Structural studies of fe doped bi2mo3o12 catalysts using neutron and x-ray powder diffraction
文献类型：期刊论文
| 作者 | Cheng, Y. Z.1,2; Wu, M. M.1; Peng, J.1; Xiao, X. L.1; Li, Z. X.1; Hu, Z. B.1; Kiyanagi, R.3; Fieramosca, J. S.3; Short, S.3 |
| 刊名 | Materials technology
 |
| 出版日期 | 2008-03-01 |
| 卷号 | 23期号:1页码:33-38 |
| 关键词 | Bismuth molybdate Iron Neutron powder diffraction Structure refinement |
| ISSN号 | 1066-7857 |
| DOI | 10.1179/175355508x266935 |
| 通讯作者 | Hu, z. b.(huzq@gucas.ac.cn) |
| 英文摘要 | The fe doped bi2mo3o12 catalysts bi1.94fe0.06mo3o12 and bi1.80fe0.20mo3o12 have been successfully prepared, and their structures have been investigated by using neutron powder diffraction. rietveld analyses indicate that fe atoms prefer to take the scheelite vacancies (site c) and the existence of fe in site c would induce bi vacancies in adjacent site b synchronously. thus disordered bi vacancies could promote catalytic reaction by accelerating the abstraction of alpha-h from alkene and the transfer of lattice oxygen in crystal structure. decreases in cell volumes are observed as fe doping in crystal structures, and this should be induced by the overall decreases in bond lengths and interatomic distances. calculations of bond valence reveal the possible existence of fe(ii) which should improve the catalytic performance of fe-bi-mo-o catalyst compared with pure bi2mo3o12 compound. |
| WOS关键词 | BISMUTH MOLYBDATE CATALYST ; CRYSTAL-STRUCTURE ; SELECTIVE OXIDATION ; AMMOXIDATION ; PROPYLENE ; ALPHA-BI2MO3O12 ; PARAMETERS ; BI2(MOO4)3 ; MECHANISM ; PROPENE |
| WOS研究方向 | Materials Science |
| WOS类目 | Materials Science, Multidisciplinary |
| 语种 | 英语 |
| WOS记录号 | WOS:000258090300007 |
| 出版者 | MANEY PUBLISHING |
| URI标识 | http://www.irgrid.ac.cn/handle/1471x/2392435 |
| 专题 | 中国科学院大学 |
| 通讯作者 | Hu, Z. B. |
| 作者单位 | 1.Chinese Acad Sci, Grad Univ, Coll Chem & Chem Engn, Beijing 100049, Peoples R China 2.Shandong Univ Technol, Coll Chem Engn, Zibo 255049, Peoples R China 3.Argonne Natl Lab, INPS MSD, Argonne, IL 60439 USA |
| 推荐引用方式 GB/T 7714 | Cheng, Y. Z.,Wu, M. M.,Peng, J.,et al. Structural studies of fe doped bi2mo3o12 catalysts using neutron and x-ray powder diffraction[J]. Materials technology,2008,23(1):33-38. |
| APA | Cheng, Y. Z..,Wu, M. M..,Peng, J..,Xiao, X. L..,Li, Z. X..,...&Short, S..(2008).Structural studies of fe doped bi2mo3o12 catalysts using neutron and x-ray powder diffraction.Materials technology,23(1),33-38. |
| MLA | Cheng, Y. Z.,et al."Structural studies of fe doped bi2mo3o12 catalysts using neutron and x-ray powder diffraction".Materials technology 23.1(2008):33-38. |
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来源：中国科学院大学
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