in photocatalytic water splitting, hydrogenation of C=C bond, Pt and Pd are more active than other metals. why is this? is it because their special electronic structure? if so, how this structure affect their activity?
Hi.
It has to do with 2 main factors: 1- their electronic structure, and 2- redox potential.
Read this article. It's a very good read.
Article Ethylene hydrogenation on supported Ni, Pd and Pt nanopartic...
Hello Xu Xuanwen,
Where did you find this table? Could you send me the reference, please?
BW
Anna
Transitional metals Pt & Pd due to electronic structure and redox potential , variable oxidation states leaves their surface active for adsorption & desorption of H2 gas .
it is most probably due to the surface electronic structure and their extended d-band, which make them highly active for hydrogenation reactions.
The most important advantage using Platinum and palladium highly active catalysts because these catalysts operate at lower temperatures and lower pressures of H2.
it due to the special electronic structure of Pt and Pd
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