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  Probing the effect of surface strain on CO binding to Pd thin films.

Harding, D. J., Bongers, M. D., Wagner, S., Hahn, H., Neugebohren, J., Kitsopoulos, T. N., et al. (2019). Probing the effect of surface strain on CO binding to Pd thin films. The Journal of Physical Chemistry C, 123(19), 12255-12260. doi:10.1021/acs.jpcc.9b01435.

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Item Permalink: https://hdl.handle.net/21.11116/0000-0003-969B-5 Version Permalink: https://hdl.handle.net/21.11116/0000-0003-9BDE-5
Genre: Journal Article

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 Creators:
Harding, D. J., Author
Bongers, M. D., Author
Wagner, S., Author
Hahn, H.1, Author           
Neugebohren, J.1, Author           
Kitsopoulos, T. N.2, Author           
Wodtke, A. M.2, Author           
Pundt, A., Author
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1Department of Dynamics at Surfaces, MPI for Biophysical Chemistry, Max Planck Society, ou_578600              
2Department of Dynamics at Surfaces, MPI for biophysical chemistry, Max Planck Society, ou_578600              

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 Abstract: We report measurements to investigate the effects of mechanical strain on the binding energy of carbon monoxide (CO) on the (111) surface of a 16 nm thin film of palladium (Pd) grown on rutile titanium dioxide (r-TiO2). The lattice mismatch between Pd and the r-TiO2 leads to a tensile mechanical in-plane stress in the Pd layer of approximately 0.38 GPa. We observe an increase of (40 ± 10) kJ mol–1 in the CO binding energy for the 16 nm sample compared to a bulk Pd(111) crystal, which is in qualitative agreement with expectations based on the d-band model.

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Language(s): eng - English
 Dates: 2019-04-112019
 Publication Status: Issued
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 Rev. Type: Peer
 Identifiers: DOI: 10.1021/acs.jpcc.9b01435
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Title: The Journal of Physical Chemistry C
Source Genre: Journal
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Pages: - Volume / Issue: 123 (19) Sequence Number: - Start / End Page: 12255 - 12260 Identifier: -