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Surface X-ray scattering of high index plane of platinum containing kink atoms in solid–liquid interface: Pt(310)=3(100)–(110)
- Source :
- Electrochimica Acta. 53:6070-6075
- Publication Year :
- 2008
- Publisher :
- Elsevier BV, 2008.
-
Abstract
- Surface structure of Pt(3 1 0) = 3(1 0 0)–(1 1 0), which contains kink atoms in the step, has been determined with the use of in situ surface X-ray scattering (SXS) in the double layer region (0.50 V(RHE)) in 0.1 M HClO 4 . Clean Pt(3 1 0) surface has pseudo (1 × 1) structure on which lateral displacements of 2–9% and 0.3–1% are found along a and b directions, respectively, whereas the surfaces of Pt(1 1 0) = 2(1 1 1)–(1 1 1) and Pt(3 1 1) = 2(1 0 0)–(1 1 1) are reconstructed to (1 × 2) according to previous reports. Interlayer spacing between the first and the second layers d 12 is contracted about 5% compared with the bulk spacing, whereas those between underlying layers are expanded down to fourth layer. Fully adsorbed CO has no effect on the surface structure of Pt(3 1 0). This result differs from that on Pt(1 1 1), where d 12 is expanded after CO adsorption.
Details
- ISSN :
- 00134686
- Volume :
- 53
- Database :
- OpenAIRE
- Journal :
- Electrochimica Acta
- Accession number :
- edsair.doi...........e7d2c61c9f7e591e9ae7b2d9790dc32f