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- W2077793800 abstract "A novel Pt + Ru electrode material is shown to be highly active for the direct electro-oxidation of methanol in H2SO4 solutions and to show very little tendency to poison. X-ray photoelectron spectroscopy of this material before use as an anode showed that the ruthenium is oxidised and that there is an important surface concentration of oxidised platinum. After prolonged use as a methanol-oxidation anode, the concentration of oxidised platinum is somewhat increased and there is no evidence for any Pt-CO or Pt2 = CO species; rather adsorbed formate is present. These data are consistent with Ru acting as a promoter of active surface oxygen. Dispersion of the Pt and Ru on a pure carbon support gives a much greater performance per gram of precious metal; however, the initial increase in overpotential is greater by over 100 mV. The differences in the catalytic behaviour of these two materials is discussed, and the importance of competing reactions is considered." @default.
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- W2077793800 date "1988-01-01" @default.
- W2077793800 modified "2023-10-01" @default.
- W2077793800 title "Methanol oxidation on unsupported and carbon supported Pt + Ru anodes" @default.
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- W2077793800 doi "https://doi.org/10.1016/0022-0728(88)80318-8" @default.
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