Evolution of Fe Crystallographic Sites from Barium Hexaaluminate to Hexaferrite
文献类型：期刊论文
| 作者 | Zhu, Yanyan1,2; Wang, Xiaodong1; Wu, Guotao1; Huang, Yanqiang1; Zhang, Yan1,2; Wang, Junhu1; Zhang, Tao1 |
| 刊名 | journal of physical chemistry c
 |
| 出版日期 | 2012-01-12 |
| 卷号 | 116期号:1页码:671-680 |
| 产权排序 | 1,1 |
| 通讯作者 | 王晓东 ; 张涛 |
| 英文摘要 | the substituted metal ions in the hexaaluminate structure are regarded as active centers, but their very limited substituted content prevents the obtainment of higher activity. fe-substituted hexaaluminates exceptionally overcome such a limit. in this paper, we have studied the fe crystallographic sites in bafexal12-xo19 (x = 1-12) and proposed the unique mechanism of stabilization of fe ions in hexaaluminate structure at a high substitution level by employment of rietveld refinement and fe-57 mossbauer spectroscopy. when x = 1-4, the site occupancy of fe3+ in both beta(1)-al2o3 and newly formed magnetoplumbite phases was kept constant, and the increased fe3+ ions were accommodated by the increased amount of magnetoplumbite phase. when x = 5-12, the site occupancy of fe3+ in the magnetoplumbite phase continuously increased, and thus the increased fe3+ ions were accommodated by the magnetoplumbite structure. bafexal12-xo19 catalysts exhibited different n2o decomposition properties under conventional furnace heating and microwave heating modes. |
| WOS标题词 | science & technology ; physical sciences ; technology |
| 学科主题 | 物理化学 |
| 类目[WOS] | chemistry, physical ; nanoscience & nanotechnology ; materials science, multidisciplinary |
| 研究领域[WOS] | chemistry ; science & technology - other topics ; materials science |
| 关键词[WOS] | temperature catalytic combustion ; crystal-structure ; n2o decomposition ; partial oxidation ; beta-alumina ; magnetic-properties ; methane ; mossbauer ; microwave ; reduction |
| 收录类别 | SCI |
| 语种 | 英语 |
| WOS记录号 | WOS:000298978700083 |
| 公开日期 | 2013-10-11 |
| 源URL | [http://159.226.238.44/handle/321008/118252]  |
| 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 Univ, Beijing 100049, Peoples R China |
| 推荐引用方式 GB/T 7714 | Zhu, Yanyan,Wang, Xiaodong,Wu, Guotao,et al. Evolution of Fe Crystallographic Sites from Barium Hexaaluminate to Hexaferrite[J]. journal of physical chemistry c,2012,116(1):671-680. |
| APA | Zhu, Yanyan.,Wang, Xiaodong.,Wu, Guotao.,Huang, Yanqiang.,Zhang, Yan.,...&Zhang, Tao.(2012).Evolution of Fe Crystallographic Sites from Barium Hexaaluminate to Hexaferrite.journal of physical chemistry c,116(1),671-680. |
| MLA | Zhu, Yanyan,et al."Evolution of Fe Crystallographic Sites from Barium Hexaaluminate to Hexaferrite".journal of physical chemistry c 116.1(2012):671-680. |
入库方式： OAI收割
来源：大连化学物理研究所
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