Abstract
As cathode electrocatalysts for alkaline anion exchange membrane fuel cells (AAEMFCs), La0.8Sr0.2MnO3+δ electrocatalysts were synthesized by Pechini's method at various heat treatment temperatures (HTT). With HTT increase from 600 to 900°C, the surface area gradually decreased 30.6 to 6.0m2g−1, while impurity phase was not detected for all HTTs. The specific activity for the oxygen reduction reaction was analyzed to increase with HTT up to 45.8±6.4μAcm−2 at 0.8V vs. RHE, which could be correlated with the Mn eg filling increase from 0.52 (600°C) to 0.70 (900°C). Therefore, the mass activity, which equals to the product of specific activity and surface area, showed maximum value (6.33±0.63Ag−1) at HTT of 700°C.
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.
