2016,18(8):2341-2352.
APA Chen, Lu.,Xin, Jiayu.,Ni, Lingli.,Dong, Huixian.,Yan, Dongxia.,...&Zhang, Suojiang.(2016).Conversion of lignin model compounds under mild conditions in pseudo-homogeneous systems.GREEN CHEMISTRY,18(8),2341-2352.
MLA Chen, Lu,et al."Conversion of lignin model compounds under mild conditions in pseudo-homogeneous systems".GREEN CHEMISTRY 18.8(2016):2341-2352.
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