Preparation and Properties of Octadecahedral alpha-Fe2O3 NanoparticlesEnclosed by {104} and {112} Facets

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	Preparation and Properties of Octadecahedral alpha-Fe2O3 NanoparticlesEnclosed by {104} and {112} Facets
	Liu, Zhong; Lv, Baoliang; Wu, Dong; Sun, Yuhan; Xu, Yao
	2012
发表期刊	EUROPEAN JOURNAL OF INORGANIC CHEMISTRY
ISSN	1434-1948
期号	25 页码:4076-4081
关键词	Solid-state Structures Nanoparticles Magnetic Properties Sensors
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.
文献类型	期刊论文
条目标识符	http://ir.isl.ac.cn/handle/363002/2030
专题	青海盐湖研究所知识仓储
推荐引用方式 GB/T 7714	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.
APA	Liu, Zhong,Lv, Baoliang,Wu, Dong,Sun, Yuhan,&Xu, Yao.(2012).Preparation and Properties of Octadecahedral alpha-Fe2O3 NanoparticlesEnclosed by {104} and {112} Facets.EUROPEAN JOURNAL OF INORGANIC CHEMISTRY(25),4076-4081.
MLA	Liu, Zhong,et al."Preparation and Properties of Octadecahedral alpha-Fe2O3 NanoparticlesEnclosed by {104} and {112} Facets".EUROPEAN JOURNAL OF INORGANIC CHEMISTRY .25(2012):4076-4081.

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