Effect of Pd coating on hydrogen permeation of Ni-barium cerate mixed conductor.
Journal Article
·
· Electrochem. Solid State Lett.
Successful development of hydrogen separation membranes based on mixed ionic and electronic conductors will improve the economy of hydrogen production. For a gas separation process, interfacial polarization plays an increasingly important role as the ceramic membrane is made thinner to reduce the bulk resistance. In this paper, we report the effect of surface modification on surface properties of a composite membrane consisting of nickel and yttrium-doped barium cerate (Ni-BCY). The application of a Pd thin film on the surface of a Ni-BCY composite membrane significantly reduces the interfacial polarization resistance at temperatures from 500 to 900 C. The composition, morphology, and microstructure of the modified membrane surface dramatically influence the catalytic properties for hydrogen separation.
- Research Organization:
- Argonne National Laboratory (ANL)
- Sponsoring Organization:
- NETL
- DOE Contract Number:
- AC02-06CH11357
- OSTI ID:
- 949321
- Report Number(s):
- ANL/ET/JA-39951
- Journal Information:
- Electrochem. Solid State Lett., Journal Name: Electrochem. Solid State Lett. Journal Issue: 3 ; Mar. 2002 Vol. 5; ISSN 1099-0062
- Country of Publication:
- United States
- Language:
- ENGLISH
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