Improved asymmetrical honeycomb monolith catalyst prepared using a 3D printed template

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Title: Improved asymmetrical honeycomb monolith catalyst prepared using a 3D printed template
Authors: Davó-Quiñonero, Arantxa | Sorolla-Rosario, Débora | Bailón-García, Esther | Lozano-Castello, Dolores | Bueno López, Agustín
Research Group/s: Materiales Carbonosos y Medio Ambiente
Center, Department or Service: Universidad de Alicante. Departamento de Química Inorgánica
Keywords: 3D printing | Heterogeneous catalyst | Reaction rate | CO-PROX | CO oxidation
Knowledge Area: Química Inorgánica
Issue Date: 15-Apr-2019
Publisher: Elsevier
Citation: Journal of Hazardous Materials. 2019, 368: 638-643. doi:10.1016/j.jhazmat.2019.01.092
Abstract: An improved honeycomb-like monolith with asymmetrical channels, where the channels section decrease along the monolith, was fabricated using a template prepared by 3D printing. A reference honeycomb monolith was also prepared in the same way but with conventional straight channels. Cu/Ceria active phase was loaded on these supports, and SEM-EDX, Raman spectroscopy and XRD showed that the supported active phase is similar on both monoliths. The supported catalysts were tested for CO oxidation in excess oxygen and for preferential CO oxidation in H2-rich mixtures (CO-PROX), and the catalyst with the improved support achieved higher conversions in both reactions. The supported catalyst with asymmetrical channels has two benefits with regard to the counterpart catalyst with conventional symmetrical channels: improves the reaction rate with regard to the conventional one because fits better to the equation rate, and favors the turbulent regime of gases with regard to the laminar flow that prevails in symmetrical channels.
Sponsor: This work was supported by the Spanish Ministry of Economy and Competitiveness (Projects MAT2014-61992-EXP and CTQ2015-67597-C2-2-R), Spanish Ministry of Education, Culture and Sports (grant FPU14/01178), Generalitat Valenciana (Project PROMETEO/2018/076) and EU (FEDER funding).
ISSN: 0304-3894 (Print) | 1873-3336 (Online)
DOI: 10.1016/j.jhazmat.2019.01.092
Language: eng
Type: info:eu-repo/semantics/article
Rights: © 2019 Elsevier B.V.
Peer Review: si
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Appears in Collections:INV - MCMA - Artículos de Revistas

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