典型文献
Scission of C-O and C-C linkages in lignin over RuRe alloy catalyst
文献摘要：
The performance of lignin depolymerization is basically determined by the interunit C-O and C-C bonds.Numerous C-O bond cleavage strategies have been developed,while the cleavage of C-C bond between the primary aromatic units remains a challenging task due to the high dissociation energy of C-C bond.Herein,a multifunctional RuRe alloy catalyst was designed,which exhibited exceptional catalytic activity for the cleavage of both C-O and C-C linkages in a broad range of lignin model compounds(β-1,α-5,5-5,β-O-4,4-O-5)and two stubborn lignins(kraft lignin and alkaline lignin),affording 97.5％overall yield of monocyclic compounds from model compounds and up to 129％of the maximum theoretical yield of monocyclic products based on C-O bonds cleavage from realistic lignin.Scanning transmission electron microscopy(STEM)characterization showed that RuRe(1:1)alloy particles with hexagonal close-packed structure were homogeneously dispersed on the support.Quasi-in situ X-ray photoelectron spectroscopy(XPS),and X-ray absorption spectroscopy(XAS)indicate that Ru species were predominantly metallic state,whereas Re species were partially oxidized;meanwhile,there was a strong interaction between Ru and Re,where the electron transfer from Re to Ru was occurred,resulting in great improvement on the capability of C-O and C-C bonds cleavage in lignin conversion.
文献关键词：
中图分类号：
作者姓名：
Xinxin Li;Yangming Ding;Xiaoli Pan;Yanan Xing;Bo Zhang;Xiaoyan Liu;Yuanlong Tan;Hua Wang;Changzhi Li
作者机构：
CAS Key Laboratory of Science and Technology on Applied Catalysis,Dalian Institute of Chemical Physics,Chinese Academy of Sciences,Dalian 116023,Liaoning,China;University of Chinese Academy of Science,Beijing 100049,China
文献出处：
引用格式：
[1]Xinxin Li;Yangming Ding;Xiaoli Pan;Yanan Xing;Bo Zhang;Xiaoyan Liu;Yuanlong Tan;Hua Wang;Changzhi Li-.Scission of C-O and C-C linkages in lignin over RuRe alloy catalyst)[J].能源化学,2022(04):492-499
A类：
Scission,RuRe,interunit,stubborn,kraft
B类：
linkages,alloy,catalyst,performance,depolymerization,basically,determined,by,bonds,Numerous,cleavage,strategies,have,been,developed,between,primary,aromatic,units,remains,challenging,task,due,high,dissociation,energy,Herein,multifunctional,was,designed,which,exhibited,exceptional,catalytic,activity,both,broad,range,model,compounds,two,lignins,alkaline,affording,overall,yield,monocyclic,from,maximum,theoretical,products,realistic,Scanning,transmission,microscopy,STEM,characterization,showed,that,particles,hexagonal,close,packed,structure,were,homogeneously,dispersed,support,Quasi,situ,ray,photoelectron,spectroscopy,XPS,absorption,XAS,indicate,species,predominantly,metallic,state,whereas,partially,oxidized,meanwhile,there,strong,interaction,transfer,occurred,resulting,great,improvement,capability,conversion
AB值：
0.532786
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