Electrochemical impedance spectroscopy as a diagnostic tool for passive direct methanol fuel cells

• Tipo: Outra Publicação em Revista Científica Internacional
• Data: 2022

Autores

Braz, BA (Autor) Outra; Cristina Freire (Autor) FCUP; V. B. Oliveira (Autor) FEUP; A.M.F.R. Pinto (Autor) FEUP

Revista

Título: Energy Reports

Vol. 8

Páginas: 7964-7975

ISSN: 2352-4847

Editora: Elsevier

Indexação

ISI Web of Knowledge - 10 Citações

Scopus - 10 Citações

Outras Informações

ID Authenticus: P-00W-VTY

DOI: 10.1016/j.egyr.2022.06.045

Abstract (EN): Passive direct methanol fuel cells (pDMFCs) are a promising power source for portable electronic devices since they achieve higher power densities than the traditional batteries, and use a liquid fuel, methanol, which is easy to handle, storage and distribute. However, some key challenges, such as fuel and water crossover through the membrane and the system durability/lifetime and costs, need to be overcome in order to introduce these systems in the market. The electrochemical impedance spectroscopy (EIS) is used in fuel cell systems as a powerful tool to diagnose the cell behaviour and acquire useful information regarding the different losses that negatively affect the cell performance, towards its optimisation. This paper presents a review of the work developed with pDMFCs using the EIS technique as a diagnostic tool, including the EIS fundamentals and the equivalent electric circuit concept. (C) 2022 The Author(s). Published by Elsevier Ltd.

Idioma: Inglês

Tipo (Avaliação Docente): Científica

Nº de páginas: 12