Title: Preparation of Uniform Acicular Hematite Particles by Two Steps Hydrothermal Method from Fe(OH)_3 Gel
Abstract: Uniform acicular hematite particles were prepared by two steps hydrothermal method fromFe(OH)3 gel. The effect of nucleating temperature, pH and Sn4+ ions on the morphologies ofhematite particles was studied. The experiments showed that uniform acicular particles can beobtained. First the suspension of Fe(OH)3 aged at 50-80℃ for 2h, crystal growing agent wasthen added, and put into a stainless steel autoclave with stirring at 150~170℃ for 1.5h. The keyproblem of the poor repeatability of experimental result was solved. The results were characterizedby TEM and XRD.
Publication Year: 1998
Publication Date: 1998-01-01
Language: en
Type: article
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