Journal article
Novel micro-reactor flow cell for investigation of model catalysts using in situ grazing-incidence X-ray scattering
Department of Physics, Technical University of Denmark1
Neutrons and X-rays for Materials Physics, Department of Physics, Technical University of Denmark2
Center for Individual Nanoparticle Functionality, Centers, Technical University of Denmark3
Department of Micro- and Nanotechnology, Technical University of Denmark4
Silicon Microtechnology, Department of Micro- and Nanotechnology, Technical University of Denmark5
Department of Energy Conversion and Storage, Technical University of Denmark6
Imaging and Structural Analysis, Department of Energy Conversion and Storage, Technical University of Denmark7
Paul Scherrer Institute8
Surface Physics and Catalysis, Department of Physics, Technical University of Denmark9
The design, fabrication and performance of a novel and highly sensitive micro-reactor device for performing in situ grazing-incidence X-ray scattering experiments of model catalyst systems is presented. The design of the reaction chamber, etched in silicon on insulator (SIO), permits grazing-incidence small-angle X-ray scattering (GISAXS) in transmission through 10 µm-thick entrance and exit windows by using micro-focused beams.
An additional thinning of the Pyrex glass reactor lid allows simultaneous acquisition of the grazing-incidence wide-angle X-ray scattering (GIWAXS). In situ experiments at synchrotron facilities are performed utilizing the micro-reactor and a designed transportable gas feed and analysis system. The feasibility of simultaneous in situ GISAXS/GIWAXS experiments in the novel micro-reactor flow cell was confirmed with CO oxidation over mass-selected Ru nanoparticles.
| Language: | English |
|---|---|
| Publisher: | International Union of Crystallography |
| Year: | 2016 |
| Pages: | 455-463 |
| ISSN: | 16005775 and 09090495 |
| Types: | Journal article |
| DOI: | 10.1107/S1600577516001387 |
| ORCIDs: | Pedersen, Thomas , Andreasen, Jens Wenzel , Nielsen, Martin Meedom , Nielsen, Jane Hvolbæk , Hansen, Ole and Chorkendorff, Ib |
