Combining synchrotron light with laser technology in catalysis research
(2018) In Journal of Synchrotron Radiation 25(5). p.1389-1394- Abstract
High-energy surface X-ray diffraction (HESXRD) provides surface structural information with high temporal resolution, facilitating the understanding of the surface dynamics and structure of the active phase of catalytic surfaces. The surface structure detected during the reaction is sensitive to the composition of the gas phase close to the catalyst surface, and the catalytic activity of the sample itself may affect the surface structure, which in turn may complicate the assignment of the active phase. For this reason, planar laser-induced fluorescence (PLIF) and HESXRD have been combined during the oxidation of CO over a Pd(100) crystal. PLIF complements the structural studies with an instantaneous two-dimensional image of the... (More)
High-energy surface X-ray diffraction (HESXRD) provides surface structural information with high temporal resolution, facilitating the understanding of the surface dynamics and structure of the active phase of catalytic surfaces. The surface structure detected during the reaction is sensitive to the composition of the gas phase close to the catalyst surface, and the catalytic activity of the sample itself may affect the surface structure, which in turn may complicate the assignment of the active phase. For this reason, planar laser-induced fluorescence (PLIF) and HESXRD have been combined during the oxidation of CO over a Pd(100) crystal. PLIF complements the structural studies with an instantaneous two-dimensional image of the CO2 gas phase in the vicinity of the active model catalyst. Here the combined HESXRD and PLIF operando measurements of CO oxidation over Pd(100) are presented, allowing for an improved assignment of the correlation between sample structure and the CO2 distribution above the sample surface with sub-second time resolution.
(Less)
- author
- organization
- publishing date
- 2018
- type
- Contribution to journal
- publication status
- published
- subject
- keywords
- CO oxidation, high-energy surface X-ray diffraction (HESXRD), Pd(100), planar laser-induced fluorescence (PLIF)
- in
- Journal of Synchrotron Radiation
- volume
- 25
- issue
- 5
- pages
- 6 pages
- publisher
- International Union of Crystallography
- external identifiers
-
- scopus:85053011189
- pmid:30179177
- ISSN
- 0909-0495
- DOI
- 10.1107/S1600577518010597
- language
- English
- LU publication?
- yes
- id
- 8696c263-d060-466b-8db0-e6ac20850d09
- date added to LUP
- 2018-10-12 10:04:09
- date last changed
- 2024-09-17 04:59:04
@article{8696c263-d060-466b-8db0-e6ac20850d09, abstract = {{<p>High-energy surface X-ray diffraction (HESXRD) provides surface structural information with high temporal resolution, facilitating the understanding of the surface dynamics and structure of the active phase of catalytic surfaces. The surface structure detected during the reaction is sensitive to the composition of the gas phase close to the catalyst surface, and the catalytic activity of the sample itself may affect the surface structure, which in turn may complicate the assignment of the active phase. For this reason, planar laser-induced fluorescence (PLIF) and HESXRD have been combined during the oxidation of CO over a Pd(100) crystal. PLIF complements the structural studies with an instantaneous two-dimensional image of the CO<sub>2</sub> gas phase in the vicinity of the active model catalyst. Here the combined HESXRD and PLIF operando measurements of CO oxidation over Pd(100) are presented, allowing for an improved assignment of the correlation between sample structure and the CO<sub>2</sub> distribution above the sample surface with sub-second time resolution.</p>}}, author = {{Blomberg, Sara and Zetterberg, Johan and Gustafson, Johan and Zhou, Jianfeng and Shipilin, Mikhail and Pfaff, Sebastian and Hejral, Uta and Carlsson, Per Anders and Gutowski, Olof and Bertram, Florian and Lundgren, Edvin}}, issn = {{0909-0495}}, keywords = {{CO oxidation; high-energy surface X-ray diffraction (HESXRD); Pd(100); planar laser-induced fluorescence (PLIF)}}, language = {{eng}}, number = {{5}}, pages = {{1389--1394}}, publisher = {{International Union of Crystallography}}, series = {{Journal of Synchrotron Radiation}}, title = {{Combining synchrotron light with laser technology in catalysis research}}, url = {{http://dx.doi.org/10.1107/S1600577518010597}}, doi = {{10.1107/S1600577518010597}}, volume = {{25}}, year = {{2018}}, }