Study of the Reducing and Sulfiding Process of Mo-Supported Catalyst by in situ LRS
文献类型：期刊论文
| 作者 | Wei Zhaobin; Wei Chengdong; Xin Qin |
| 刊名 | acta physico-chimica sinica
 |
| 出版日期 | 1994 |
| 卷号 | 10期号:5页码:402-408 |
| 关键词 | In situ LRS Reduction Sulfidation Mo/Al2O3 Mo:TiO2-Al2O3 |
| 英文摘要 | in this paper the changes of mo species of mo/al2o3 and mo/tio2-al2o3 catalysts in reducing and sulfiding process have been studied by in situ lr spectroscopic technique. the results show: (1) the reducibility of various mo species in mo/al2o3 is different.the bands of octahedral mo species and their polymer at 215 and 971 cm(-1) disappeared first at 100 degrees c, and then crystalline moo3 at 820 cm(-1) at below 300 degrees c in h-2. the bands of al-2(moo4)(3) phase at 377 and 1003 cm(-1) disappeared at 400 degrees c. polymer of octahedral mo species at 961 cm(-1) and crystalline moo3 at 289, 666, 816 and 994 cm(-1) exist in mo/tio2-al2o3 catalysts. the former was reduced at lower temperatures than the latter. (2) when h2s-h-2 flowed into sample cell at room temperature, the bands of oxidic mo/al2o3 disapeared, and simultaneously, the bands of mos2 at 377, 401 cm(-1) and complicated molybdenum oxysulfide at 325, 348, 450, 540 cm(-1) emerged. after sulfiding at 400 degrees c, only mos2 phase exists. for mo/tio2-al2o3, the bands of mo and tio2 disappeared upon sulfiding of a sample at room temperature, and the bands of mos2 at 375 and 398 cm(-1) emerged. this reveals that modification of the al2o3 surface by tio2 strongly enhances the sulfiding of mo supported catalysts |
| WOS标题词 | science & technology ; physical sciences |
| 类目[WOS] | chemistry, physical |
| 研究领域[WOS] | chemistry |
| 收录类别 | SCI |
| 语种 | 英语 |
| WOS记录号 | WOS:000207589200006 |
| 公开日期 | 2015-11-17 |
| 源URL | [http://159.226.238.44/handle/321008/141171]  |
| 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 | Wei Zhaobin,Wei Chengdong,Xin Qin. Study of the Reducing and Sulfiding Process of Mo-Supported Catalyst by in situ LRS[J]. acta physico-chimica sinica,1994,10(5):402-408. |
| APA | Wei Zhaobin,Wei Chengdong,&Xin Qin.(1994).Study of the Reducing and Sulfiding Process of Mo-Supported Catalyst by in situ LRS.acta physico-chimica sinica,10(5),402-408. |
| MLA | Wei Zhaobin,et al."Study of the Reducing and Sulfiding Process of Mo-Supported Catalyst by in situ LRS".acta physico-chimica sinica 10.5(1994):402-408. |
入库方式： OAI收割
来源：大连化学物理研究所
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