Direct Ink Writing of cobalt-zirconia monoliths for catalytic applications: A novel single-step fabrication approach
Year: 2024
Type: article
Abstract: Additive manufacturing technologies are revolutionizing the fabrication of ceramic catalysts through hierarchical design to enhance catalytic performance and simultaneously improving the efficiency of the manufacturing process by decreasing the initial investment and production steps. This work proposes a fabrication process of cobalt-zirconia monoliths based on Direct-Ink Writing of Co-enriched hydrogel-based ceramic inks, and the debinding and sintering at 600ºC in a single thermal treatment. The effect of Co precursor amount (3.0 −7.0 wt% Co) on the rheological properties of inks and the catalytic performance in ethanol steam reforming is investigated. The results reveal the successful incorporation of Co into rectilinear monoliths with 50 % infill, obtaining strongly Co-rich surfaces. The remarkable catalytic performance of the 5.0 wt% Co monolith at 300–600ºC confirms the feasibility of this novel single-step approach, reaching an appropriate balance between catalytic activity and printability. This outcome may represent a push towards the fabrication of fully 3D-printed monolithic catalysts.
Authors: Seyed Ali Razavi, Gemma Fargas, Tània Vilella, Isabel Serrano, Miguel Ángel Laguna-Bercero, Luis Llanes, Daniel Rodríguez, Maria-Pau Ginebra, Jordi Llorca, Miguel Morales
Institutions: Universitat Politècnica de Catalunya, Sant Joan de Déu Research Foundation, Institut de Recerca Sant Joan de Déu, Universidad de Zaragoza, Instituto de Nanociencia y Materiales de Aragón, Instituto de Salud Carlos III, Biomedical Research Networking Center in Bioengineering, Biomaterials and Nanomedicine, Centro de Investigación Biomédica en Red, Barcelona Institute of Science and Technology, Institute for Bioengineering of Catalonia
Language: English
Subfield: Automotive Engineering
Field: Engineering
Domain: Physical Sciences
Open Access status: hybrid
Estimated APC paid: $3,900
Funders: Banco Santander, Ministerio de Ciencia, Innovación y Universidades, European Commission, Generalitat de Catalunya, Federación Española de Enfermedades Raras, Departament d'Innovació, Universitats i Empresa, Generalitat de Catalunya, Institució Catalana de Recerca i Estudis Avançats, Universidad de Zaragoza, Gobierno de Aragón, Universitat Politècnica de Catalunya, Agència de Gestió d'Ajuts Universitaris i de Recerca, Direction Générale de l’Armement
OpenAlex ID: W4405106443