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首页> 外文期刊>Materials Chemistry and Physics >One-pot synthesis of magnetic hybrid materials based on ovoid-like carboxymethyl-cellulose/cetyltrimethylammonium-bromide templates
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One-pot synthesis of magnetic hybrid materials based on ovoid-like carboxymethyl-cellulose/cetyltrimethylammonium-bromide templates

机译:基于卵形羧甲基纤维素/十六烷基三甲基溴化铵模板的一锅法合成磁性杂化材料

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摘要

A novel one-pot synthetic procedure to obtain magnetic hybrid nanostructured materials (HNM), based on magnetic spinel-metal-oxide (SMO) nanopartides stabilized in ovoid-like carboxymethyl-cellulose (CMC)/cetyltrimethylammonium-bromide (CTAB) templates, is reported. The HNM were synthesized from the controlled hydrolysis of inorganic salts of Fe (Ⅱ) and Fe (Ⅲ) into aqueous dissolutions of CMC and CTAB. The synthesized HNM were characterized by transmission electron microscopy, Fourier transform infrared spectroscopy and static magnetic measurements. The experimental evidence suggests that, due to the competition between CTAB molecules and SMO nanoparticles to occupy CMC inter-molecular sites nearby to its carboxylate functional groups, the size of both, SMO nanopartides and ovoid-like CMC/CTAB templates can be tuned, varying the CTAB:SMO weight ratio. Moreover, it was found that the magnetic response of the HNM depends on the confinement degree of the SMO nanoparticles into the CMC/CTAB template. Hence, their magnetic characteristics can be adjusted controlling the size of the template, the quantity and distribution of the SMO nanopartides within the template and their size.
机译:一种新颖的一锅合成程序,以稳定在卵形羧甲基纤维素(CMC)/十六烷基三甲基溴化溴(CTAB)模板中的磁性尖晶石-金属氧化物(SMO)纳米粒子为基础,获得磁性混合纳米结构材料(HNM)报告。通过将Fe(Ⅱ)和Fe(Ⅲ)的无机盐水解为CMC和CTAB的水溶液来合成HNM。通过透射电子显微镜,傅立叶变换红外光谱和静磁测量对合成的手性纳米材料进行了表征。实验证据表明,由于CTAB分子与SMO纳米粒子之间的竞争,以占据其羧基官能团附近的CMC分子间位点,SMO纳米粒子和卵形CMC / CTAB模板的大小均可调整,变化CTAB:SMO重量比。此外,发现HNM的磁响应取决于SMO纳米颗粒进入CMC / CTAB模板的限制程度。因此,可以通过控制模板的大小,模板中SMO纳米粒子的数量和分布以及它们的大小来调节其磁特性。

著录项

  • 来源
    《Materials Chemistry and Physics》 |2013年第3期|735-743|共9页
  • 作者单位

    Universidad Autonoma de Nuevo Leon, Facultad de Ingenieria Mecanica y Electrica, San Nicolas de los Garza, 66450 Nuevo Leon, Mexico;

    Universidad Autonoma de Nuevo Leon, Facultad de Ingenieria Mecanica y Electrica, San Nicolas de los Garza, 66450 Nuevo Leon, Mexico,Universidad Autonoma de Nuevo Leon, Centro de Innovacion, Investigation y Desarrollo en Ingenieria y Tecnologia, Apodaca, 66600 Nuevo Leon, Mexico;

    Universite de Nantes, CNRS, Institut des Materiaux Jean Rouxel (IMN), 2 rue de la Houssiniere, BP32229, 44322 Nantes Cedex 3, France;

    Universidad Autonoma de Nuevo Leon, Facultad de Ingenieria Mecanica y Electrica, San Nicolas de los Garza, 66450 Nuevo Leon, Mexico,Universidad Autonoma de Nuevo Leon, Centro de Innovacion, Investigation y Desarrollo en Ingenieria y Tecnologia, Apodaca, 66600 Nuevo Leon, Mexico;

    Universidad Autonoma de Nuevo Leon, Facultad de Ingenieria Mecanica y Electrica, San Nicolas de los Garza, 66450 Nuevo Leon, Mexico,Universidad Autonoma de Nuevo Leon, Centro de Innovacion, Investigation y Desarrollo en Ingenieria y Tecnologia, Apodaca, 66600 Nuevo Leon, Mexico;

    Universidad Autonoma de Nuevo Leon, Facultad de Ingenieria Mecanica y Electrica, San Nicolas de los Garza, 66450 Nuevo Leon, Mexico,Universidad Autonoma de Nuevo Leon, Centro de Innovacion, Investigation y Desarrollo en Ingenieria y Tecnologia, Apodaca, 66600 Nuevo Leon, Mexico;

  • 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

    Magnetic materials; Oxides; Nanostructures; Polymers;

    机译:磁性材料;氧化物;纳米结构;聚合物;

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