Effect of A/B-site substitution on oxygen production performance of strontium cobalt based perovskites for CO2 capture application
(2015) In RSC Advances 5(50). p.39785-39790- Abstract
- Oxy-fuel combustion is one of the proposed technologies which have the potential to achieve zero CO2 emission. Strontium cobalt based perovskite oxygen carriers are promising materials for air separation with a high selectively for oxygen. And these perovskites can produce an oxygen enriched carbon dioxide stream for an oxy-fuel combustion process. The relatively low oxygen production yield may be a drawback of this type of material for this technology. This paper presents an effective approach by A/B-site substitution to improve the oxygen production performance of the perovskites. In this study, a series of different A/B-site substituted SrCo0.8Fe0.2O3-delta were prepared by an EDTA-citrate sol-gel combustion synthesis method. Fixed-bed... (More)
- Oxy-fuel combustion is one of the proposed technologies which have the potential to achieve zero CO2 emission. Strontium cobalt based perovskite oxygen carriers are promising materials for air separation with a high selectively for oxygen. And these perovskites can produce an oxygen enriched carbon dioxide stream for an oxy-fuel combustion process. The relatively low oxygen production yield may be a drawback of this type of material for this technology. This paper presents an effective approach by A/B-site substitution to improve the oxygen production performance of the perovskites. In this study, a series of different A/B-site substituted SrCo0.8Fe0.2O3-delta were prepared by an EDTA-citrate sol-gel combustion synthesis method. Fixed-bed experiments and TGA measurements were performed to study the effects of A/B-site substitution on cyclic oxygen adsorption/desorption performance of the synthesized samples. The experimental results indicate that the oxygen desorption amounts of different A-site substituted perovskites decrease in the order of BaCo0.8Fe0.2O3-delta > Ba0.5Sr0.5Co0.8Fe0.2O3-delta > SrCo0.8Fe0.2O3-delta > Sr0.5Ca0.5Co0.8Fe0.2O3-delta > MgCo0.8Fe0.2O3-delta. Moreover, B-site substitution by different transition metal ions can significantly modify oxygen adsorption capacity and oxygen desorption performance of SrCo0.8Fe0.2O3-delta. Furthermore, oxygen desorption performance can be improved when Fe ions of the perovskite SrCo0.8Fe0.2O3-delta are substituted by Zr, Cr, Zn, and Ni ions. (Less)
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https://lup.lub.lu.se/record/7422580
- author
- Shen, Qiuwan LU ; Zheng, Ying ; Luo, Cong ; Ding, Ning ; Zheng, Chu-Guang and Thern, Marcus LU
- organization
- publishing date
- 2015
- type
- Contribution to journal
- publication status
- published
- subject
- in
- RSC Advances
- volume
- 5
- issue
- 50
- pages
- 39785 - 39790
- publisher
- Royal Society of Chemistry
- external identifiers
-
- wos:000354211100018
- scopus:84928944851
- ISSN
- 2046-2069
- DOI
- 10.1039/c5ra04891e
- language
- English
- LU publication?
- yes
- id
- 8edaf0cb-2ee1-4211-8145-0218bd978513 (old id 7422580)
- date added to LUP
- 2016-04-01 13:51:06
- date last changed
- 2022-02-26 23:31:52
@article{8edaf0cb-2ee1-4211-8145-0218bd978513,
abstract = {{Oxy-fuel combustion is one of the proposed technologies which have the potential to achieve zero CO2 emission. Strontium cobalt based perovskite oxygen carriers are promising materials for air separation with a high selectively for oxygen. And these perovskites can produce an oxygen enriched carbon dioxide stream for an oxy-fuel combustion process. The relatively low oxygen production yield may be a drawback of this type of material for this technology. This paper presents an effective approach by A/B-site substitution to improve the oxygen production performance of the perovskites. In this study, a series of different A/B-site substituted SrCo0.8Fe0.2O3-delta were prepared by an EDTA-citrate sol-gel combustion synthesis method. Fixed-bed experiments and TGA measurements were performed to study the effects of A/B-site substitution on cyclic oxygen adsorption/desorption performance of the synthesized samples. The experimental results indicate that the oxygen desorption amounts of different A-site substituted perovskites decrease in the order of BaCo0.8Fe0.2O3-delta > Ba0.5Sr0.5Co0.8Fe0.2O3-delta > SrCo0.8Fe0.2O3-delta > Sr0.5Ca0.5Co0.8Fe0.2O3-delta > MgCo0.8Fe0.2O3-delta. Moreover, B-site substitution by different transition metal ions can significantly modify oxygen adsorption capacity and oxygen desorption performance of SrCo0.8Fe0.2O3-delta. Furthermore, oxygen desorption performance can be improved when Fe ions of the perovskite SrCo0.8Fe0.2O3-delta are substituted by Zr, Cr, Zn, and Ni ions.}},
author = {{Shen, Qiuwan and Zheng, Ying and Luo, Cong and Ding, Ning and Zheng, Chu-Guang and Thern, Marcus}},
issn = {{2046-2069}},
language = {{eng}},
number = {{50}},
pages = {{39785--39790}},
publisher = {{Royal Society of Chemistry}},
series = {{RSC Advances}},
title = {{Effect of A/B-site substitution on oxygen production performance of strontium cobalt based perovskites for CO2 capture application}},
url = {{http://dx.doi.org/10.1039/c5ra04891e}},
doi = {{10.1039/c5ra04891e}},
volume = {{5}},
year = {{2015}},
}