Compression of a Stearic Acid Surfactant Layer on Water Investigated by Ambient 
Pressure X-ray Photoelectron Spectroscopy

Hoek, Harmen; Gerber, Timm; Richter, Clemens; Dupuy, Remi; Rapf, Rebecca J.; Oertel, Holger; Buttersack, Tillmann; Trotochaud, Lena; Karslıoğlu, Osman; Goodacre, Dana; Blum, Monika; Gericke, Sabrina M.; Buechner, Christin; Rude, Bruce; Mugele, Frieder; Wilson, Kevin R.; Bluhm, Hendrik

doi:10.1021/acs.jpcb.4c00451

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Compression of a Stearic Acid Surfactant Layer on Water Investigated by Ambient Pressure X-ray Photoelectron Spectroscopy

Hoek, H., Gerber, T., Richter, C., Dupuy, R., Rapf, R. J., Oertel, H., et al. (2024). Compression of a Stearic Acid Surfactant Layer on Water Investigated by Ambient Pressure X-ray Photoelectron Spectroscopy. The Journal of Physical Chemistry B, 128(15), 3755-3763. doi:10.1021/acs.jpcb.4c00451.

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Item Permalink: https://hdl.handle.net/21.11116/0000-000F-3DC7-D Version Permalink: https://hdl.handle.net/21.11116/0000-000F-3DCA-A

Genre: Journal Article

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Creators:
Hoek, Harmen, Author
Gerber, Timm, Author
Richter, Clemens¹, Author
Dupuy, Remi¹, Author
Rapf, Rebecca J., Author
Oertel, Holger¹, Author
Buttersack, Tillmann¹, Author
Trotochaud, Lena, Author
Karslıoğlu, Osman, Author
Goodacre, Dana, Author
Blum, Monika, Author
Gericke, Sabrina M., Author
Buechner, Christin, Author
Rude, Bruce, Author
Mugele, Frieder, Author
Wilson, Kevin R., Author
Bluhm, Hendrik¹, Author

Affiliations:
1Inorganic Chemistry, Fritz Haber Institute, Max Planck Society, ou_24023

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Abstract: We present a combined Langmuir-Pockels trough and ambient pressure X-ray photoelectron spectroscopy (APXPS) study of the compression of stearic acid surfactant layers on neat water. Changes in the packing density of the molecules are directly determined from C 1s and O 1s APXPS data. The experimental data are fit with a 2D model for the stearic acid coverage. Based on the results of these proof-of-principle experiments, we discuss the remaining challenges that need to be overcome for future investigations of the role of surfactants in heterogeneous chemical reactions at liquid-vapor interfaces in combined Langmuir-Pockels trough and APXPS measurements.

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Language(s): eng - English

Dates: Modified: 2024-03-14Submitted: 2024-01-22Accepted: 2024-03-18Published Online: 2024-04-05Date issued: 2024-04-18

Publication Status: Issued

Pages: 9

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Rev. Type: Peer

Identifiers: DOI: 10.1021/acs.jpcb.4c00451

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Title: The Journal of Physical Chemistry B

Abbreviation : J. Phys. Chem. B

Source Genre: Journal

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Publ. Info: Washington, D.C. : American Chemical Society

Pages: 9 Volume / Issue: 128 (15) Sequence Number: - Start / End Page: 3755 - 3763 Identifier: ISSN: 1520-6106
CoNE: https://pure.mpg.de/cone/journals/resource/1000000000293370_1