CO2-enhanced hydrogen permeability of dual-layered A-site deficient Ba0.95Ce0.85Tb0.05Zr0.1O3-d-based hollow fiber membrane
© 2017 Elsevier B.V. Hydrogen (H 2 )-selective proton conducting perovskite membrane is the low cost alternative of palladium membrane. In this work, we report the preparation of an A-site deficient Zr-doped proton conductor composition of Ba 0.95 Ce 0.85 Tb 0.05 Zr 0.1 O 3-d (BCTZ) in the dual-laye...
| Main Authors: | , , , , , , |
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| Format: | Journal Article |
| Published: |
Elsevier BV
2018
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| Online Access: | http://hdl.handle.net/20.500.11937/57731 |
| _version_ | 1848760082998755328 |
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| author | Shang, Y. Wei, L. Meng, X. Meng, B. Yang, N. Sunarso, J. Liu, Shaomin |
| author_facet | Shang, Y. Wei, L. Meng, X. Meng, B. Yang, N. Sunarso, J. Liu, Shaomin |
| author_sort | Shang, Y. |
| building | Curtin Institutional Repository |
| collection | Online Access |
| description | © 2017 Elsevier B.V. Hydrogen (H 2 )-selective proton conducting perovskite membrane is the low cost alternative of palladium membrane. In this work, we report the preparation of an A-site deficient Zr-doped proton conductor composition of Ba 0.95 Ce 0.85 Tb 0.05 Zr 0.1 O 3-d (BCTZ) in the dual-layer hollow fiber configuration consisting of Ni-BCTZ inner porous layer and BCTZ outer dense layer, denoted as BCTZ/Ni-BCTZ hollow fiber via co-spinning, co-sintering, and reduction (in hydrogen) processes. The presence of Zr 4+ in BCTZ perovskite lattice leads to higher CO 2 resistance for BCTZ relative to Ba 0.95 Ce 0.95 Tb 0.05 O 3-d (BCT) as revealed by their CO 2 -temperature programmed desorption results. H 2 permeation flux of dual-layer BCTZ/Ni-BCTZ hollow fiber reaches a maximum of 0.41 mL min -1 cm -2 at 900 °C. When CO 2 was introduced in the permeate side, H 2 permeation flux was enhanced with respect to the CO 2 -absent case, which is attributed to the presence of reverse water-gas shift reaction that consumes the permeated H 2 to produce carbon monoxide and water. The dual-layer BCTZ/Ni-BCTZ hollow fiber showed stable H 2 permeation fluxes when operated at 800 °C in CO 2 -containing permeate atmosphere for 25 days. Its original morphology and structure were retained following this long term operational test; highlighting its potential use for H 2 separation in CO 2 -containing reactions and processes. |
| first_indexed | 2025-11-14T10:10:08Z |
| format | Journal Article |
| id | curtin-20.500.11937-57731 |
| institution | Curtin University Malaysia |
| institution_category | Local University |
| last_indexed | 2025-11-14T10:10:08Z |
| publishDate | 2018 |
| publisher | Elsevier BV |
| recordtype | eprints |
| repository_type | Digital Repository |
| spelling | curtin-20.500.11937-577312023-08-02T06:39:09Z CO2-enhanced hydrogen permeability of dual-layered A-site deficient Ba0.95Ce0.85Tb0.05Zr0.1O3-d-based hollow fiber membrane Shang, Y. Wei, L. Meng, X. Meng, B. Yang, N. Sunarso, J. Liu, Shaomin © 2017 Elsevier B.V. Hydrogen (H 2 )-selective proton conducting perovskite membrane is the low cost alternative of palladium membrane. In this work, we report the preparation of an A-site deficient Zr-doped proton conductor composition of Ba 0.95 Ce 0.85 Tb 0.05 Zr 0.1 O 3-d (BCTZ) in the dual-layer hollow fiber configuration consisting of Ni-BCTZ inner porous layer and BCTZ outer dense layer, denoted as BCTZ/Ni-BCTZ hollow fiber via co-spinning, co-sintering, and reduction (in hydrogen) processes. The presence of Zr 4+ in BCTZ perovskite lattice leads to higher CO 2 resistance for BCTZ relative to Ba 0.95 Ce 0.95 Tb 0.05 O 3-d (BCT) as revealed by their CO 2 -temperature programmed desorption results. H 2 permeation flux of dual-layer BCTZ/Ni-BCTZ hollow fiber reaches a maximum of 0.41 mL min -1 cm -2 at 900 °C. When CO 2 was introduced in the permeate side, H 2 permeation flux was enhanced with respect to the CO 2 -absent case, which is attributed to the presence of reverse water-gas shift reaction that consumes the permeated H 2 to produce carbon monoxide and water. The dual-layer BCTZ/Ni-BCTZ hollow fiber showed stable H 2 permeation fluxes when operated at 800 °C in CO 2 -containing permeate atmosphere for 25 days. Its original morphology and structure were retained following this long term operational test; highlighting its potential use for H 2 separation in CO 2 -containing reactions and processes. 2018 Journal Article http://hdl.handle.net/20.500.11937/57731 10.1016/j.memsci.2017.10.012 Elsevier BV restricted |
| spellingShingle | Shang, Y. Wei, L. Meng, X. Meng, B. Yang, N. Sunarso, J. Liu, Shaomin CO2-enhanced hydrogen permeability of dual-layered A-site deficient Ba0.95Ce0.85Tb0.05Zr0.1O3-d-based hollow fiber membrane |
| title | CO2-enhanced hydrogen permeability of dual-layered A-site deficient Ba0.95Ce0.85Tb0.05Zr0.1O3-d-based hollow fiber membrane |
| title_full | CO2-enhanced hydrogen permeability of dual-layered A-site deficient Ba0.95Ce0.85Tb0.05Zr0.1O3-d-based hollow fiber membrane |
| title_fullStr | CO2-enhanced hydrogen permeability of dual-layered A-site deficient Ba0.95Ce0.85Tb0.05Zr0.1O3-d-based hollow fiber membrane |
| title_full_unstemmed | CO2-enhanced hydrogen permeability of dual-layered A-site deficient Ba0.95Ce0.85Tb0.05Zr0.1O3-d-based hollow fiber membrane |
| title_short | CO2-enhanced hydrogen permeability of dual-layered A-site deficient Ba0.95Ce0.85Tb0.05Zr0.1O3-d-based hollow fiber membrane |
| title_sort | co2-enhanced hydrogen permeability of dual-layered a-site deficient ba0.95ce0.85tb0.05zr0.1o3-d-based hollow fiber membrane |
| url | http://hdl.handle.net/20.500.11937/57731 |