Figure 2. a. Pt 4f XPS spectra of Pt@C and Pt-Ir@C catalysts, b. Ir 4d spectra of Pt@C and Pt-Ir@C catalysts

From

The Effect of Iridium Addition to Platinum on the Alcohol Electrooxidation Activity

Ozlem Sahin, Hilal Kivrak, Mustafa Karaman, Dilan Atbas

American Journal of Materials Science and Engineering. 2015, 3(1), 15-20 doi:10.12691/ajmse-3-1-4