Multilayered Ceramic Membrane with Ion Conducting Thin Layer Induced by Interface Reaction for Stable Hydrogen Production. (24th November 2022)

• Record Type: Journal Article
• Authors: He, Guanghu; Lan, Qianqian; Liu, Mengke; Wu, Guixuan; Dunin‐Borkowski, Rafal E.; Jiang, Heqing
• Is Part Of: Angewandte Chemie. Volume 135:Number 6(2023)
• Page Start: n/a
• Page End: n/a
• Publication Date: 2022-11-24
• Subjects: Hydrogen Production -- Interface Reaction -- Ion Conducting Thin Layer -- Multilayered Ceramic Membrane -- Oxygen Permeable Membrane; Chemistry -- Periodicals; 540
• DOI: 10.1002/ange.202210485
• Languages: English
• ISSNs: 0044-8249

Abstract

Abstract: Conventional methods for fabricating multilayered ceramic membranes with ion conducting dense thin layers are often cumbersome, costly, and limited by poor adhesion between layers. Inspired by the architectural structure of the rooted grasses in soil, here, we report an interface‐reaction‐induced reassembly approach for the direct fabrication of Ce0.9 Gd0.1 O2− δ (CGO) thin layers rooted in the parent multilayered ceramic membranes by only one firing step. The CGO dense layers are very thin, and adhered strongly to the parent support layer, ensuring low ionic transport resistance and structural integrity of the multilayered membranes. When using as an oxygen permeable membrane for upgrading fossil‐fuel‐derived hydrogen, it shows very long durability in harsh conditions containing H2 O, CH4, H2, CO2 and H2 S. Furthermore, our approach is highly scalable and applicable to a wide variety of ion conducting thin layers, including Y0.08 Zr0.92 O2− δ, Ce0.9 Sm0.1 O2− δ and Ce0.9 Pr0.1 O2− δ . Abstract : Inspired by the architectural structure of the rooted grasses in soil, an interface‐reaction‐induced reassembly approach for the direct fabrication of ion‐conducting thin layers rooted in multilayered ceramic membranes has been developed. This novel technique paves the way for the development of high‐performance multilayered ceramics with functional layers for various applications, from ceramic fuel cells and membrane reactors to gas sensors.