Re:Using copper to convert CO₂ to methane
by marcosdumay on Sunday July 07, 2024 @02:28PM
(#40899459)
Why would you need something that complex in a fuel cell? You don't need high selectivity.
AFAIK, ceramic membranes work perfectly well as exchange elements for hydrocarbon-oxygen fuel cells; but I have no idea why they aren't being used everywhere. It used to be mostly due to longevity issues, but I haven't kept up.
Also, Faradaic efficiency is not the total efficiency. For a fuel cell it would automatically be close to 100% anyway, while total efficiency is normally much lower.
AFAIK, ceramic membranes work perfectly well as exchange elements for hydrocarbon-oxygen fuel cells; but I have no idea why they aren't being used everywhere. It used to be mostly due to longevity issues, but I haven't kept up.
Also, Faradaic efficiency is not the total efficiency. For a fuel cell it would automatically be close to 100% anyway, while total efficiency is normally much lower.