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Updated: Jul 11, 2026

Multifunctional Hybrid Fe2O3-Au Nanoparticles for Efficient Plasmonic Heating
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Published on: February 20, 2016

单分散氧化铁纳米晶体通过"升温"过程形成的动力学

Soon Gu Kwon1, Yuanzhe Piao, Jongnam Park

  • 1National Creative Research Initiative Center for Oxide Nanocrystalline Materials, and School of Chemical and Biological Engineering, Seoul National University, Seoul 151-744, Korea.

Journal of the American Chemical Society
|September 25, 2007
PubMed
概括

这项研究详细介绍了通过铁酸盐分解形成氧化铁纳米晶体的情况,揭示了爆发核形成后的尺寸聚焦. 这些发现与LaMer模型一致,统一了"加热"和"热注入"合成方法.

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Precipitate Formation and Particle Size Control01:16

Precipitate Formation and Particle Size Control

In precipitation gravimetry, the precipitating agent should react specifically or selectively with the analyte. While a specific reagent reacts with the analyte alone, a selective reagent can react with a limited number of chemical species.
The obtained precipitate should be either a pure substance of known composition or easily converted to one by a simple process, such as ignition or drying. In addition, the precipitate should be insoluble and easily filterable. In general, filterability...
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Colloidal precipitates

The high insolubility of some precipitates can result in an unfavorable relative supersaturation. This can lead to colloidal particles with a large surface-to-mass ratio, where adsorption is promoted. For instance, in the precipitation of silver chloride, silver ions are adsorbed on the surface of the colloidal particles, forming a primary layer. This layer attracts ions of opposite charge (such as nitrate ions), forming a diffuse secondary layer of adsorbed ions. This electric double layer...