V2EX gouy-chapman model

Gouy-Chapman Model

释义 Definition

Gouy-Chapman model(古伊查普曼模型)是描述电极/带电界面附近电解质溶液中“扩散电双层”的经典理论模型。它用统计分布与电势关系(常与泊松玻尔兹曼方程相关)来解释离子如何在界面附近随距离逐渐衰减地分布。该模型主要适用于较理想、稀溶液与点电荷近似情形;在更高浓度或需要考虑离子尺寸/特异吸附时常需与其他模型结合(如 Stern 模型)。

发音 Pronunciation (IPA)

/wi pmn mdl/

例句 Examples

The Gouy-Chapman model explains the diffuse part of the electric double layer.
古伊查普曼模型解释了电双层中的扩散层部分。

At low ionic strength, the Gouy-Chapman model predicts a thicker diffuse layer and a slower decay of potential away from the charged surface.
在低离子强度条件下,古伊查普曼模型预测扩散层更厚,且电势随远离带电表面而衰减得更慢。

词源 Etymology

该术语来自两位科学家的姓氏:法国物理学家 Louis Georges Gouy 与英国数学家/物理学家 David Leonard Chapman。他们在 20 世纪初分别提出并发展了散电双层的理论框架,因此模型以二人姓氏并列命名。

相关词 Related Words

文献与著作 Literary / Notable Works

  • Gouy, L. G.(1910)关于电解质中界面电荷与扩散层的早期论文(提出相关思想的源头之一)。
  • Chapman, D. L.(1913)提出扩散层理论并给出经典形式的论文(奠定 GouyChapman 理论体系)。
  • Bard & Faulkner,《Electrochemical Methods: Fundamentals and Applications》(电化学教材中常在电双层章节讨论该模型)。
  • Israelachvili,《Intermolecular and Surface Forces》(表面力与双电层理论中常引用 GouyChapman 框架)。
  • Bockris & Reddy,《Modern Electrochemistry》(现代电化学教材中系统介绍电双层模型谱系)。
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