Influences of Zn on active state of Sn in Pt-Sn/gamma-Al2O3 catalysts and propane dehydrogenation
文献类型：期刊论文
| 作者 | Yu Chang-Lin; Xu Heng-Yong; Ge Qing-Jie; Li Wen-Zhao |
| 刊名 | chemical journal of chinese universities-chinese
 |
| 出版日期 | 2006-08-10 |
| 卷号 | 27期号:8页码:1492-1495 |
| 关键词 | propane dehydrogenation zinc platinum and tin temperature-programmed reduction temperature-programmed electronic conductivity |
| 英文摘要 | the effect of zn addition to pt-sn/gamma-al2o3 catalyst on the activity and selectivity in the reaction of propane dehydrogenation was studied. the results show that the addition of zn to pt-sn/gamma-al2o3 catalyst can greatly improve the performance of pt-sn/gamma-al2o1 for propane dehydrogenation. the initial conversion of propane increased from 34% to 42% and initial selectivity to propene increased from 80% to 98%. at the same time, the presence of zn greatly reduced the deactivation rate. the studies of temperature-programmed reduction of hydrogen( h-2-tpr) and temperature-programmed electronic conductivity (tpec) show that the addition, of zn to pt-sn/gamma-al2o3 made the reduction of sri become more difficult. this may suggest that the presence of zn can stabilize tin promoter in an active oxidation state and prevent the formation of ptsn alloy in strong reduction atmosphere, which may be responsible for the high stability and selectivity for pt-zn-sn/gamma-al2o3 catalyst in dehydrogenation.. |
| WOS标题词 | science & technology ; physical sciences |
| 类目[WOS] | chemistry, multidisciplinary |
| 研究领域[WOS] | chemistry |
| 关键词[WOS] | tin reforming catalysts ; ptsn catalysts ; platinum ; selectivity |
| 收录类别 | SCI |
| 语种 | 英语 |
| WOS记录号 | WOS:000239983300025 |
| 公开日期 | 2015-11-17 |
| 源URL | [http://159.226.238.44/handle/321008/140037]  |
| 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.Chinese Acad Sci, Dalian Inst Chem Phys, Lab Nat Gas Utilizat & Appl Catalysis, Dalian 116023, Peoples R China 2.Chinese Acad Sci, Grad Sch, Beijing 100039, Peoples R China |
| 推荐引用方式 GB/T 7714 | Yu Chang-Lin,Xu Heng-Yong,Ge Qing-Jie,et al. Influences of Zn on active state of Sn in Pt-Sn/gamma-Al2O3 catalysts and propane dehydrogenation[J]. chemical journal of chinese universities-chinese,2006,27(8):1492-1495. |
| APA | Yu Chang-Lin,Xu Heng-Yong,Ge Qing-Jie,&Li Wen-Zhao.(2006).Influences of Zn on active state of Sn in Pt-Sn/gamma-Al2O3 catalysts and propane dehydrogenation.chemical journal of chinese universities-chinese,27(8),1492-1495. |
| MLA | Yu Chang-Lin,et al."Influences of Zn on active state of Sn in Pt-Sn/gamma-Al2O3 catalysts and propane dehydrogenation".chemical journal of chinese universities-chinese 27.8(2006):1492-1495. |
入库方式： OAI收割
来源：大连化学物理研究所
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