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题名: Nitrogen-incorporated SAPO-11 molecular sieve: Synthesis, characterization, and properties
作者: Xiong, JM;  Ding, YJ;  Zhu, HJ;  Yan, L;  Liu, XM;  Lin, LW
刊名: JOURNAL OF PHYSICAL CHEMISTRY B
发表日期: 2003-02-13
DOI: 10.1021/jp020815p
卷: 107, 期:6, 页:1366-1369
收录类别: SCI
文章类型: Article
WOS标题词: Science & Technology ;  Physical Sciences
类目[WOS]: Chemistry, Physical
研究领域[WOS]: Chemistry
英文摘要: Nitrogen-incorporated SAPO-11 molecular sieves were synthesized by a secondary synthesis technique at low nitridation temperature (400degreesC) with a starting material of SAPO-11 zeolite doped with 2 wt % Ru. The obtained powder samples showed high activity in Knoevenagel condensation, which acts as a probing reaction for base catalysis. The changes in structure of the nitrogen-incorporated samples were investigated by means of (27)Al-MAS NMR and (31)P-MAS NMR spectra, X-ray diffraction, and BET surface area measurements. It was found that nitrogen-containing species had incorporated into the framework of SAPO-11 zeolite, in which some N atoms directly bonded to Al and P atoms and formed AlN(4), AlN(2)O(2), and PN(4) groups. These species with terminal-NH(2) groups on the surface together were responsible for the basicity of nitrogen-incorporated SAPO-11 zeolite.
关键词[WOS]: ALUMINOPHOSPHATE OXYNITRIDE ALPON ;  ANGLE-SPINNING NMR ;  AL-27 NMR ;  SURFACE HYDROLYSIS ;  DOUBLE-ROTATION ;  BASE CATALYSTS ;  ALUMINUM ;  ZEOLITES ;  SPECTROSCOPY ;  FRAMEWORK
语种: 英语
WOS记录号: WOS:000182533600012
Citation statistics: 
内容类型: 期刊论文
URI标识: http://cas-ir.dicp.ac.cn/handle/321008/139251
Appears in Collections:中国科学院大连化学物理研究所_期刊论文

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作者单位: 1.Chinese Acad Sci, Nat Gas Utilizat & Appl Catalysis Lab, Dalian 116023, Peoples R China
2.Chinese Acad Sci, State Key Lab Catalysis, Dalian 116023, Peoples R China
3.Chinese Acad Sci, Dalian Inst Chem & Phys, Dalian 116023, Peoples R China

Recommended Citation:
Xiong, JM,Ding, YJ,Zhu, HJ,et al. Nitrogen-incorporated SAPO-11 molecular sieve: Synthesis, characterization, and properties[J]. JOURNAL OF PHYSICAL CHEMISTRY B,2003,107(6):1366-1369.
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