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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How to cite

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://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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