The study of novel Fe3O4@gamma-Fe2O3 core/shell nanomaterials with improved properties
Data(s) |
2009
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Resumo |
The surface structure of the iron oxide nanoparticles obtained by the co-precipitation method has been investigated, and a thin layer of alpha-FeOOH absorbed on surface of the nanoparticle is confirmed by analyses of Fourier transform infrared (FTIR), X-ray photoelectron spectra (XPS) and surface photovoltage spectroscopy (SPS). After annealed at 400 degrees C, the alpha-FeOOH can be converted to gamma-Fe2O3. The simple-annealed procedure resulted in the formation of Fe3O4@gamma-Fe2O3 core/shell structure with improved stability and a higher magnetic saturation value, and also the simple method can be used to obtain core/shell structure in other similar system. |
Identificador | |
Idioma(s) |
英语 |
Fonte |
Gao Q;Chen FH;Zhang JL;Hong GY;Ni JZ;Wei X;Wang DJ.The study of novel Fe3O4@gamma-Fe2O3 core/shell nanomaterials with improved properties,JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS,2009,321(8):1052-1057 |
Palavras-Chave | #MAGNETIC PARTICLES #COBALT NANOPARTICLES #FEPT NANOPARTICLES #FE3O4 #TISSUE |
Tipo |
期刊论文 |