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首页> 外文期刊>Journal of materials science >Effect of Vd-doping on dielectric, magnetic and gas sensing properties of nickel ferrite nanoparticles
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Effect of Vd-doping on dielectric, magnetic and gas sensing properties of nickel ferrite nanoparticles

机译：VD掺杂对镍铁氧体纳米粒子介质，磁气感测性能的影响

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摘要

Pristine and vanadium-doped nickel ferrite (NiFe_2O_4) nanoparticles (NPs) were prepared by a chemical co-precipitation method. They were characterized by X-ray diffraction, scanning electron microscopy and X-ray photoelectron spectroscopy to explore their crystallinity, morphology and chemical states. Dielectric constant and dielectric loss properties were studied as a function of frequency and temperature and it was found that V-doping resulted in the enhancement of the dielectric properties. Both pristine and V-doped ferrites showed superparamagnetic nature and zero coercivity and retentivity. However, the saturation magnetization was decreased after V-doping, suggesting presence of superexchange interaction between A-B sites. Both pristine and V-doped NiFe_2O_4 NPs were also used for NO sensing studies and it was revealed that V-doped gas sensor revealed a better sensing performance (response of 5 s and sensitivity of 43 to 200 ppm NO gas) than pristine one (response of 9 s and sensitivity of 37 to 200 ppm NO gas).
机译：通过化学共沉淀法制备原始和钒掺杂镍铁氧体（NIFE_2O_4）纳米颗粒（NPS）。它们的特征在于X射线衍射，扫描电子显微镜和X射线光电子能谱，探索其结晶度，形态学和化学态。研究介电常数和介电损耗特性作为频率和温度的函数，发现V掺杂导致介电性能的增强。原始和V掺杂铁氧体均显示出超顺磁性和零矫顽力和保持性。然而，在V型掺杂后，饱和磁化减小，表明A-B位点之间存在超速相互作用。丙酮和V掺杂的NiFe_2O_4 NPS也用于没有传感研究，并且揭示V掺杂气体传感器显示出比原始的更好的感测性能（响应和43至200ppm的敏感性）（反应9 s和37至200ppm的敏感性没有气体）。

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  • 来源
    《Journal of materials science》 |2020年第19期|16728-16736|共9页
  • 作者

    V. Manikandan; lulian Petrila; S. Kavita; R. S. Mane; Juliano C. Denardin; Stefan Lundgaard; Saulius Juodkazis; S. Vigneselvan; J. Chandrasekaran;

  • 作者单位

    Department of Physics. Kongunadu Arts and Science College Coimbatore 641 029 India;

    Faculty of Automatic Control and Computer Engineering Gheorghe Asachi Technical University of Iasi Str. Dimitrie Mangeron Nr. 27 700050 Iasi Romania;

    Centre for Automotive Energy Materials International Advanced Research Centre for Powder Metallurgy and New Materials Chennai Tamil Nadu 113. India;

    Center for Nanomaterial & Energy Devices Swami Ramanand Teerth Marathwada University Dnyanteerth Vishnupuri Nanded 431606 India;

    Department of Physics. University of Santiago and CEDENNA. Santiago Chile;

    Optical Sciences Centre and ARC Training Centre in Surface Engineering for Advanced Materials (SEAM) School of Science Swinburne University of Technology Hawthorn VIC 3122 Australia;

    Optical Sciences Centre and ARC Training Centre in Surface Engineering for Advanced Materials (SEAM) School of Science Swinburne University of Technology Hawthorn VIC 3122 Australia;

    Department of Physics Government College of Technology Coimbatore 641 013 India;

    Department of Physics Sri Ramakrishna Mission Vidyalaya College of Arts and Science Coimbatore 641 020 India;

  • 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);
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  • 正文语种 eng
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