Centrifugal Jet Spinning for Highly Efficient and Large-scale Fabrication of Barium Titanate Nanofibers.

Centrifugal Jet Spinning for Highly Efficient and Large-scale Fabrication of Barium Titanate Nanofibers.
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DOI:
10.1016/j.matlet.2013.11.103
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发表时间:
2014-02-15
期刊:
影响因子:
3
通讯作者:
Kotha SP
Kotha SP
中科院分区:
材料科学3区
文献类型:
--
作者:
Ren L;Kotha SP

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发展了离心式喷气纺丝(CJS)方法,实现了钛酸钡纳米纤维的大规模合成。采用CJS纺丝法制备了直径为50 nm、晶粒度约为25 nm的钛酸钡纳米纤维,该纤维经850℃热处理后得到纯度较高的四方钙钛矿结构的钛酸钡纳米纤维。扫描电子显微镜和透射电子显微镜图像证实了热处理后的钛酸钡纳米纤维具有连续的高深宽比结构。结果表明,CJS技术为大规模制备陶瓷纳米纤维提供了一种高效的方法,其生产速度高达0.3g/min。
The centrifugal jet spinning (CJS) method has been developed to enable large-scale synthesis of barium titanate nanofibers. Barium titanate nanofibers with fiber diameters down to 50 nm and grain sizes around 25 nm were prepared with CJS by spinning a sol-gel solution of barium titanate and poly(vinylpyrrolidone) with subsequent heat treatment at 850 °C. XRD and FTIR analysis demonstrated high purity and tetragonal perovskite structured barium titanate nanofibers. SEM and TEM images confirm the continuous high aspect ratio structure of barium titanate nanofibers after heat treatment. It is demonstrated that the CJS technique offers a highly efficient method for large-scale fabrication of ceramic nanofibers at production rates of up to 0.3 gram/minute.
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