3D printing of cubic zirconia lattice supports for hydrogen production

0575097 - ÚT 2024 RIV GB eng J - Journal Article
Díaz-Herrezuelo, I. - Koller, Martin - Quintanilla, A. - Vega, G. - Casas, J. A. - Pérez-Coll, D. - Seiner, Hanuš - Osendí, M. I. - Miranzo, P. - Belmonte, M.
3D printing of cubic zirconia lattice supports for hydrogen production.
Ceramics International. Roč. 49, č. 13 (2023), s. 22529-22536. ISSN 0272-8842. E-ISSN 1873-3956
R&D Projects: GA MŠMT(CZ) EF18_053/0017555
Institutional support: RVO:61388998
Keywords : 3D printing * zirconia * ceramic supports * catalysts * hydrogen production
OECD category: Ceramics
Impact factor: 5.2, year: 2022
Method of publishing: Open access
https://www.sciencedirect.com/science/article/pii/S0272884223010349

The demand for hydrogen has extraordinarily grown during the last years, being one of the most attractive forms of fuels to produce green energy. Cubic zirconia ceramics are considered promising catalytic supports, and the additive manufacturing of porous 3D structures based on these ceramics could enhance their catalytic performance. Herein, lightweight highly porous (up to 88%) 3D patterned 8 mol% yttria-stabilized cubic zirconia (8YSZ) scaffolds are manufactured by robocasting from pseudoplastic aqueous-based inks to produce catalytic supports for the hydrogen (H2) production. These scaffolds are thermally treated at temperatures ranging be-tween 1000 and 1400 °C and, hence, mechanically and electrically characterized. 3D 8YSZ structures sintered at 1200 °C, with an appropriate balance between high porosity (86%) and compressive strength (3.7 MPa), are impregnated with palladium (Pd) catalytic nanoparticles and employed in the catalytic dehydrogenation of renewable formic acid (FA) using a fixed-bed reactor. 3D Pd/8YSZ catalyst leads to the continuous production of CO-free H2 with a FA conversion of 32% at T = 55 °C.
Permanent Link: https://hdl.handle.net/11104/0345295