Operando Observation of Oxygenated Intermediates during CO Hydrogenation on Rh Single Crystals

[Image: see text] The CO hydrogenation reaction over the Rh(111) and (211) surfaces has been investigated operando by X-ray photoelectron spectroscopy at a pressure of 150 mbar. Observations of the resting state of the catalyst give mechanistic insight into the selectivity of Rh for generating ethan...

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Detalles Bibliográficos
Autores principales: Degerman, David, Shipilin, Mikhail, Lömker, Patrick, Goodwin, Christopher M., Gericke, Sabrina M., Hejral, Uta, Gladh, Jörgen, Wang, Hsin-Yi, Schlueter, Christoph, Nilsson, Anders, Amann, Peter
Formato: Online Artículo Texto
Lenguaje:English
Publicado: American Chemical Society 2022
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9052753/
https://www.ncbi.nlm.nih.gov/pubmed/35394273
http://dx.doi.org/10.1021/jacs.2c00300
Descripción
Sumario:[Image: see text] The CO hydrogenation reaction over the Rh(111) and (211) surfaces has been investigated operando by X-ray photoelectron spectroscopy at a pressure of 150 mbar. Observations of the resting state of the catalyst give mechanistic insight into the selectivity of Rh for generating ethanol from CO hydrogenation. This study shows that the Rh(111) surface does not dissociate all CO molecules before hydrogenation of the O and C atoms, which allows methoxy and other both oxygenated and hydrogenated species to be visible in the photoelectron spectra.

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