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Topics in Catalysis
Erschienen in: Topics in Catalysis 5-7/2016

29.12.2015 | Original Paper

Real-Time Observation of Reaction Processes of CO2 on Cu(997) by Ambient-Pressure X-ray Photoelectron Spectroscopy

verfasst von: Takanori Koitaya, Susumu Yamamoto, Yuichiro Shiozawa, Kaori Takeuchi, Ro-Ya Liu, Kozo Mukai, Shinya Yoshimoto, Kazuma Akikubo, Iwao Matsuda, Jun Yoshinobu

Erschienen in: Topics in Catalysis | Ausgabe 5-7/2016

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Abstract

The reaction of CO2 on the vicinal Cu(997) surface at 340 K under CO2 gas pressure of 0.8 mbar was investigated by ambient pressure X-ray photoelectron spectroscopy. A main reaction product on the surface was identified as carbonate (CO3), based on estimation of the composition ratio of oxygen to carbon. CO3 was produced on the surface through the reaction of CO2 with oxygen formed from CO2 dissociation. The amount of adsorbed CO3 was increased and saturated as time elapsed. After saturation of adsorbed CO3, atomic oxygen appeared on the surface, indicating that CO2 dissociation into CO and O continued to take place. The present study shows the importance of CO3 intermediate in the CO2 chemistry on stepped Cu surfaces.
Vorheriger Artikel The Partial Oxidation of Methane Over Pd/Al2O3 Catalyst Nanoparticles Studied In-Situ by Near Ambient-Pressure X-ray Photoelectron Spectroscopy
Nächster Artikel A Comparative Ambient Pressure X-ray Photoelectron and Absorption Spectroscopy Study of Various Cobalt-Based Catalysts in Reactive Atmospheres

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Metadaten
Titel
Real-Time Observation of Reaction Processes of CO2 on Cu(997) by Ambient-Pressure X-ray Photoelectron Spectroscopy
verfasst von
Takanori Koitaya
Susumu Yamamoto
Yuichiro Shiozawa
Kaori Takeuchi
Ro-Ya Liu
Kozo Mukai
Shinya Yoshimoto
Kazuma Akikubo
Iwao Matsuda
Jun Yoshinobu
Publikationsdatum
29.12.2015
Verlag
Springer US
Erschienen in
Topics in Catalysis / Ausgabe 5-7/2016
Print ISSN: 1022-5528
Elektronische ISSN: 1572-9028
DOI
https://doi.org/10.1007/s11244-015-0535-1

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