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Factors Limiting the Apparent Hydrogen Flux in Asymmetric Tubular Cercer Membranes Based on La(27)W(3.5)Mo(1.5)O(55.5−δ) and La(0.87)Sr(0.13)CrO(3−δ)

Asymmetric tubular ceramic–ceramic (cercer) membranes based on La(27)W(3.5)Mo(1.5)O(55.5−δ)-La(0.87)Sr(0.13)CrO(3−δ) were fabricated by a two-step firing method making use of water-based extrusion and dip-coating. The performance of the membranes was characterized by measuring the hydrogen permeatio...

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Autores principales: Li, Zuoan, Polfus, Jonathan M., Xing, Wen, Denonville, Christelle, Fontaine, Marie-Laure, Bredesen, Rune
Formato: Online Artículo Texto
Lenguaje:English
Publicado: MDPI 2019
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6836226/
https://www.ncbi.nlm.nih.gov/pubmed/31554293
http://dx.doi.org/10.3390/membranes9100126
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author Li, Zuoan
Polfus, Jonathan M.
Xing, Wen
Denonville, Christelle
Fontaine, Marie-Laure
Bredesen, Rune
author_facet Li, Zuoan
Polfus, Jonathan M.
Xing, Wen
Denonville, Christelle
Fontaine, Marie-Laure
Bredesen, Rune
author_sort Li, Zuoan
collection PubMed
description Asymmetric tubular ceramic–ceramic (cercer) membranes based on La(27)W(3.5)Mo(1.5)O(55.5−δ)-La(0.87)Sr(0.13)CrO(3−δ) were fabricated by a two-step firing method making use of water-based extrusion and dip-coating. The performance of the membranes was characterized by measuring the hydrogen permeation flux and water splitting with dry and wet sweep gases, respectively. To explore the limiting factors for hydrogen and oxygen transport in the asymmetric membrane architecture, the effect of different gas flows and switching the feed and sweep sides of the membrane on the apparent hydrogen permeability was investigated. A dusty gas model was used to simulate the gas gradient inside the porous support, which was combined with Wagner diffusion calculations of the dense membrane layer to assess the overall transport across the asymmetric membrane. In addition, the stability of the membrane was investigated by means of flux measurements over a period of 400 h.
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spelling pubmed-68362262019-11-25 Factors Limiting the Apparent Hydrogen Flux in Asymmetric Tubular Cercer Membranes Based on La(27)W(3.5)Mo(1.5)O(55.5−δ) and La(0.87)Sr(0.13)CrO(3−δ) Li, Zuoan Polfus, Jonathan M. Xing, Wen Denonville, Christelle Fontaine, Marie-Laure Bredesen, Rune Membranes (Basel) Article Asymmetric tubular ceramic–ceramic (cercer) membranes based on La(27)W(3.5)Mo(1.5)O(55.5−δ)-La(0.87)Sr(0.13)CrO(3−δ) were fabricated by a two-step firing method making use of water-based extrusion and dip-coating. The performance of the membranes was characterized by measuring the hydrogen permeation flux and water splitting with dry and wet sweep gases, respectively. To explore the limiting factors for hydrogen and oxygen transport in the asymmetric membrane architecture, the effect of different gas flows and switching the feed and sweep sides of the membrane on the apparent hydrogen permeability was investigated. A dusty gas model was used to simulate the gas gradient inside the porous support, which was combined with Wagner diffusion calculations of the dense membrane layer to assess the overall transport across the asymmetric membrane. In addition, the stability of the membrane was investigated by means of flux measurements over a period of 400 h. MDPI 2019-09-24 /pmc/articles/PMC6836226/ /pubmed/31554293 http://dx.doi.org/10.3390/membranes9100126 Text en © 2019 by the authors. Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (http://creativecommons.org/licenses/by/4.0/).
spellingShingle Article
Li, Zuoan
Polfus, Jonathan M.
Xing, Wen
Denonville, Christelle
Fontaine, Marie-Laure
Bredesen, Rune
Factors Limiting the Apparent Hydrogen Flux in Asymmetric Tubular Cercer Membranes Based on La(27)W(3.5)Mo(1.5)O(55.5−δ) and La(0.87)Sr(0.13)CrO(3−δ)
title Factors Limiting the Apparent Hydrogen Flux in Asymmetric Tubular Cercer Membranes Based on La(27)W(3.5)Mo(1.5)O(55.5−δ) and La(0.87)Sr(0.13)CrO(3−δ)
title_full Factors Limiting the Apparent Hydrogen Flux in Asymmetric Tubular Cercer Membranes Based on La(27)W(3.5)Mo(1.5)O(55.5−δ) and La(0.87)Sr(0.13)CrO(3−δ)
title_fullStr Factors Limiting the Apparent Hydrogen Flux in Asymmetric Tubular Cercer Membranes Based on La(27)W(3.5)Mo(1.5)O(55.5−δ) and La(0.87)Sr(0.13)CrO(3−δ)
title_full_unstemmed Factors Limiting the Apparent Hydrogen Flux in Asymmetric Tubular Cercer Membranes Based on La(27)W(3.5)Mo(1.5)O(55.5−δ) and La(0.87)Sr(0.13)CrO(3−δ)
title_short Factors Limiting the Apparent Hydrogen Flux in Asymmetric Tubular Cercer Membranes Based on La(27)W(3.5)Mo(1.5)O(55.5−δ) and La(0.87)Sr(0.13)CrO(3−δ)
title_sort factors limiting the apparent hydrogen flux in asymmetric tubular cercer membranes based on la(27)w(3.5)mo(1.5)o(55.5−δ) and la(0.87)sr(0.13)cro(3−δ)
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6836226/
https://www.ncbi.nlm.nih.gov/pubmed/31554293
http://dx.doi.org/10.3390/membranes9100126
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