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首页> 外文期刊>Journal of Crystal Growth >Nd-substituted bismuth titanate ferroelectric nanofibers by electrospinning
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Nd-substituted bismuth titanate ferroelectric nanofibers by electrospinning

机译：Nd-取代钛酸铋铁电纳米纤维的电纺

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摘要

Nd-substituted bismuth titanate (Bi_(3.15)Nd_(0.85)Ti_3O_(12), BNT) nanofibers were synthesized by electrospinning method utilizing a solution that contained poly(vinylpyrrolidone) (PVP) and sol-gel precursor solution of BNT. The BNT/PVP composite fibers were calcined in air for 1 h at 500, 600, 700, 750, and 800℃, respectively. Scanning electron microscopy, X-ray diffraction, and Fourier transform infrared spectroscopy were used to characterize the as-synthesized and calcined BNT/PVP composite nanofibers. The experimental results showed that the diameter, morphology, and crystallization of the nanofibers are influenced by the calcination temperature. After calcination at 700℃, BNT fibers are fully crystallized and exhibit a polycrystalline bismuth-layered perovskite structure, with a diameter of 70-160 nm and a length of over 6 μm.
机译：Nd取代钛酸铋（Bi_（3.15）Nd_（0.85）Ti_3O_（12），BNT）纳米纤维通过电纺丝法利用含有聚乙烯吡咯烷酮（PVP）和BNT溶胶-凝胶前驱体溶液的溶液合成。将BNT / PVP复合纤维分别在500、600、700、750和800℃的空气中煅烧1 h。扫描电子显微镜，X射线衍射和傅里叶变换红外光谱用于表征合成和煅烧的BNT / PVP复合纳米纤维。实验结果表明，纳米纤维的直径，形态和结晶度受煅烧温度的影响。 700℃煅烧后，BNT纤维完全结晶，呈现出多晶铋层状钙钛矿结构，直径为70-160 nm，长度超过6μm。

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