Second cycle is dead: Advanced electrode diagnostics for high-temperature polymer electrolyte fuel cells

23Citations
Citations of this article
24Readers
Mendeley users who have this article in their library.

Abstract

In order to achieve reliable data regarding high temperature polymer electrolyte fuel cell (HT-PEFC) electrode degradation novel diagnostic techniques for the determination of the electrochemically active surface area (ECSA) were developed. Cyclovoltammetric CO-monolayer oxidation (CO stripping) charge measurements were combined with real-time CO2 exhaust gas analysis. Different evaluating methods were developed to overcome the problem of side reactions during CO stripping. Furthermore, a calibration curve for absolute ECSA determination via CO stripping was established, eliminating the temperature dependency of CO adsorption. In addition, these methods were successfully extended and implemented to locally resolved ECSA measurements. In summary, this paper introduces novel fundamental HT-PEFC electrode diagnostics for improved understanding of degradation phenomena. (C) 2014 The Electrochemical Society. All rights reserved.

Cite

CITATION STYLE

APA

Engl, T., Waltar, K. E., Gubler, L., & Schmidt, T. J. (2014). Second cycle is dead: Advanced electrode diagnostics for high-temperature polymer electrolyte fuel cells. Journal of the Electrochemical Society, 161(4), F500–F505. https://doi.org/10.1149/2.072404jes

Register to see more suggestions

Mendeley helps you to discover research relevant for your work.

Already have an account?

Save time finding and organizing research with Mendeley

Sign up for free