Citation
Bruch, Dorian Wayne (2025) Theoretical Modeling of Interactions Between Electrolytes and Surfaces. Dissertation (Ph.D.), California Institute of Technology. doi:10.7907/eey8-et93. https://resolver.caltech.edu/CaltechTHESIS:08282024-022514845
Abstract
Electrolytes are ubiquitous in science and engineering and are of active interest, owing to their applications biology, energy storage, colloidal suspensions, and even climate. Near a surface, electrolyte solutions exhibit a plethora of rich thermodynamic and structural phenomena, owing to the interplay of long-ranged electrostatics and nonelectrostatic interactions between ionic species, solvent, and the surface. In this thesis, we present a pedagogical formulation for the thermodynamics of electrolyte solutions near charged surfaces, followed by an examination of interactions and structure of different types of electrolytes near surfaces. Specifically, we investigate the difference between constant surface charge and constant surface potential boundaries in electrolyte solutions, the capacitance applications, double-layer structure, and screening behavior of a zwitterionic polymers, as well as the effect of image charge on structure, capacitance, and forces in simple electrolytes near metal, dielectric, and dielectrically-saturated metal surfaces. We conclude with a Gaussian-fluctuation model for ions with soft-core excluded volume interactions.
| Item Type: | Thesis (Dissertation (Ph.D.)) | |||||||||
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| Subject Keywords: | Thermodynamics, Statistical Mechanics, Polymers, Electrolytes | |||||||||
| Degree Grantor: | California Institute of Technology | |||||||||
| Division: | Chemistry and Chemical Engineering | |||||||||
| Major Option: | Chemical Engineering | |||||||||
| Minor Option: | Applied And Computational Mathematics | |||||||||
| Thesis Availability: | Not set | |||||||||
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| Defense Date: | 12 August 2024 | |||||||||
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| Projects: | Thermodynamics of Electrolyte Solutions Near Charged Surfaces: Constant Surface Charge versus Constant Surface Potential, A Model for Zwitterionic Polymers and Their Capacitance Applications, Image Charge Effects Under Metal and Dielectric Boundary Conditions | |||||||||
| Record Number: | CaltechTHESIS:08282024-022514845 | |||||||||
| Persistent URL: | https://resolver.caltech.edu/CaltechTHESIS:08282024-022514845 | |||||||||
| DOI: | 10.7907/eey8-et93 | |||||||||
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| Default Usage Policy: | No commercial reproduction, distribution, display or performance rights in this work are provided. | |||||||||
| ID Code: | 16680 | |||||||||
| Collection: | CaltechTHESIS | |||||||||
| Deposited By: | Dorian Bruch | |||||||||
| Deposited On: | 29 Aug 2024 19:08 | |||||||||
| Last Modified: | 29 Aug 2024 19:08 |
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