Details
| Original language | English |
|---|---|
| Pages (from-to) | 19107-19114 |
| Number of pages | 8 |
| Journal | Journal of Materials Chemistry A |
| Volume | 3 |
| Issue number | 37 |
| Publication status | Published - 10 Aug 2015 |
Abstract
A-site deficient (Pr0.9La0.1)1.9Ni0.74Cu0.21Ga0.05O4+δ ((PL)1.9NCG), with the K2NiF4 structure, is found to exhibit higher oxygen transport rates compared with its cation-stoichiometric parent phase. A stable oxygen permeation flux of 4.6 × 10-7 mol cm-2 s-1 at 900 °C at a membrane thickness of 0.6 mm is measured, using either helium or pure CO2 as sweep gas at a flow rate of 30 mL min-1. The oxygen flux is more than two times higher than that observed through A-site stoichiometric (PL)2.0NCG membranes operated under similar conditions. The high oxygen transport rates found for (PL)1.9NCG are attributed to highly mobile oxygen vacancies, compensating A-site deficiency. The high stability against carbonation gives (PL)1.9NCG potential for use, e.g., as a membrane in oxy-fuel combustion processes with CO2 capture.
ASJC Scopus subject areas
- Chemistry(all)
- General Chemistry
- Energy(all)
- Renewable Energy, Sustainability and the Environment
- Materials Science(all)
- General Materials Science
Sustainable Development Goals
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In: Journal of Materials Chemistry A, Vol. 3, No. 37, 10.08.2015, p. 19107-19114.
Research output: Contribution to journal › Article › Research › peer review
}
TY - JOUR
T1 - A new CO2-resistant Ruddlesden-Popper oxide with superior oxygen transport
T2 - A-site deficient (Pr0.9La0.1)1.9(Ni0.74Cu0.21Ga0.05)O4+δ
AU - Xue, Jian
AU - Liao, Qing
AU - Chen, Wei
AU - Bouwmeester, Henny J.M.
AU - Wang, Haihui
AU - Feldhoff, Armin
N1 - Publisher Copyright: © The Royal Society of Chemistry.
PY - 2015/8/10
Y1 - 2015/8/10
N2 - A-site deficient (Pr0.9La0.1)1.9Ni0.74Cu0.21Ga0.05O4+δ ((PL)1.9NCG), with the K2NiF4 structure, is found to exhibit higher oxygen transport rates compared with its cation-stoichiometric parent phase. A stable oxygen permeation flux of 4.6 × 10-7 mol cm-2 s-1 at 900 °C at a membrane thickness of 0.6 mm is measured, using either helium or pure CO2 as sweep gas at a flow rate of 30 mL min-1. The oxygen flux is more than two times higher than that observed through A-site stoichiometric (PL)2.0NCG membranes operated under similar conditions. The high oxygen transport rates found for (PL)1.9NCG are attributed to highly mobile oxygen vacancies, compensating A-site deficiency. The high stability against carbonation gives (PL)1.9NCG potential for use, e.g., as a membrane in oxy-fuel combustion processes with CO2 capture.
AB - A-site deficient (Pr0.9La0.1)1.9Ni0.74Cu0.21Ga0.05O4+δ ((PL)1.9NCG), with the K2NiF4 structure, is found to exhibit higher oxygen transport rates compared with its cation-stoichiometric parent phase. A stable oxygen permeation flux of 4.6 × 10-7 mol cm-2 s-1 at 900 °C at a membrane thickness of 0.6 mm is measured, using either helium or pure CO2 as sweep gas at a flow rate of 30 mL min-1. The oxygen flux is more than two times higher than that observed through A-site stoichiometric (PL)2.0NCG membranes operated under similar conditions. The high oxygen transport rates found for (PL)1.9NCG are attributed to highly mobile oxygen vacancies, compensating A-site deficiency. The high stability against carbonation gives (PL)1.9NCG potential for use, e.g., as a membrane in oxy-fuel combustion processes with CO2 capture.
UR - http://www.scopus.com/inward/record.url?scp=84941770357&partnerID=8YFLogxK
U2 - 10.1039/c5ta02514a
DO - 10.1039/c5ta02514a
M3 - Article
AN - SCOPUS:84941770357
VL - 3
SP - 19107
EP - 19114
JO - Journal of Materials Chemistry A
JF - Journal of Materials Chemistry A
SN - 2050-7488
IS - 37
ER -