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- Title
In‐situ X‐Ray Absorption Near Edge Structure Spectroscopy of a Solid Catalyst using a Laboratory‐Based Set‐up.
- Authors
Moya‐Cancino, José G.; Honkanen, Ari‐Pekka; van der Eerden, Ad M. J.; Schaink, Herrick; Folkertsma, Lieven; Ghiasi, Mahnaz; Longo, Alessandro; de Groot, Frank M. F.; Meirer, Florian; Huotari, Simo; Weckhuysen, Bert M.
- Abstract
An in‐situ laboratory‐based X‐ray Absorption Near Edge Structure (XANES) Spectroscopy set‐up is presented, which allows performing long‐term experiments on a solid catalyst at relevant reaction conditions of temperature and pressure. Complementary to research performed at synchrotron radiation facilities the approach is showcased for a Co/TiO2 Fischer‐Tropsch Synthesis (FTS) catalyst. Supported cobalt metal nanoparticles next to a (very small) fraction of cobalt(II) titanate, which is an inactive phase for FTS, were detected, with no signs of re‐oxidation of the supported cobalt metal nanoparticles during FTS at 523 K, 5 bar and 200 h, indicating that cobalt metal is maintained as the main active phase during FTS. A novel X‐ray Absorption Near Edge Structure Spectroscopy set‐up is introduced, which allows to perform long‐term studies of solid catalysts under realistic reaction conditions in a laboratory environment. Its potential has been illustrated for a Co/TiO2 Fischer‐Tropsch Synthesis catalyst, highlighting that re‐oxidation of the active metallic phase did not occur.
- Subjects
X-ray absorption; SYNCHROTRON radiation; COBALT; CHEMICAL reactions; METAL nanoparticles
- Publication
ChemCatChem, 2019, Vol 11, Issue 3, p1039
- ISSN
1867-3880
- Publication type
Article
- DOI
10.1002/cctc.201801822