Self-assembly growth of BiFeO3 powders prepared by microwave–hydrothermal method
Self-assembly growth of BiFeO3 powders prepared by microwave–hydrothermal method
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DOI：
10.1016/j.matlet.2011.01.026
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发表时间：
2011-04
影响因子：
3
通讯作者：
Yuqin Zheng;Guoqiang Tan;H. Miao;Ao Xia;H. Ren
中科院分区：
文献类型：
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作者：
Yuqin Zheng;Guoqiang Tan;H. Miao;Ao Xia;H. Ren
以FeCl 3. 6 H2O和Bi（NO3）3. 5 H2O为原料，KOH为矿化剂，在200°C下采用微波水热法合成了纯相BiFeO 3（BFO）粉体，反应时间仅为30 min。总结了BFO粉体的制备范围。场发射扫描电子显微镜（FE-SEM）图像显示，小块BFO片生长在一起形成冰糖状BFO粉末，然后它们进一步生长形成贻贝状BFO粉末。透射电子显微镜（TEM）图像也提高了BFO粉末的自组装生长。X射线衍射（XRD）、高分辨透射电子显微镜（HRTEM）和选区电子衍射（SAED）结果表明，BFO粉体沿沿着和[104]晶向生长。BFO的B-H环表明纯相BFO粉末具有弱磁性。
With FeCl3·6H2O and Bi(NO3)3·5H2O powder as raw materials and KOH as a mineralizer, the pure phase BiFeO3(BFO) powder was synthesized by microwave–hydrothermal (MH) method at 200°C, with the reaction time as little as 30min. The range of preparing the BFO powders had been summarized. The field emission scanning electron microscopy (FE-SEM) images revealed that the little BFO plate grew together forming rock sugar-like BFO powders, and then they grew further to form the mussel-like BFO powders. The transmission electron microscope (TEM) images also improved the self-assembly growth of BFO powders. The X-ray diffraction (XRD), the high resolution transmission electron microscopy (HRTEM) and the selected area electron diffraction (SAED) results indicated that the BFO powders grew along the [110] and [104] crystal orientation. The B–H loops of BFO indicated that the weak magnetism existed in the pure phase BFO powders.