Remarkable improvement on the methane aromatization reaction: A highly selective and coking-resistant catalyst | |
Ma, D; Lu, Y; Su, LL; Xu, ZS; Tian, ZJ; Xu, Y; Lin, LW; Bao, XH | |
刊名 | journal of physical chemistry b |
2002-08-29 | |
卷号 | 106期号:34页码:8524-8530 |
英文摘要 | an effective way (without addition of any oxidative gases to the reactant) to suppress coke formation (by modification of the mo/hzsm-5 catalyst) and thus to significantly improve the aromatic selectivity in the methane aromatization reaction is presented in this study. a greater yield of benzene and an enhanced durability of the catalyst when compared with the conventional mo/hzsm-5 catalysts are observed. multinuclear solid-state nmr, tpd, tpo, tg, and uv-raman methods are applied to characterize and rationalize the structure-property relationship of the improved catalytic performance of the modified catalysts. from this work, we found that only a small fraction of tetrahedral framework aluminum, which corresponds to the bronsted acid sites, is sufficient to accomplish the aromatization of the intermediates in methane aromatization reaction, while the superfluous strong bronsted acid sites, which can be removed upon steaming treatment, are shown to be related with the aromatic carbonaceous deposits on the catalysts. |
WOS标题词 | science & technology ; physical sciences |
类目[WOS] | chemistry, physical |
研究领域[WOS] | chemistry |
关键词[WOS] | mo-based catalysts ; mo/hzsm-5 catalysts ; nonoxidative conversion ; zeolite catalysts ; hzsm-5 zeolites ; acid sites ; mas nmr ; benzene ; dealumination ; spectroscopy |
收录类别 | SCI |
语种 | 英语 |
WOS记录号 | WOS:000177705200007 |
公开日期 | 2015-11-10 |
内容类型 | 期刊论文 |
源URL | [http://159.226.238.44/handle/321008/139109] |
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 | 1.Acad Sinica, Dalian Inst Chem Phys, State Key Lab Catalysis, Dalian 116023, Peoples R China 2.Chinese Acad Sci, Dalian Inst Chem Phys, Dalian 116023, Peoples R China |
推荐引用方式 GB/T 7714 | Ma, D,Lu, Y,Su, LL,et al. Remarkable improvement on the methane aromatization reaction: A highly selective and coking-resistant catalyst[J]. journal of physical chemistry b,2002,106(34):8524-8530. |
APA | Ma, D.,Lu, Y.,Su, LL.,Xu, ZS.,Tian, ZJ.,...&Bao, XH.(2002).Remarkable improvement on the methane aromatization reaction: A highly selective and coking-resistant catalyst.journal of physical chemistry b,106(34),8524-8530. |
MLA | Ma, D,et al."Remarkable improvement on the methane aromatization reaction: A highly selective and coking-resistant catalyst".journal of physical chemistry b 106.34(2002):8524-8530. |
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