| Texto completo | |
| Autor(es): |
Bossa, Guilherme Volpe
;
Caetano, Daniel Lucas Zago
Número total de Autores: 2
|
| Tipo de documento: | Artigo Científico |
| Fonte: | Physical Chemistry Chemical Physics; v. 26, n. 23, p. 8-pg., 2024-05-31. |
| Resumo | |
The functioning of supercapacitors relies on establishing electrostatic double-layer capacitance across a larger surface area, offering numerous advantages over conventional batteries, such as an extended lifespan and elevated safety standards. The differential capacitance is a fundamental property within the electrical double layer, playing a pivotal role in the advancement of electrical double-layer supercapacitors. In addition to electrostatic interactions, multiple theoretical and experimental studies have indicated that the differential capacitance is influenced by factors such as the physical structure of the electrode, solvent-mediated hydration interactions, and the specific type of electrolyte utilized. In this work, we incorporate hydration interactions into the Poisson-Boltzmann theory to explore curved electrodes whose surfaces can be covered by either acidic or basic groups. We examine how the electrostatic interaction, charge regulation, hydration effects, and the finite size of ions collectively modify the differential capacitance. Furthermore, we explore different scenarios of electrode curvature and how it may be used to achieve larger capacitance depending on the electrolyte type and pH. Supercapacitors offer numerous advantages over conventional batteries. The functioning of supercapacitors relies on the electrostatic double-layer capacitance and it is affected by the electrode geometry and chemical composition. (AU) | |
| Processo FAPESP: | 22/13855-3 - Uma Abordagem de Múltipla Resolução para o Polimorfismo de Agregados Lipopolissacarídicos Induzido por Cations |
| Beneficiário: | Daniel Lucas Zago Caetano |
| Modalidade de apoio: | Bolsas no Brasil - Programa Capacitação - Treinamento Técnico |
| Processo FAPESP: | 21/04283-3 - Uma abordagem de múltipla resolução para o polimorfismo de agregados lipopolissacarídicos induzido por metais |
| Beneficiário: | Thereza Amélia Soares da Silva |
| Modalidade de apoio: | Auxílio à Pesquisa - Regular |