Broadband Sum Frequency Generation Studies of Surface Intermediates Involved in Fuel Cell Electrocatalysis - Fuel Cell Catalysis: A Surface Science Approach - page 391

Figure 12.17 Representation of a scanning tunneling microscope image of Ru spontaneously
deposited on a Pt(111) surface [Crown et al., 2002]. The Ru coverage was about 0.2 ML. (Ru is
in white on the figure and inset.) The inset indicates that monoatomic Ru deposition predomi-
nates; diatomic deposition is found only with 10% of the Ru deposit.
Figure 12.18 Voltammetric CO stripping from a Pt(111)/Ru electrode (Ru coverage approxi-
mately 0.2 ML) to a CO-free 0.1 M H 2 SO 4 solution. The baseline voltammogram from Pt(111)/
Ru after CO stripping is shown. The scan rate was 1 mV/s. CO was adsorbed at 0 V for 5 min-
utes, and was purged from solution by Ar bubbling for 25 minutes.