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学科主题物理化学
Lignin depolymerization (LDP) in alcohol over nickel-based catalysts via a fragmentation-hydrogenolysis process
Song, Qi1,2; Wang, Feng1; Cai, Jiaying1,2; Wang, Yehong1; Zhang, Junjie1,2; Yu, Weiqiang1; Xu, Jie1; Xu J(徐杰); Wang F(王峰)
刊名ENERGY & ENVIRONMENTAL SCIENCE
2013-03-01
DOI10.1039/c2ee23741e
6期:3页:994-1007
收录类别SCI
合作性质
文章类型Article
部门归属DNL06
项目归属DNL0601
产权排名待补充
WOS标题词Science & Technology ; Physical Sciences ; Technology ; Life Sciences & Biomedicine
资助者1,1 ; 1,1 ; 1,1 ; 1,1
类目[WOS]Chemistry, Multidisciplinary ; Energy & Fuels ; Engineering, Chemical ; Environmental Sciences
研究领域[WOS]Chemistry ; Energy & Fuels ; Engineering ; Environmental Sciences & Ecology
关键词[WOS]O BOND-CLEAVAGE ; DEUTERIUM-EXCHANGE-REACTIONS ; OXYGEN-MEDIATED DEGRADATION ; STEAM-EXPLODED LIGNIN ; MODEL COMPOUNDS ; PALLADIUM CATALYSTS ; OXIDATION-PRODUCTS ; ISOTOPE-EXCHANGE ; HARDWOOD LIGNIN ; H/D EXCHANGE
英文摘要Valorization of native birch wood lignin into monomeric phenols over nickel-based catalysts has been studied. High chemoselectivity to aromatic products was achieved by using Ni-based catalysts and common alcohols as solvents. The results show that lignin can be selectively cleaved into propylguaiacol and propylsyringol with total selectivity >90% at a lignin conversion of about 50%. Alcohols, such as methanol, ethanol and ethylene glycol, are suitable solvents for lignin conversion. Analyses with MALDI-TOF and NMR show that birch lignin is first fragmented into smaller lignin species consisting of several benzene rings with a molecular weight of m/z ca. 1100 to ca. 1600 via alcoholysis reaction. The second step involves the hydrogenolysis of the fragments into phenols. The presence of gaseous H-2 has no effect on lignin conversion, indicating that alcohols provide active hydrogen species, which is further confirmed by isotopic tracing experiments. Catalysts are recycled by magnetic separation and can be reused four times without losing activity. The mechanistic insights from this work could be helpful in understanding native lignin conversion and the formation of monomeric phenolics via reductive depolymerization.
语种英语
资助者1,1 ; 1,1 ; 1,1 ; 1,1
原文出处查看原文
WOS记录号WOS:000315165700036
引用统计
被引频次:334[WOS]   [WOS记录]     [WOS相关记录]
文献类型期刊论文
条目标识符http://cas-ir.dicp.ac.cn/handle/321008/119313
专题中国科学院大连化学物理研究所
通讯作者Xu J(徐杰); Wang F(王峰)
作者单位1.Chinese Acad Sci, Dalian Inst Chem Phys, Dalian Natl Lab Clean Energy, State Key Lab Catalysis, Dalian 116023, Peoples R China
2.Chinese Acad Sci, Grad Univ, Beijing 100049, Peoples R China
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GB/T 7714
Song, Qi,Wang, Feng,Cai, Jiaying,et al. Lignin depolymerization (LDP) in alcohol over nickel-based catalysts via a fragmentation-hydrogenolysis process[J]. ENERGY & ENVIRONMENTAL SCIENCE,2013,6(3):994-1007.
APA Song, Qi.,Wang, Feng.,Cai, Jiaying.,Wang, Yehong.,Zhang, Junjie.,...&王峰.(2013).Lignin depolymerization (LDP) in alcohol over nickel-based catalysts via a fragmentation-hydrogenolysis process.ENERGY & ENVIRONMENTAL SCIENCE,6(3),994-1007.
MLA Song, Qi,et al."Lignin depolymerization (LDP) in alcohol over nickel-based catalysts via a fragmentation-hydrogenolysis process".ENERGY & ENVIRONMENTAL SCIENCE 6.3(2013):994-1007.
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