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Acidity Characterization of HZSM-35 Zeolite by Solid-State NMR
Liu Yong1,2; Zhang Weiping1; Xie Sujuan1; Xu Longya1; Han Xiuwen1; Bao Xinhe1
关键词Hzsm-35 Zeolite Acidity Solid-state Nuclear Magnetic Resonance Probe Molecule Trimethylphosphine Deuterated Pyridine
刊名CHINESE JOURNAL OF CATALYSIS
2009-02-01
30期:2页:119-123
收录类别SCI
文章类型Article
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]SKELETAL ISOMERIZATION ; PROBE MOLECULE ; H-FERRIERITE ; N-BUTENE ; SITES ; SPECTROSCOPY ; TRIMETHYLPHOSPHINE
英文摘要The accessibility and acidity of HZSM-35 zeolite were studied by high-resolution solid-state MAS NMR spectroscopy after adsorption of deuterated pyridine or trimethylphosphine as probe molecules. The results showed that the probe molecules could enter both the ten-membered ring (10-MR) channels and eight-membered ring (8-MR) cavities. However, the diffusion into the 8-MR cavities was very slow and it took a long time to reach the adsorption equilibrium at 300 degrees C. After adsorption of deuterated pyridine, (1)H MAS NMR spectra showed that there were two types of Bronsted acidic sites with different strength in both the 10-MR channels and 8-MR cavities. After adsorption of trimethylphosphine, the (31)P MAS NMR spectra indicated that there were Lewis acidic sites in HZSM-35 zeolite, but their strength and amount were less than the Bronsted acidic sites.
语种英语
WOS记录号WOS:000264168700008
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被引频次:4[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/321008/141448
专题中国科学院大连化学物理研究所
作者单位1.Chinese Acad Sci, Dalian Inst Chem Phys, State Key Lab Catalysis, Dalian 116023, Liaoning, Peoples R China
2.Chinese Acad Sci, Grad Univ, Beijing 100049, Peoples R China
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Liu Yong,Zhang Weiping,Xie Sujuan,et al. Acidity Characterization of HZSM-35 Zeolite by Solid-State NMR[J]. CHINESE JOURNAL OF CATALYSIS,2009,30(2):119-123.
APA Liu Yong,Zhang Weiping,Xie Sujuan,Xu Longya,Han Xiuwen,&Bao Xinhe.(2009).Acidity Characterization of HZSM-35 Zeolite by Solid-State NMR.CHINESE JOURNAL OF CATALYSIS,30(2),119-123.
MLA Liu Yong,et al."Acidity Characterization of HZSM-35 Zeolite by Solid-State NMR".CHINESE JOURNAL OF CATALYSIS 30.2(2009):119-123.
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