A1 Journal article (refereed)
Binding Behavior of Carbonmonoxide to Gold Atoms on Ag(001) (2020)

Kuhness, D., Pal, J., Yang, H. J., Mammen, N., Honkala, K., Häkkinen, H., Schneider, W.-D., Heyde, M., & Freund, H.-J. (2020). Binding Behavior of Carbonmonoxide to Gold Atoms on Ag(001). Topics in Catalysis, 63(15-18), 1578-1584. https://doi.org/10.1007/s11244-020-01290-3

JYU authors or editors

Mammen, Nisha
Honkala, Karoliina
Häkkinen, Hannu

Publication details

All authors or editors: Kuhness, David; Pal, Jagriti; Yang, Hyun Jin; Mammen, Nisha; Honkala, Karoliina; Häkkinen, Hannu; Schneider, Wolf-Dieter; Heyde, Markus; Freund, Hans-Joachim

Journal or series: Topics in Catalysis

ISSN: 1022-5528

eISSN: 1572-9028

Publication year: 2020

Volume: 63

Issue number: 15-18

Pages range: 1578-1584

Publisher: Springer

Publication country: United States

Publication language: English

DOI: https://doi.org/10.1007/s11244-020-01290-3

Publication open access: Openly available

Publication channel open access: Partially open access channel

Publication is parallel published (JYX): https://jyx.jyu.fi/handle/123456789/71009

Abstract

The adsorption behavior of single CO molecules at 4 K bound to Au adatoms on a Ag(001) metal surface is studied with scanning tunneling microscopy (STM) and inelastic electron tunneling spectroscopy (IETS). In contrast to earlier observations two different binding configurations are observed—one on top of a Au adatom and the other one adsorbed laterally to Au on Ag(001). Moreover, IETS reveals different low-energy vibrational energies for the two binding sites as compared to the one for a single CO molecule bound to Ag(001). Density functional theory (DFT) calculations of the adsorption energies, the diffusion barriers, and the vibrational frequencies of the CO molecule on the different binding sites rationalize the experimental findings.

Keywords: gold; adsorption

Free keywords: CO; Au; Ag(001); adsorption

Fields of science: