TY - GEN
T1 - OXYGEN PERMEATION AND METHANE CONVERSION PROPERTIES OF CERIA-BASED COMPOSITE MEMBRANES PREPARED BY TAPE-CASTING TECHNIQUE
AU - Takamura, H.
AU - Kobayashi, T.
AU - Kamegawa, Atsunori
AU - Okada, M.
N1 - Funding Information:
This work has been supported by CREST of Japan Science and Technology Corporation (JST) and Ministry of Education, Science, Sports and Culture, Grant-in-Aid for Young Scientists (B), No. 15760512.
Publisher Copyright:
Copyright © 2004 by ASME.
PY - 2004
Y1 - 2004
N2 - The preparation of ceria-based composite membranes by means of tape-casting technique and their oxygen permeation and methane reforming properties have been investigated. Oxide powders comprising of Ce1-xRExO2-δ (RE = Pr and Sm) and spinel-type ferrites of MFe2O4 (M = Mn and Co) were prepared by the citrate-based liquid-mix technique. As a result of the optimization of ceramics slurry composition, a crack-free dense membrane with dimensions of 5 cm × 5 cm and 140 μm in thickness was successfully prepared by means of doctor-blade technique. For Ce0.9Sm0.1O2-δ - 15 vol% MnFe2O4 membrane with a thickness of 133 μm, an oxygen flux density of 9.5 μmol/cm2 s was attained at 1000 °C under Ar-10%CH4 (100 sccm). The methane conversion and CO selectivity were 22 and 93 %, respectively. Laminated membranes comprising of Ce0.9Sm0.1O2-δ - 15 vol% MnFe2O4 and Ce0.9Sm0.1O2-δ - 30 vol% CoFe2O4 were also prepared. The laminated membrane with one Ce0.9Sm0.1O2-δ - 30 vol% CoFe2O4 layer showed a higher oxygen flux density by a factor of 40 % than that without Ce0.9Sm0.1O2-δ - 30 vol% CoFe2O4 layer.
AB - The preparation of ceria-based composite membranes by means of tape-casting technique and their oxygen permeation and methane reforming properties have been investigated. Oxide powders comprising of Ce1-xRExO2-δ (RE = Pr and Sm) and spinel-type ferrites of MFe2O4 (M = Mn and Co) were prepared by the citrate-based liquid-mix technique. As a result of the optimization of ceramics slurry composition, a crack-free dense membrane with dimensions of 5 cm × 5 cm and 140 μm in thickness was successfully prepared by means of doctor-blade technique. For Ce0.9Sm0.1O2-δ - 15 vol% MnFe2O4 membrane with a thickness of 133 μm, an oxygen flux density of 9.5 μmol/cm2 s was attained at 1000 °C under Ar-10%CH4 (100 sccm). The methane conversion and CO selectivity were 22 and 93 %, respectively. Laminated membranes comprising of Ce0.9Sm0.1O2-δ - 15 vol% MnFe2O4 and Ce0.9Sm0.1O2-δ - 30 vol% CoFe2O4 were also prepared. The laminated membrane with one Ce0.9Sm0.1O2-δ - 30 vol% CoFe2O4 layer showed a higher oxygen flux density by a factor of 40 % than that without Ce0.9Sm0.1O2-δ - 30 vol% CoFe2O4 layer.
UR - http://www.scopus.com/inward/record.url?scp=85148042325&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=85148042325&partnerID=8YFLogxK
U2 - 10.1115/FUELCELL2004-2473
DO - 10.1115/FUELCELL2004-2473
M3 - Conference contribution
AN - SCOPUS:85148042325
T3 - ASME 2004 2nd International Conference on Fuel Cell Science, Engineering and Technology, FUELCELL 2004
SP - 213
EP - 217
BT - ASME 2004 2nd International Conference on Fuel Cell Science, Engineering and Technology, FUELCELL 2004
PB - American Society of Mechanical Engineers (ASME)
T2 - ASME 2004 2nd International Conference on Fuel Cell Science, Engineering and Technology, FUELCELL 2004
Y2 - 14 June 2004 through 16 June 2004
ER -
