Effect of oxygen on aromatization of methane over Mo/HZSM-5 zeolite
文献类型：期刊论文
| 作者 | Yuan, SD; Feng, ZC; Ying, PL; Li, C |
| 刊名 | chinese journal of catalysis
 |
| 出版日期 | 2002-03-01 |
| 卷号 | 23期号:2页码:150-152 |
| 关键词 | laser induced fluorescence spectroscopy molybdenum HZSM-5 zeolite methane aromatization |
| 英文摘要 | the effect of oxygen on aromatization of methane over mo/hzsm-5 zeolite was studied. it was found that there exists a threshold value of the oxygen concentration. the durability of mo/hzsm-5 zeolite in aromatization of methane is greatly improved by the added oxygen when the oxygen concentration is lower than the threshold value; otherwise, the total oxidation of methane takes place. the mo/hzsm-5 samples after aromatization of methane in the presence of oxygen was characterized by uv-raman spectroscopy and laser induced fluorescence spectroscopy (lifs). it was disclosed that the amount of coke, the carburization degree of molybdenum species and the wavelength of a band at 520 similar to 580 nm in the lifs of mo/hzsm-5 zeolite decrease monotenously with the rising of oxygen concentration. it was suggested that the variation of the lifs band with the oxygen concentration originates from the difference in the caburization degree of molybdenum species. the band at similar to580 nm in lifs is tentatively assigned to mooxcy/hzsm-5 and the band at 520 nm to moo3/hzsm-5. so mooxcy/hzsm-5 can be suggested to be the active phase for aromatization of methane over mo/hzsm-5 in the presence of oxygen. |
| 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 |
| 收录类别 | SCI |
| 语种 | 英语 |
| WOS记录号 | WOS:000175026000016 |
| 公开日期 | 2015-11-10 |
| 源URL | [http://159.226.238.44/handle/321008/139146]  |
| 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, State Key Lab Catalysis, Dalian 116023, Peoples R China |
| 推荐引用方式 GB/T 7714 | Yuan, SD,Feng, ZC,Ying, PL,et al. Effect of oxygen on aromatization of methane over Mo/HZSM-5 zeolite[J]. chinese journal of catalysis,2002,23(2):150-152. |
| APA | Yuan, SD,Feng, ZC,Ying, PL,&Li, C.(2002).Effect of oxygen on aromatization of methane over Mo/HZSM-5 zeolite.chinese journal of catalysis,23(2),150-152. |
| MLA | Yuan, SD,et al."Effect of oxygen on aromatization of methane over Mo/HZSM-5 zeolite".chinese journal of catalysis 23.2(2002):150-152. |
入库方式： OAI收割
来源：大连化学物理研究所
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