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Characterization of metal-containing molecular sieves and their catalytic properties in the selective oxidation of cyclohexane
Tian, P; Liu, ZM; Wu, ZB; Xu, L; He, YL
KeywordMetal-containing Molecular Sieve Microporous Aluminophosphate Characterization Cyclohexane Oxidation
Source PublicationCATALYSIS TODAY
2004-09-01
DOI10.1016/j.cattod.2004.06.100
Volume93-5Issue:93—95Pages:735-742
Indexed ByISTP ; SCI
SubtypeArticle
Funding Project803
Contribution Rank1;1
WOS HeadingsScience & Technology ; Physical Sciences ; Technology
WOS SubjectChemistry, Applied ; Chemistry, Physical ; Engineering, Chemical
WOS Research AreaChemistry ; Engineering
WOS KeywordLIQUID-PHASE OXIDATION ; ADIPIC ACID ; COBALT ; ALUMINOPHOSPHATE ; HYDROCARBONS ; ENVIRONMENTS ; COAPO-5 ; CENTERS ; IONS ; AIR
AbstractThree types of metal-containing molecular sieves with AFI, AEL and CHA structures (Me = Co, Mn, Cr and V) were synthesized hydrothermally and characterized by XRD, XRF, TG, TPR, NH3-TPD and FT-IR. It was revealed that metals were incorporated into the framework of molecular sieves and induced the presence of charge centers. Both cobalt and manganese in the framework of AIPO-5, AlPO-11 and SAPO-34 were not reducible before the structure collapse. The redox behaviours of these catalysts in cyclohexane oxidation at 403 K using O-2 as oxidant were examined. CoAPO-11 exhibited best activity and good selectivities for the monofunctional oxidation products (88.5%). Cyclohexanol was the major product over most catalysts, whereas for Cr-containing molecular sieves, high selectivity of cyclohexanone was observed. Investigation of reaction mechanism based on CoAPO-11 and CrAPO-5 catalysts indicated that the decomposition of cyclohexyl hydroperoxide (CHHP), the intermediate in cyclohexane oxidation, followed the pathway: cyclohexanone <-- CHHP --> cyclohexanol -->cyclohexanone. (C) 2004 Elsevier B.V. All rights reserved.
Language英语
URL查看原文
WOS IDWOS:000223973200106
Citation statistics
Cited Times:56[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://cas-ir.dicp.ac.cn/handle/321008/81817
Collection中国科学院大连化学物理研究所
AffiliationChinese Acad Sci, Dalian Inst Chem Phys, Nat Gas Utilizat Catalysis Lab, Dalian 116023, Peoples R China
Recommended Citation
GB/T 7714
Tian, P,Liu, ZM,Wu, ZB,et al. Characterization of metal-containing molecular sieves and their catalytic properties in the selective oxidation of cyclohexane[J]. CATALYSIS TODAY,2004,93-5(93—95):735-742.
APA Tian, P,Liu, ZM,Wu, ZB,Xu, L,&He, YL.(2004).Characterization of metal-containing molecular sieves and their catalytic properties in the selective oxidation of cyclohexane.CATALYSIS TODAY,93-5(93—95),735-742.
MLA Tian, P,et al."Characterization of metal-containing molecular sieves and their catalytic properties in the selective oxidation of cyclohexane".CATALYSIS TODAY 93-5.93—95(2004):735-742.
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