AI Article Synopsis
- Modification of H(1)-e Pt with Bi leads to noticeable changes in CO stripping voltammetry, including the disappearance of the pre-wave and the emergence of CO and Bi oxidation peaks.
- The loss of the pre-wave indicates that Bi selectively adsorbs on the pore walls' trough sites, which are 1.8 nm in diameter.
- This selective adsorption prevents oxygenated species from forming in those areas, altering the electrochemical behavior of the surface.
Article Abstract
Modification of the surface of H(1)-e Pt with Bi causes significant changes in the CO stripping voltammetry; the pre-wave disappears and CO and Bi oxidation peaks appear. The absence of the pre-wave suggests that Bi preferentially adsorbs on the trough sites of the concave 1.8 nm diameter pore walls preventing oxygenated species from nucleating there.
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| http://dx.doi.org/10.1039/c1cp21741k | DOI Listing |
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