| Zugriffsnummer | 49028 |
| Dokumenttyp | Zeitschriftenartikel |
| Peer Review | mit Peer Review |
| Sprache | Englisch |
| Titel | In situ gas cell for the analysis of adsorption behaviour on surfaces using X-ray spectroscopy |
| Autor(in); Institution |
Grötzsch, Daniel; Technische Universität Berlin (TU-Berlin), Berlin, GERMANY
Weser, Jan; 7.2, Röntgenmesstechnik mit Synchrotronstrahlung, PTB-Berlin
Nutsch, Andreas; 7.2, Röntgenmesstechnik mit Synchrotronstrahlung, PTB-Berlin
Malzer, Wolfgang; Technische Universität Berlin (TU-Berlin), Berlin, GERMANY
Beckhoff, Burkhard; 7.2, Röntgenmesstechnik mit Synchrotronstrahlung, PTB-Berlin
Kanngießer, Birgit; Technische Universität Berlin (TU-Berlin), Berlin, GERMANY
Mantouvalou, Ioanna; Helmholtz Zentrum Berlin (HZB), Berlin, GERMANY
|
| Quelle/Jahr | Applied Surface Science: 609 (2023), 8 S. |
| Artikelnummer | 155179 |
| ISSN | 0169-4332 (PRINT) ; 1873-5584 (ONLINE) |
| DOI | |
| Verlag | Amsterdam: Elsevier B. V. |
| Freie Schlagworte | In situ gas cell ; Surface adsorption ; Volatile organic compounds ; VOCs ; Soft X-ray spectroscopy ; X-ray absorption spectroscopy ; XASX-ray fluorescence analysis ; XRF |
| Zusammenfassung | A gas cell for in-situ measurements of Volatile Organic Compounds (VOCs) and their adsorption behaviour on different surfaces by means of X-ray Fluorescence (XRF) and X-ray Absorption Fine-Structure (XAFS) spectroscopy has been developed. The cell is especially designed to allow for the efficient excitation and detection of low-Z elements such as carbon, oxygen or nitrogen as main components of VOCs. Two measurement modes are available. In the surface mode, adsorption on a surface can be studied using XAFS by fluorescence detection under shallow angles of incidence. The transmission mode enables the simultaneous investigation of gaseous samples via XAFS in transmittance and fluorescence detection modes. Proof-of-principle experiments were performed at the PTB plane grating monochromator beamline for soft X-ray radiation at the synchrotron radiation facility BESSY II. The flexible design and high versatility of the cell are demonstrated with the investigation of ethanol (EtOH) as one of the most abundant VOCs. The comparison of Near-Edge X-ray Absorption Fine-Structure (NEXAFS) spectra under transmission and fluorescence detection in the gas phase with measurements of adsorbed molecules on a Si-wafer surface both at the C and O-K absorption edges proves the applicability of the cell for the monitoring of adsorption processes. |
| Themenbereich der Metrologie | Photometrie und Radiometrie |
Zitierung
Streeck, C., Grötzsch, D., Weser, J., Nutsch, A., Malzer, W., Beckhoff, B., Kanngießer, B., & Mantouvalou, I. (2023). In situ gas cell for the analysis of adsorption behaviour on surfaces using X-ray spectroscopy. Applied Surface Science, 609, 8 S. https://doi.org/10.1016/j.apsusc.2022.155179