Characterization of metal-containing molecular sieves and their catalytic properties in the selective oxidation of cyclohexane

	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
刊名	catalysis today
	2004-09-01
卷号	93-5 期号:93—95 页码:735-742
关键词	metal-containing molecular sieve microporous aluminophosphate characterization cyclohexane oxidation
产权排序	1;1
英文摘要	three 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.
WOS标题词	science & technology ; physical sciences ; technology
类目[WOS]	chemistry, applied ; chemistry, physical ; engineering, chemical
研究领域[WOS]	chemistry ; engineering
关键词[WOS]	liquid-phase oxidation ; adipic acid ; cobalt ; aluminophosphate ; hydrocarbons ; environments ; coapo-5 ; centers ; ions ; air
收录类别	ISTP ; SCI
原文出处	true
语种	英语
WOS记录号	WOS:000223973200106
公开日期	2010-11-30
内容类型	期刊论文
源URL	[http://159.226.238.44/handle/321008/81817]
专题	大连化学物理研究所_中国科学院大连化学物理研究所
作者单位	Chinese Acad Sci, Dalian Inst Chem Phys, Nat Gas Utilizat Catalysis Lab, Dalian 116023, Peoples R China
推荐引用方式 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.