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Synthesis and phase evolution of electrospun antiferroelectric lead zirconate (PbZrO_3) nanofibers

机译：电纺反铁电锆酸铅（PbZrO_3）纳米纤维的合成及相演化

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摘要

Lead zirconate (PbZrCh; PZO) fibers were synthesized by the electrospinning method using a solution that contained 5wt% poly(ethylene oxide) (PEO) in ethanol and a sol-gel solution of PZO. Some parameters varied, for example, the ratio between PEO and PZO, concentrations of the precursor solution, flow rate, and calcination temperature. The as-spun and calcined PZO/PEO composite fibers were characterized by TG-DTA, X-ray diffraction, FT-IR, SEM and TEM. PZO fibers were obtained successfully with a well-developed perovskite structure after as-spun PZO/PEO composite fibers were calcined using the PZO/PEO volume ratio of 10:3 at a PZO concentration of 1.0 M at 650 ℃ for 4h. Stable nanofibers were produced with an average diameter of 300 ± 64 nm. Additionally, the PZO fibers showed a Curie temperature that rose by nearly 13 ℃, when comparing with a normal PZO particle.
机译：锆酸铅（PbZrCh; PZO）纤维是通过电纺丝法合成的，使用的溶液是乙醇中含有5wt％的聚环氧乙烷（PEO）和PZO的溶胶-凝胶溶液。某些参数会发生变化，例如，PEO和PZO之间的比例，前体溶液的浓度，流速和煅烧温度。通过TG-DTA，X射线衍射，FT-IR，SEM和TEM对初生和煅烧的PZO / PEO复合纤维进行了表征。将PZO / PEO复合纤维以10：3的体积比在1.0 M的PZO浓度下于650℃下煅烧4h，即可成功获得具有良好钙钛矿结构的PZO纤维。生产出平均直径为300±64 nm的稳定纳米纤维。另外，与正常的PZO颗粒相比，PZO纤维的居里温度升高了近13℃。

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  • 来源
    《Materials Science and Engineering》 |2012年第13期|p.1009-1016|共8页
  • 作者

    Chanisa Nawanil; Banjong Boomchom; Jutarat Prachayawarakorn; Wanwilai C. Vittayakorn; Naratip Vittayakorn;

  • 作者单位

    Electroceramic Research Laboratory. College ofNanotechnology, King Mongkut's Institute of Technology Ladkrabang, Bangkok 10520. Thailand,ThEP Center, CHE, 328 Si Ayutthaya Rd., Bangkok 104m, Thailand;

    King Mongkut's Institute of Technology Ladkrabang, Chumphon Campus, 17/1 M. 6 Pha Thiew District, Chumphon 86160, Thailand;

    Department of Chemistry, Faculty of Science, King Mongkut's Institute of Technology Ladkrabang, Bangkok 10520, Thailand;

    Electroceramic Research Laboratory. College ofNanotechnology, King Mongkut's Institute of Technology Ladkrabang, Bangkok 10520. Thailand;

    Electroceramic Research Laboratory. College ofNanotechnology, King Mongkut's Institute of Technology Ladkrabang, Bangkok 10520. Thailand,ThEP Center, CHE, 328 Si Ayutthaya Rd., Bangkok 104m, Thailand,Department of Chemistry, Faculty of Science, King Mongkut's Institute of Technology Ladkrabang, Bangkok 10520, Thailand;

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  • 正文语种 eng
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  • 关键词

    electrospinning; sol-gel; lead zirconate;

    机译：静电纺丝;溶胶凝胶;锆酸铅;

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