| 相转化对均匀胶粒的形貌及团聚度的影响 |
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| 引用本文： | 魏雨,贺会兰,刘晓林,郑学忠.相转化对均匀胶粒的形貌及团聚度的影响[J].物理化学学报,1997,13(6):564-568. |
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| 作者姓名： | 魏雨 贺会兰 刘晓林 郑学忠 |
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| 作者单位： | Department of Chemistry,Hebei Normal Universtiy,Shijiazhuang 050016 |
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| 摘 要： | 金属盐溶液高温强迫水解是制备均分散胶体粒子的重要手段K’1．多年来人们致力于制备方法的研究，并对形成机理也有较系统的讨论．就。－FeZ（此胶粉的形成而言；张玉亭门和Moral，s山先后研究了0．02mol·L－’的F，CI。－HCI及FeCI。－NaH。PO。体系经100t陈化制备均匀球形和
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| 关 键 词： | 相转化 均匀胶粒 团聚度 |
| 收稿时间： | 1996-09-16 |
| 修稿时间： | 1996-12-05 |
Inflence of Phase Transformation on the Morphology and Aggregation of Uniform Colloidal Particles |
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| Wei Yu He Huilan Liu Xianlin Zheng Xuezhong.Inflence of Phase Transformation on the Morphology and Aggregation of Uniform Colloidal Particles[J].Acta Physico-Chimica Sinica,1997,13(6):564-568. |
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| Authors: | Wei Yu He Huilan Liu Xianlin Zheng Xuezhong |
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| Institution: | Department of Chemistry,Hebei Normal Universtiy,Shijiazhuang 050016 |
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| Abstract: | The inflence of the additives, NaH2PO4 and 1-hydroxyethylidene-1,1'-diphosphonic acid (HEDP), the concentration of HNO3 and the temperature of reaction on the phase transformation and aggregation of Fe2O3 particles obtained by the boiling reflux of 0.2mol-1 Fe(NO3)3 solution has been studied using TEM and XRD. Phosphate gave monodispersed spindle-shaped α-Fe2O3 perticles used as magnetic recording material. Nanowhiskers of α-Fe2O3 was formed in the presence of HEDP and HNO3. The method is provisionally referred to as the inhibitory subcrystal aggregation method. |
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| Keywords: | Phase transformation Uniform colloidal particle Aggregation |
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