A thermodynamically stable La2NiO4+delta/Gd0.1Ce0.9O1.95 bilayer oxygen transport membrane in membrane-assisted water splitting for hydrogen production
- Authors
- Jeon, Sang-Yun; Im, Ha-Ni; Singh, Bhupendra; Hwang, Jin-Ha; Song, Sun-Ju
- Issue Date
- May-2013
- Publisher
- ELSEVIER SCI LTD
- Keywords
- La2NiO4+delta/ Gd0.1Ce0.9O1.95 bilayer; Water-splitting; Hydrogen production; Membrane-assisted water splitting for hydrogen production
- Citation
- CERAMICS INTERNATIONAL, v.39, no.4, pp.3893 - 3899
- Journal Title
- CERAMICS INTERNATIONAL
- Volume
- 39
- Number
- 4
- Start Page
- 3893
- End Page
- 3899
- URI
- https://scholarworks.bwise.kr/hongik/handle/2020.sw.hongik/17134
- DOI
- 10.1016/j.ceramint.2012.10.233
- ISSN
- 0272-8842
- Abstract
- A bilayer configuration of mixed ion-electron conducting La2NiO4+delta and oxygen-ion conducting Gd0.1Ce0.9O1.95 (LNO/GDC10) was proposed for hydrogen production by water-splitting and its properties were measured as a function of temperature, reducing gas CO content and water vapor pressure during the hydrogen production by water-splitting. The hydrogen production flux increased with increasing water vapor pressure and oxygen chemical potential to a maximum of 0.12 cm(3) (STP)/min-cm(2) with 23.25% CO/76.75% CO2 (40 sccm)/balance He (60 sccm) gas mixture on the oxygen-permeate side and wet N-2 (pH(2)O = 0.49 atm) on the oxidizing side at 900 degrees C. The stability of the bilayer membrane was tested in a very low oxygen partial pressure (pO(2)) on the oxygen-permeate side. The presence of GDC10 on the oxygen-permeate side of the bilayer prevented the direct exposure of LNO to very low pO(2) and thus protected it from decomposition, even at pO(2) approximate to 10(-15) atm. (C) 2012 Elsevier Ltd and Techna Group S.r.l. All rights reserved.
- Files in This Item
- There are no files associated with this item.
- Appears in
Collections - College of Engineering > Materials Science and Engineering Major > 1. Journal Articles
![qrcode](https://api.qrserver.com/v1/create-qr-code/?size=55x55&data=https://scholarworks.bwise.kr/hongik/handle/2020.sw.hongik/17134)
Items in ScholarWorks are protected by copyright, with all rights reserved, unless otherwise indicated.