Restructuring of an Ir(210) electrode surface by potential cycling

• Khaled A. Soliman,
• Dieter M. Kolb,
• Ludwig A. Kibler and
• Timo Jacob

Beilstein J. Nanotechnol. 2014, 5, 1349–1356, doi:10.3762/bjnano.5.148

• anisotropically in a preferred direction and reach a height of about 5 nm after 4 h of cycling. The structural changes are reflected in variations of the electrocatalytic activity towards carbon monoxide adlayer oxidation. Keywords: CO adlayer oxidation; cyclic voltammetry; Ir(210) single crystal; potential

• (210) towards CO adlayer oxidation (see below in Figure 8). The high density of atomic steps and kinks of H2-cooled Ir(210) is very similar to that of other high index planes, as in the case of Pt(210) [9]. Since LEED patterns obtained for a clean Ir(210) surface under UHV show a (1×1) structure [21

• of extended vicinal Ir single crystal surfaces [5]. There are striking similarities with Ir(320), Ir(310) and Ir(410), for example. CO adlayer oxidation on Ir(210) Studies of CO oxidation on single crystal electrodes are of practical as well as fundamental interest. From the electrocatalytic point of