Evaluation of hydrogen separation performance of Ni-BaCe0.85Fe0.15O3-δ cermet membranes. Issue 8 (1st June 2019)

• Record Type: Journal Article
• Authors: Zhuang, Libin; Li, Jiaqi; Xue, Jian; Jiang, Zhouyang; Wang, Haihui
• Is Part Of: Ceramics international. Volume 45:Issue 8(2019)
• Page Start: 10120
• Page End: 10125
• Publication Date: 2019-06-01
• Subjects: Ceramic-metal membrane -- Hydrogen separation -- Protonic conductor -- Dual phase; Ceramics -- Periodicals; Céramique industrielle -- Périodiques; Ceramics; Periodicals; Electronic journals; 666
• DOI: 10.1016/j.ceramint.2019.02.059
• Languages: English
• ISSNs: 0272-8842

Abstract

Abstract: Adding metal phase as the electronic transport channels in mixed protonic and electronic conductors is an effective method to enhance the conductivity and hydrogen permeability. Ceramic-metal (cermet) Ni-BaCe0.85 Fe0.15 O3-δ (Ni-BCF8515) dual-phase membranes were successfully fabricated in this article, where BaCe0.85 Fe0.15 O3-δ (BCF8515) served as the protonic conductor and Ni acted as the electronic conductor. The hydrogen permeability of Ni-BCF8515 dual-phase membrane was improved apparently, reaching 0.325 mL min −1 cm −2 at 1000 °C, which is four times higher than that of the single phase BCF8515 membrane. Hydrogen permeability of Ni-BCF8515 dual-phase membrane under different hydration conditions was studied here. Moreover, Ni-BCF8515 dual-phase membrane showed stable hydrogen permeability under the reducing atmosphere for 50 h.