Abstract
The fundamental characteristics of direct ammonia fuel cell employing anion exchange membrane (AEM) as an electrolyte was evaluated. The fuel cells with three different anodes of Pt/C, Pt–Ru/C, and Ru/C were applied for the performance tests. The open circuit voltage (OCV) was notably lower than the ideal electromotive force of 1.17V and significantly dependent on the electrocatalysts. The OCV achieved was in the following sequence: Pt–Ru/C>Pt/C>Ru/C. Furthermore, the ammonia permeated through the AEM by the solubility–diffusion mechanism and the formation of oxidants such as N2 and NO was detected in the cathode exhaust gas. This result indicates the oxidation of ammonia in the cathode, which will be another factor for the reduction in OCV. Note that OCV and performance continuously decreased during the consecutive I–V characteristic measurements because of the Nad poisoning over the surface of anode catalysts.
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
