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题名: Preparation and Properties of Octadecahedral alpha-Fe2O3 NanoparticlesEnclosed by {104} and {112} Facets
作者: 刘忠 ;  Lv, Baoliang ;  Wu, Dong ;  Sun, Yuhan ;  Xu, Yao
刊名: EUROPEAN JOURNAL OF INORGANIC CHEMISTRY
出版日期: 2012
期号: 25, 页码:4076-4081
关键词: Solid-state structures ;  Nanoparticles ;  Magnetic properties ;  Sensors
英文摘要: Octadecahedral alpha-Fe2O3 nanoparticles were hydrothermally synthesized in the presence of formamide. These octadecahedral alpha-Fe2O3 nanoparticles have a threefold axis and are enclosed by twelve dominant {112} facets and six {104} facets. In comparison with the {104} facets, the sterically less hindered {112} facets induced the selective adsorption of formamide more easily, which resulted in the gradual increase in the amount of {112} facets by decreasing the amount of {104} facets with increasing formamide. The coercivity (Hc) of these octadecahedral particles increased successively as the aspect ratio (c/a) increased. The sensing capability of these particles toward H2O2 was investigated, and the response currents of the particles dominated by {112} facets showed a linear relationship with a concentration of H2O2 in the range from 40 mu M to 6.66 mM in different stages. Octadecahedral alpha-Fe2O3 nanoparticles were hydrothermally synthesized in the presence of formamide. These octadecahedral alpha-Fe2O3 nanoparticles have a threefold axis and are enclosed by twelve dominant {112} facets and six {104} facets. In comparison with the {104} facets, the sterically less hindered {112} facets induced the selective adsorption of formamide more easily, which resulted in the gradual increase in the amount of {112} facets by decreasing the amount of {104} facets with increasing formamide. The coercivity (Hc) of these octadecahedral particles increased successively as the aspect ratio (c/a) increased. The sensing capability of these particles toward H2O2 was investigated, and the response currents of the particles dominated by {112} facets showed a linear relationship with a concentration of H2O2 in the range from 40 mu M to 6.66 mM in different stages.
收录类别: SCI
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内容类型: 期刊论文
URI标识: http://ir.isl.ac.cn/handle/363002/2030
Appears in Collections:青海盐湖研究所知识仓储(2014年之前)_期刊论文

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Recommended Citation:
Liu, Zhong,Lv, Baoliang,Wu, Dong,et al. Preparation and Properties of Octadecahedral alpha-Fe2O3 NanoparticlesEnclosed by {104} and {112} Facets[J]. EUROPEAN JOURNAL OF INORGANIC CHEMISTRY,2012(25):4076-4081.
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