1 research outputs found
Electronic Effect in Methanol Dehydrogenation on Pt Surfaces: Potential Control during Methanol Electrooxidation
Establishing
a relationship between the catalytic activity and
electronic structure of a transition-metal surface is important in
the prediction and design of a new catalyst in fuel cell technology.
Herein, we introduce a novel approach for identifying the methanol
oxidation reactions, especially focusing on the effect of the Pt electronic
structure on methanol dehydrogenation. By systematically controlling
the electrode potential, we simplified the reaction paths, excluding
other unfavorable effects, and thereby obtained only the methanol
dehydrogenation activity in terms of the electronic structure of the
Pt surface. We observed that the methanol dehydrogenation activity
of Pt decreases when the position of the d-band center relative to
the Fermi level is lower, and this fundamental relation provides advanced
insight into the design of an optimal catalyst as the anode for direct
methanol fuel cells