Ni2+掺杂纤蛇纹石纳米管的制备与磁性研究

材料工程, 2011, (9): 77-81. doi: 10.3969/j.issn.1001-4381.2011.09.015

Ni2+掺杂纤蛇纹石纳米管的制备与磁性研究

马国华 ^1, , 彭同江 ^2, , 吴卫东 ^3, , 刘海峰 ^4, , 李明 ^5,

1.中国工程物理研究院激光聚变中心,四川绵阳621002;西南科技大学,四川绵阳621010

2.西南科技大学,四川绵阳621010

3.中国工程物理研究院激光聚变中心,四川绵阳621002

4.西南科技大学,四川绵阳621010

5.西南科技大学,四川绵阳621010

基金项目: 国家自然科学基金资助项目(51002126)

关键词：水热反应 , 纤蛇纹石纳米管 , 掺杂 , 铁磁性

Preparation and Magnetic Property of Ni-doped Chrysotile Nanotubes

通过水热法制备了Ni2+掺杂纤蛇纹石纳米管.采用X射线衍射(XRD)、扫描电子显微镜(SEM)、高分辨透射电子显微镜(HRTEM)、傅里叶变换红外光谱(FTIR)和磁性测试等手段研究了合成样品的形貌、结构以及磁性与掺杂量的关系.结果表明:合成纳米管样品的内、外径分别为6～7nm和30～40nm；随Ni2+掺杂量的增加,合成样品的晶胞参数b0值从0.9190nm增加到0.9261nm;掺杂后的样品具有室温铁磁性,在相同外磁场下,饱和磁化强度随着Ni2+掺杂量的增加从2.2×10-4 A·m2 ·kg-1增加到4.7×10-4A·m2 ·kg-1,部分Ni以氧化镍的形式存在于纳米管样品的管内,并表现出顺磁性特征.

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材料期刊网

Ni2+掺杂纤蛇纹石纳米管的制备与磁性研究

Preparation and Magnetic Property of Ni-doped Chrysotile Nanotubes

参考文献