Pyridine on flat Pt(111) and stepped Pt(355) - An in situ HRXPS investigation of adsorption and thermal evolution
Steinrück HP, Welke M, Eilert A, Denecke R, Schoeppke M, Wöckel C (2016)
Publication Status: Published
Publication Type: Journal article
Publication year: 2016
Journal
Publisher: American Institute of Physics (AIP)
Book Volume: 144
Article Number: 014702
Journal Issue: 1
DOI: 10.1063/1.4939527
Abstract
We investigated the adsorption and reaction of pyridine on flat Pt(111) and stepped Pt(355) surfaces via high-resolution in situ x-ray photoelectron spectroscopy. The surfaces were exposed to pyridine at temperatures between 112 and 300 K while simultaneously recording XP spectra. Subsequently, the crystals were annealed and the temperature dependencies of the N 1s and C 1s core levels were studied again in a continuous and quantitative way. Various surface species were found, namely, physisorbed, flat-lying and end-on pyridine, α-pyridyl species on the terraces and on the steps and several unidentified high temperature species. We were able to show an influence of the steps of Pt(355) by pre-adsorbing silver next to the step, which selectively suppresses the step adsorption.
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APA:
Steinrück, H.-P., Welke, M., Eilert, A., Denecke, R., Schoeppke, M., & Wöckel, C. (2016). Pyridine on flat Pt(111) and stepped Pt(355) - An in situ HRXPS investigation of adsorption and thermal evolution. Journal of Chemical Physics, 144(1). https://dx.doi.org/10.1063/1.4939527
MLA:
Steinrück, Hans-Peter, et al. "Pyridine on flat Pt(111) and stepped Pt(355) - An in situ HRXPS investigation of adsorption and thermal evolution." Journal of Chemical Physics 144.1 (2016).
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