Effect of extra-framework gallium on the structure of iron species in Fe/ZSM-5
文献类型：期刊论文
| 作者 | Xia, Haian1,2; Sun, Keqiang1; Fan, Fengtao1,2; Sun, Keju1,2; Su, Weiguang1,2; Feng, Zhaochi1; Ying, Pinliang1; Li, Can1 |
| 刊名 | journal of catalysis
 |
| 出版日期 | 2008-10-25 |
| 卷号 | 259期号:2页码:269-275 |
| 关键词 | Raman spectroscopy N2O decomposition Transient response Extra-framework Ga Isolated Bi-nuclear Oligo-nuclear |
| 英文摘要 | a series of fe/ga-zsm-5 catalysts with different ga contents were prepared by solid-state ion exchange method. ultraviolet and visible raman spectroscopy, ultraviolet-visible diffuse reflectance spectroscopy, h-2-temperature-programmed reduction, and n2o decomposition at 523 k were used to investigate the effect of extra-framework ga on the nature of the fe species in fe/ga-zsm-5 catalysts. introducing extra-framework ga and high-temperature treatment can significantly affect the distribution even the nature of the fe species in fe/ga-zsm-5. for the high-temperature treated catalysts, the presence of extra-framework ga remarkably increases the amount of the fe(ii) sites and the activity of direct n2o decomposition, suggesting that extra-framework ga can promote the formation of the active sites for n2o decomposition. the possible interpretation of the beneficial role of extra-framework ga is that extra-framework ga facilitates the reduction of bi- and oligo-nuclear fe(iii) sites to form the fe(ii) sites and interacts with the fe sites with low nuclearity to form a mixed fe-ga-o phase for the high-temperature treated catalysts. (c) 2008 elsevier inc. all rights reserved. |
| WOS标题词 | science & technology ; physical sciences ; technology |
| 类目[WOS] | chemistry, physical ; engineering, chemical |
| 研究领域[WOS] | chemistry ; engineering |
| 关键词[WOS] | nitrous-oxide decomposition ; selective catalytic-reduction ; high-temperature treatment ; chemical-vapor-deposition ; n2o decomposition ; active-sites ; benzene hydroxylation ; nox reduction ; mfi zeolites ; mossbauer-spectroscopy |
| 收录类别 | SCI |
| 语种 | 英语 |
| WOS记录号 | WOS:000260978000013 |
| 公开日期 | 2015-11-17 |
| 源URL | [http://159.226.238.44/handle/321008/140829]  |
| 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, State Key Lab 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 | Xia, Haian,Sun, Keqiang,Fan, Fengtao,et al. Effect of extra-framework gallium on the structure of iron species in Fe/ZSM-5[J]. journal of catalysis,2008,259(2):269-275. |
| APA | Xia, Haian.,Sun, Keqiang.,Fan, Fengtao.,Sun, Keju.,Su, Weiguang.,...&Li, Can.(2008).Effect of extra-framework gallium on the structure of iron species in Fe/ZSM-5.journal of catalysis,259(2),269-275. |
| MLA | Xia, Haian,et al."Effect of extra-framework gallium on the structure of iron species in Fe/ZSM-5".journal of catalysis 259.2(2008):269-275. |
入库方式： OAI收割
来源：大连化学物理研究所
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