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(06): 564-568.
doi:
10.3866/PKU.WHXB19970616
Citation: Wei Yu, He Hui-Lan, Liu Xiao-Lin, Zheng Xue-Zhong. Inflence of Phase Transformation on the Morphology and Aggregation of Uniform Colloidal Particles[J]. Acta Physico-Chimica Sinica, 1997, 13(06): 564-568. doi: 10.3866/PKU.WHXB19970616
Citation: Wei Yu, He Hui-Lan, Liu Xiao-Lin, Zheng Xue-Zhong. Inflence of Phase Transformation on the Morphology and Aggregation of Uniform Colloidal Particles[J]. Acta Physico-Chimica Sinica, 1997, 13(06): 564-568. doi: 10.3866/PKU.WHXB19970616
English
Inflence of Phase Transformation on the Morphology and Aggregation of Uniform Colloidal Particles
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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Key words:
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Phase transformation
- / Uniform colloidal particle
- / Aggregation
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