How to determine ΔEo of a compound?
Posted: Thu Jan 02, 2014 8:23 pm
Hello,
My project this year relates to fuel cell catalysts (see right) and I've been doing research on the topic.
By looking at volcano plots of catalysts, I've figured out that the effectiveness of a fuel cell catalyst is determined by change in standard electrode potential of the catalysts (ΔEo). Δ Eo is equal to Eo(reduction) - Eo(oxidation). For platinum [the control], ΔEo = 1.18 - (-1.18) = 1.18 + 1.18 = 2.36 volts.
My question is: I want to know how to determine ΔEo for a compound, for example, aluminum fluoride which is AlF3. I'm thinking it might be something like:
ΔEo of AlF3 = ΔEo of Al + ΔEo of F
OR
ΔEo of AlF3 = (Eo reduction of Al + Eo reduction of F) - (Eo oxidation of Al + Eo oxidation of F).
Can you tell me the formula for ΔEo for a compound?
Thank you,
candy4me
My project this year relates to fuel cell catalysts (see right) and I've been doing research on the topic.
By looking at volcano plots of catalysts, I've figured out that the effectiveness of a fuel cell catalyst is determined by change in standard electrode potential of the catalysts (ΔEo). Δ Eo is equal to Eo(reduction) - Eo(oxidation). For platinum [the control], ΔEo = 1.18 - (-1.18) = 1.18 + 1.18 = 2.36 volts.
My question is: I want to know how to determine ΔEo for a compound, for example, aluminum fluoride which is AlF3. I'm thinking it might be something like:
ΔEo of AlF3 = ΔEo of Al + ΔEo of F
OR
ΔEo of AlF3 = (Eo reduction of Al + Eo reduction of F) - (Eo oxidation of Al + Eo oxidation of F).
Can you tell me the formula for ΔEo for a compound?
Thank you,
candy4me