AbstractThe series of Li(4−2x)NixTi2O6 Chemical composition of Li_((4_2x))Ni_xTi_2O_6 by sol-gel method and microwave processing
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Chemical composition of Li_((4_2x))Ni_xTi_2O_6 by sol-gel method and microwave processing

机译:溶胶-凝胶法和微波处理Li _((4_2x))Ni_xTi_2O_6的化学成分

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摘要

AbstractThe series of Li(4−2x)NixTi2O6(where x = 0, 0.25, 0.50 and 0.75) is synthesized by sol–gel method and further microwave processed. The X-ray diffraction confirmed the single phase formation of monoclinic crystal structure and the average crystal size is calculated to be between 35 and 44 nm. The Fourier transformation infra-red analysis confirmed the vibrational bond frequency of the sample. The high-resolution scanning electron microscope revealed uniform morphology and the average particle size is found to be 15–30 nm. The temperature dependent dielectric constant is measured in the temperature range 30–560 °C. A drastic change in the dielectric is noticed after 370 °C in all the compositions. The complex impedance spectrum confirms the electron hopping conduction and non-Debye type behaviour at all the recorded temperatures. The Cole–Cole plots suggested grain conduction for all the compositions except for x = 0.75, where other contributions are suspected.
机译: 摘要 Li (4−2x) Ni x的系列通过溶胶-凝胶法合成了 Ti 2 O 6 (其中x = 0、0.25、0.50和0.75),并进一步进行了微波处理。 X射线衍射证实了单斜晶体结构的单相形成,平均晶体尺寸经计算在35至44 nm之间。傅立叶变换红外分析证实了样品的振动键频率。高分辨率扫描电子显微镜显示出均匀的形貌,平均粒径为15–30 nm。与温度相关的介电常数是在30–560°C的温度范围内测量的。在所有组合物中370°C后,电介质都会发生急剧变化。复数阻抗谱确认了在所有记录的温度下的电子跳跃传导和非德拜型行为。 Cole-Cole曲线表明,除x = 0.75以外,所有成分的晶粒导电性都存在怀疑的可能。

著录项

  • 来源
    《Journal of materials science》 |2018年第3期|2259-2266|共8页
  • 作者单位

    Centre for Crystal Growth, VIT University;

    Centre for Crystal Growth, VIT University;

  • 收录信息 美国《科学引文索引》(SCI);美国《工程索引》(EI);美国《生物学医学文摘》(MEDLINE);
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

  • 入库时间 2022-08-17 13:43:20

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