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材料研究学报  2011, Vol. 25 Issue (4): 399-402    
  研究论文 本期目录 | 过刊浏览 |
静电纺丝法制备超长YMnO3单晶纳米纤维
戴剑锋1,2, 陈小婷2, 慕晓文2, 高会芳2
1.兰州理工大学甘肃省有色金属新材料重点实验室 兰州 730050
2.兰州理工大学理学院 兰州 730050
Fabrication Ultralong and Single-Crystalline YMnO3 Nanofiber by Electrospinning
DAI Jianfeng1,2, CHEN Xiaoting2, MU Xiaowen2, GAO Huifang2
1.State Key Laboratory of Gansu Advanced Non-Ferrous Metal Materials, Lanzhou 730050
2.School of science, Lanzhou University of Technology, Lanzhou 730050
引用本文:

戴剑锋 陈小婷 慕晓文 高会芳. 静电纺丝法制备超长YMnO3单晶纳米纤维[J]. 材料研究学报, 2011, 25(4): 399-402.
, , , . Fabrication Ultralong and Single-Crystalline YMnO3 Nanofiber by Electrospinning[J]. Chin J Mater Res, 2011, 25(4): 399-402.

全文: PDF(768 KB)  
摘要: 采用改进的静电纺丝装置结合溶胶--凝胶技术制备了超长的定向排列的YMnO3/PVP复合纳米纤维, 将其在900oC高温煅烧6 h得到了六方相YMnO3(H--YMnO3)单晶纳米纤维。用SEM, XRD, TEM, SAED及VSM对样品的相纯度, 表面形貌、晶体结构和磁性能进行了表征。结果表明: YMnO3/PVP复合纳米纤维的长度可达数米, 表面光滑, 定向度高, 形貌均一, 平均直径为150--230 nm; H--YMnO3纤维的直径为70--100 nm, 表面光滑呈莲藕状; 在室温下的磁测量结果表明, H--YMnO3纳米纤维具有弱铁磁性。
关键词 无机非金属材料纳米纤维静电纺丝溶胶--凝胶YMnO3    
Abstract:The ultralong and aligned YMnO3/PVP composite nanofibers have been synthesized by sol-gel based on modified electrospinning setup. After calcining the as-spun YMnO3/PVP fiber at 900oC for 6 h in air atmosphere, the single-crystalline hexagonal YMnO3 (H–YMnO3) nanofiber can be obtained. The fabricated products were characterized by SEM, XRD, TEM, SAED and VSM to reveal the phase purity, morphologic, crystalline structure and magnetic properties. The results show that the YMnO3/PVP composite nanofibers presented smooth surface, high alignment degree and a rather uniform diameter around 150–230 nm over a length of several meters, the H–YMnO3 nanofibers exhibited lotusroot-like morphology and surface-smooth; and have a reduced diameter ranging from 70 to 100 nm. H–YMnO3 nanofibers has weak ferromagnetism at room temperature.
Key wordsinorganic non-metallic materials    nanofibers    electrospinning    sol-gel preparation    YMnO3
收稿日期: 2010-11-12     
ZTFLH: 

O614.32+2

 
基金资助:

国家自然科学基金50873047资助项目。

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