Preparation and magnetization of hematite nanocrystals with amorphous iron oxide layers by hydrothermal conditions
作者： G.S. Li , R.L. Smith , H. Inomata , K. Arai
DOI: 10.1016/S0025-5408(02)00695-5
关键词: Iron oxide 、 Inorganic chemistry 、 Hydrothermal circulation 、 Hydrothermal synthesis 、 Crystallization 、 Coercivity 、 Amorphous solid 、 Nanocrystal 、 Materials science 、 Hematite
摘要: Abstract Hematite nanocrystals modified with surface layers of amorphous hydrous iron oxides were prepared by hydrothermal conditions in the absence alkali. The formation temperature was found to be ca. 130°C. When lower than 130°C, no product formed, while above this temperature, amount at hematite drastically decreased. on obtained 130°C determined Fe2O3·1.64H2O. coercivity for 0.534 kOe, which is slightly larger values few agglomerations.
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