Calcium zirconate flame-sprayed structures for possible electrolyte applications. Issue 10 (15th May 2022)

• Record Type: Journal Article
• Authors: Conrad, Cordula; Neumann, Marc; Freiwald, Martin; Gehre, Patrick; Schimpke, Ronny; Priese, Angelika; Aneziris, Christos G.
• Is Part Of: Ceramics international. Volume 48:Issue 10(2022)
• Page Start: 13895
• Page End: 13905
• Publication Date: 2022-05-15
• Subjects: Calcium zirconate -- Flame spraying -- Porosity -- Secondary thermal treatment; Ceramics -- Periodicals; Céramique industrielle -- Périodiques; Ceramics; Periodicals; Electronic journals; 666
• DOI: 10.1016/j.ceramint.2022.01.274
• Languages: English
• ISSNs: 0272-8842

Abstract

Abstract: The usage of tubular proton-conducting solid-state electrolysis cells is a promising method for the production of hydrogen combined with energy storage possibilities. CaZrO3 is a prospective proton-conducting electrolyte material. In the present paper, planar CaZrO3 samples – manufactured by powder-based flame spraying – are characterised in detail by XRD, SEM/EDX, porosity, gas permeability, and roughness measurements. After a secondary thermal treatment, the open porosity was decreased to approx. 6 vol%. Using cylindrical graphite supports, free-standing tubular flame-sprayed (La0.8 Sr0.2 )0.98 MnO3 –CaZrO3 half-cells were generated.