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Fabrication of Thin‐Film SrCe 0.9 Eu 0.1 O 3−δ Hydrogen Separation Membranes on Ni–SrCeO 3 Porous Tubular Supports
Author(s) -
Yoon Heesung,
Song SunJu,
Oh Takkeun,
Li Jianlin,
Duncan Keith L.,
Wachsman Eric D.
Publication year - 2009
Publication title -
journal of the american ceramic society
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.9
H-Index - 196
eISSN - 1551-2916
pISSN - 0002-7820
DOI - 10.1111/j.1551-2916.2009.03103.x
Subject(s) - membrane , hydrogen , materials science , non blocking i/o , tape casting , sintering , fabrication , porosity , chemical engineering , analytical chemistry (journal) , metallurgy , composite material , chemistry , chromatography , catalysis , medicine , biochemistry , alternative medicine , organic chemistry , pathology , engineering
SrCe 0.9 Eu 0.1 O 3−δ thin‐film (∼30 μm) tubular hydrogen separation membranes were developed in order to obtain high hydrogen fluxes. Fifteen centimeters long, one end closed, NiO–SrCeO 3 tubular supports were fabricated by tape casting, followed by rolling the green tape on a circular rod. SrCe 0.9 Eu 0.1 O 3−δ powders were prepared by the citrate process and coated on partially sintered NiO–SrCeO 3 tubular supports. Leakage‐free hydrogen membrane cells were obtained by adjusting the presintering and final sintering temperatures to reduce the difference of linear shrinkage rates between SrCe 0.9 Eu 0.1 O 3−δ thin films and NiO–SrCeO 3 supports. A hydrogen flux of 2.2 cm 3 /min was obtained for the SrCe 0.9 Eu 0.1 O 3−δ on Ni–SrCeO 3 tubular hydrogen separation membranes at 900°C using 25% H 2 balanced with Ar and 3% H 2 O as the feed gas and He as the sweep gas. Thus, a 40% single pass yield of pure H 2 was achieved with this membrane.