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  In situ studies of methanol decomposition and oxidation on Pd(111) by PM-IRAS and XPS spectroscopy

Borasio, M., de la Fuente, O. R., Rupprechter, G., & Freund, H.-J. (2005). In situ studies of methanol decomposition and oxidation on Pd(111) by PM-IRAS and XPS spectroscopy. The Journal of Physical Chemistry B, 109(38), 17791-17794. doi:10.1021/jp053855c.

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Item Permalink: https://hdl.handle.net/11858/00-001M-0000-0011-07A8-4 Version Permalink: https://hdl.handle.net/11858/00-001M-0000-0011-07AA-F
Genre: Journal Article

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 Creators:
Borasio, Marta1, Author           
de la Fuente, Oscar Rodriguez1, Author           
Rupprechter, Günther1, Author           
Freund, Hans-Joachim1, Author           
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1Chemical Physics, Fritz Haber Institute, Max Planck Society, ou_24022              

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 Abstract: Methanol decomposition and oxidation on Pd(111) at millibar pressure were studied by in situ polarization-modulation infrared reflection absorption spectroscopy (PM-IRAS), on-line gas chromatography and pre- and postreaction X-ray photoelectron spectroscopy (XPS). Various dehydrogenation products such as methoxy CH3O, formaldehyde CH2O, formyl CHO, and CO could be spectroscopically identified. Methanol oxidation proceeds via dehydrogenation to formaldehyde CH2O, which either desorbs or is further dehydrogenated to CO, which is subsequently oxidized to CO2. Carbonaceous overlayers that are present during the reaction may favorably affect the selectivity toward CH2O. The reaction takes place on metallic Pd, and no indications of an involvement of Pd surface oxide were observed.

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Language(s): eng - English
 Dates: 2005-08-31
 Publication Status: Issued
 Pages: -
 Publishing info: -
 Table of Contents: -
 Rev. Type: Peer
 Identifiers: eDoc: 241793
URI: http://pubs.acs.org/cgi-bin/abstract.cgi/jpcbfk/2005/109/i38/abs/jp053855c.html
DOI: 10.1021/jp053855c
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Title: The Journal of Physical Chemistry B
Source Genre: Journal
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Publ. Info: Washington, D.C. : American Chemical Society
Pages: - Volume / Issue: 109 (38) Sequence Number: - Start / End Page: 17791 - 17794 Identifier: ISSN: 1520-6106
CoNE: https://pure.mpg.de/cone/journals/resource/1000000000293370_1