Details
| Original language | English |
|---|---|
| Pages (from-to) | 7898-7903 |
| Number of pages | 6 |
| Journal | Chemistry - A European Journal |
| Volume | 16 |
| Issue number | 26 |
| Early online date | 5 Jul 2010 |
| Publication status | Published - 12 Jul 2010 |
Abstract
A porous perovskite BaCox,FeyZr 0.9-x-yPd0.1O3-δ (BCFZ-Pd) coating was deposited onto the outer surface of a BaCOxFeyZr 1-x-yO3-δ (BCFZ) perovskite hollow-fiber membrane. The surface morphology of the modified BCFZ fiber was characterized by scanning electron microscopy (SEM), indicating the formation of a BCFZ-Pd porous layer on the outer surface of a dense BCFZ hollow-fiber membrane. The oxygen permeation flux of the BCFZ membrane with a BCFZ-Pd porous layer increased 3.5 times more than that of the blank BCFZ membrane when feeding reactive CH4 onto the permeation side of the membrane. The blank BCFZ membrane and surface-modified BCFZ membrane were used as reactors to shift the equilibrium of thermal water dissociation for hydrogen production because they allow the selective removal of the produced oxygen from the water dissociation system. It was found that the hydrogen production rate increased from 0.7 to 2.1 mLH2min -1VCm-2 at 950°C after depositing a BCFZ-Pd porous layer onto the BCFZ membrane.
Keywords
- Heterogeneous catalysis, Hollow-fiber membranes, Oxygen separation, Perovskite phases, Water splitting
ASJC Scopus subject areas
- Chemical Engineering(all)
- Catalysis
- Chemistry(all)
- Organic Chemistry
Sustainable Development Goals
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In: Chemistry - A European Journal, Vol. 16, No. 26, 12.07.2010, p. 7898-7903.
Research output: Contribution to journal › Article › Research › peer review
}
TY - JOUR
T1 - Hydrogen production by water dissociation in surface-modified BaCo xFeyZr1-x-yO3-δ hollow-fiber membrane reactor with improved oxygen permeation
AU - Jiang, Heqing
AU - Liang, Fangyi
AU - Czuprat, Oliver
AU - Efimov, Konstantin
AU - Feldhoff, Armin
AU - Schirrmeister, Steffen
AU - Schiestel, Thomas
AU - Wang, Haihui
AU - Caro, Jürgen
PY - 2010/7/12
Y1 - 2010/7/12
N2 - A porous perovskite BaCox,FeyZr 0.9-x-yPd0.1O3-δ (BCFZ-Pd) coating was deposited onto the outer surface of a BaCOxFeyZr 1-x-yO3-δ (BCFZ) perovskite hollow-fiber membrane. The surface morphology of the modified BCFZ fiber was characterized by scanning electron microscopy (SEM), indicating the formation of a BCFZ-Pd porous layer on the outer surface of a dense BCFZ hollow-fiber membrane. The oxygen permeation flux of the BCFZ membrane with a BCFZ-Pd porous layer increased 3.5 times more than that of the blank BCFZ membrane when feeding reactive CH4 onto the permeation side of the membrane. The blank BCFZ membrane and surface-modified BCFZ membrane were used as reactors to shift the equilibrium of thermal water dissociation for hydrogen production because they allow the selective removal of the produced oxygen from the water dissociation system. It was found that the hydrogen production rate increased from 0.7 to 2.1 mLH2min -1VCm-2 at 950°C after depositing a BCFZ-Pd porous layer onto the BCFZ membrane.
AB - A porous perovskite BaCox,FeyZr 0.9-x-yPd0.1O3-δ (BCFZ-Pd) coating was deposited onto the outer surface of a BaCOxFeyZr 1-x-yO3-δ (BCFZ) perovskite hollow-fiber membrane. The surface morphology of the modified BCFZ fiber was characterized by scanning electron microscopy (SEM), indicating the formation of a BCFZ-Pd porous layer on the outer surface of a dense BCFZ hollow-fiber membrane. The oxygen permeation flux of the BCFZ membrane with a BCFZ-Pd porous layer increased 3.5 times more than that of the blank BCFZ membrane when feeding reactive CH4 onto the permeation side of the membrane. The blank BCFZ membrane and surface-modified BCFZ membrane were used as reactors to shift the equilibrium of thermal water dissociation for hydrogen production because they allow the selective removal of the produced oxygen from the water dissociation system. It was found that the hydrogen production rate increased from 0.7 to 2.1 mLH2min -1VCm-2 at 950°C after depositing a BCFZ-Pd porous layer onto the BCFZ membrane.
KW - Heterogeneous catalysis
KW - Hollow-fiber membranes
KW - Oxygen separation
KW - Perovskite phases
KW - Water splitting
UR - http://www.scopus.com/inward/record.url?scp=77954327104&partnerID=8YFLogxK
U2 - 10.1002/chem.200902494
DO - 10.1002/chem.200902494
M3 - Article
AN - SCOPUS:77954327104
VL - 16
SP - 7898
EP - 7903
JO - Chemistry - A European Journal
JF - Chemistry - A European Journal
SN - 0947-6539
IS - 26
ER -