| abstract |
PROBLEM TO BE SOLVED: To provide a highly active methanol oxidation catalyst. A methanol oxidation catalyst containing fine particles having a composition represented by the following general formula (1). The methanol oxidation catalyst characterized in that the element T has a peak area due to oxygen bonds in a spectrum obtained by X-ray photoelectron spectroscopy that is 80% or less of the peak area due to metal bonds. Pt x Ru y T z Q u (1) (In the general formula (1), the T element is at least one selected from the group consisting of Mo, W and V, and the Q element is at least one selected from the group consisting of Nb, Cr, Zr and Ti. X is 40 to 90 at.%, Y is 0 to 9.9 at.%, Z is 10 to 50 at.%, And u is 0.5 to 20 at.%.) [Selection figure] None |