Abnormal phase transition in BiNbO4 powders prepared by a citrate method
文献类型：期刊论文
| 作者 | Zhai, HF ; Qian, X ; Kong, JZ ; Li, AD ; Gong, YP (龚佑品) ; Li, H ; Wu, D |
| 刊名 | JOURNAL OF ALLOYS AND COMPOUNDS
 |
| 出版日期 | 2011-10-20 |
| 卷号 | 509期号:42页码:10230-10233 |
| 关键词 | BiNbO4 Citrate method Phase transition |
| 通讯作者 | Li, AD |
| 英文摘要 | Triclinic beta-BiNbO4 prepared below 750 degrees C and above 1040 degrees C (denoted as Low-beta and High-beta, respectively) and pure orthorhombic alpha-BiNbO4 at 900 degrees C were successfully derived from a citrate method and the phase transition from beta-BiNbO4 to alpha-BiNbO4 was first observed in BiNbO4 powders. This phenomenon proves that the abnormal phase transition from beta-BiNbO4 to alpha-BiNbO4 exists in BiNbO4 powder system. The synthesis of Low-beta powders can be attributed to the formation of the intermediate phase of Bi5Nb3O15 by the citrate method. With increasing temperature, the Low-beta phase gradually turns into alpha-BiNbO4 due to the thermodynamically metastable state of Low-beta. We also identified that the stress in pellet format can accelerate the phase transition from Low-beta to alpha phase of BiNbO4 in comparison with powder samples. It brings us new understanding of the BiNbO4 system and also provides a simple way to obtain BiNbO4 for microwave and photocatalytic applications. |
| 收录类别 | SCI ; EI |
| 语种 | 英语 |
| WOS记录号 | WOS:000295978700012 |
| 公开日期 | 2012-07-24 |
| 源URL | [http://58.210.77.100/handle/332007/511]  |
| 专题 | 苏州纳米技术与纳米仿生研究所_纳米器件及相关材料研究部_刘立伟团队 |
| 推荐引用方式 GB/T 7714 | Zhai, HF,Qian, X,Kong, JZ,et al. Abnormal phase transition in BiNbO4 powders prepared by a citrate method[J]. JOURNAL OF ALLOYS AND COMPOUNDS,2011,509(42):10230-10233. |
| APA | Zhai, HF.,Qian, X.,Kong, JZ.,Li, AD.,Gong, YP .,...&Wu, D.(2011).Abnormal phase transition in BiNbO4 powders prepared by a citrate method.JOURNAL OF ALLOYS AND COMPOUNDS,509(42),10230-10233. |
| MLA | Zhai, HF,et al."Abnormal phase transition in BiNbO4 powders prepared by a citrate method".JOURNAL OF ALLOYS AND COMPOUNDS 509.42(2011):10230-10233. |
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