Szczegóły publikacji
Opis bibliograficzny
High pressure microreactor for minute amounts of catalyst on planar supports: a case study of $CO_{2}$ hydrogenation over $Pd_{0.25}Zn_{0.75}O_{x}$ nanoclusters / Imran Abbas, Filippo Romeggio, Kacper PILARCZYK, Simon Kuhn, Christian Danvad Damsgaard, Jakob Kibsgaard, Peter Lievens, Didier Grandjean, Ewald Janssens // Chemical Engineering Journal ; ISSN 1385-8947. — 2025 — vol. 503 art. no. 158127, s. 1-12. — Bibliogr. s. 11–12, Abstr. — Publikacja dostępna online od: 2024-11-29. — K. Pilarczyk - dod. afiliacja: KU Leuven, Belgium
Autorzy (9)
- Abbas Imran
- Romeggio Filippo
- AGHPilarczyk Kacper
- Kuhn Simon
- Damsgaard Christian Danvad
- Kibsgaard Jakob
- Lievens Peter
- Grandjean Didier
- Janssens Ewald
Słowa kluczowe
Dane bibliometryczne
| ID BaDAP | 159123 |
|---|---|
| Data dodania do BaDAP | 2025-05-09 |
| Tekst źródłowy | URL |
| DOI | 10.1016/j.cej.2024.158127 |
| Rok publikacji | 2025 |
| Typ publikacji | artykuł w czasopiśmie |
| Otwarty dostęp |  |
| Czasopismo/seria | Chemical Engineering Journal |
Abstract
High-pressure studies of well-defined catalysts, deposited on planar supports in ultra-high vacuum using physical methods, may bridge the gap between surface science and applied catalysis approaches in order to develop better catalysts for crucial reactions such as CO2 hydrogenation. However, the chemical reactors necessary for such investigations, typically involving catalyst quantities down to a few hundred nanograms, are lacking. We present the novel design and evaluation of a 50 µL rectangular microchannel reactor capable of testing small quantities of catalyst at pressures up to 40 bar and temperatures up to 240 °C. To evaluate the microreactor performance, Pd0.25Zn0.75Ox nanoclusters soft-landed on SiO2-coated mica sheets using the cluster beam deposition technique, were tested for CO2 hydrogenation via the reverse water–gas shift reaction through a series of kinetic experiments. Experimental results, combined with computational fluid dynamics and mass transport analysis, demonstrate that the proposed microreactor setup allows for testing minute quantities of catalysts with very high sensitivity at industrially relevant temperatures and pressures. Although not restricted to a particular catalyst preparation method, the setup is an excellent platform for conducting catalytic tests on composition-controlled, mass-selected, gas-phase nanoparticles deposited on planar substrates, facilitating the determination of reliable structure–activity relationships and enabling a more rational design of catalysts.