纳米粒子的稳定性是什么意思？,The Journal of Physical Chemistry C

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纳米粒子的稳定性是什么意思？
The Journal of Physical Chemistry C ( IF 3.3 ) Pub Date : 2019-05-24 , DOI: 10.1021/acs.jpcc.9b00913
Hoa T Phan ₁ , Amanda J Haes ₁

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术语“纳米颗粒稳定性”被广泛用于描述特定的纳米结构性质的保持，该性质范围从聚集，组成，结晶度，形状，尺寸和表面化学。结果，这个包罗万象的术语具有各种含义，这取决于所关注和/或应用的特定纳米颗粒性质。在这篇专题文章中，我们提供了对以下问题的答案：“纳米颗粒的稳定性是什么意思？”。广义上讲，纳米颗粒稳定性的定义取决于所开发的目标尺寸依赖性属性，并且鉴于所有纳米结构在本质上相对于本体状态在热力学和能量上均不利，因此只能存在有限的一段时间。但是，要具体回答这个问题，讨论了纳米粒子稳定性与金属/金属氧化物纳米粒子的物理/化学性质之间的关系。在聚集状态，核心组成，形状，大小和表面化学方面探索了特定的定义。接下来，定义了促进纳米粒子稳定性的机制，并且与这些相同的纳米粒子特性有关。考虑涉及动力学和热力学的度量。概述了提供定量度量的方法，这些度量用于根据核成分，形状，大小和表面化学性质对纳米颗粒的稳定性进行测量和建模。溶液相纳米颗粒的稳定性也受聚集状态的影响。因此，讨论了碰撞理论和DLVO理论。最后，

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更新日期：2019-06-11

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