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Synthesis and experimental study of novel double perovskite Ba2NixCo2−xO6 as promising oxygen carrier materials for CO2 capture application

Shen, Qiuwan LU ; Jiang, Yuhang ; Li, Shian LU ; Lv, Xinrong ; Yang, Guogang LU and Sunden, Bengt LU (2020) In International Journal of Energy Research 44(8). p.6991-6999
Abstract

Novel oxygen-deficient double-perovskite type oxide Ba2NixCo2−xO6 was applied to produce O2/CO2 mixed stream gas for oxyfuel combustion application. A series of different Co concentration substituted Ba2NixCo2−xO6 was synthesized by an EDTA-citrate sol-gel combustion method. The oxygen carriers, Ba2Ni0.25Co1.75O6, Ba2Ni0.45Co1.55O6, Ba2Ni0.65Co1.35O6 and Ba2Ni0.85Co1.15O6 were c\characterized by scanning electron microscopy and cyclic oxygen... (More)

Novel oxygen-deficient double-perovskite type oxide Ba2NixCo2−xO6 was applied to produce O2/CO2 mixed stream gas for oxyfuel combustion application. A series of different Co concentration substituted Ba2NixCo2−xO6 was synthesized by an EDTA-citrate sol-gel combustion method. The oxygen carriers, Ba2Ni0.25Co1.75O6, Ba2Ni0.45Co1.55O6, Ba2Ni0.65Co1.35O6 and Ba2Ni0.85Co1.15O6 were c\characterized by scanning electron microscopy and cyclic oxygen adsorption/desorption experiments. The results showed that the capacity of provided O2 was improved by the partial substitution of Ni by Co. In addition, the synthesized perovskites exhibit good regeneration ability. The optimal degree of Co substitution was x = 0.25 for Ba2NixCo2−xO6 with consideration of oxygen desorption ability. Therefore, Ba2Ni0.25Co1.75O6 was selected to examine the influence of the operating parameters on the oxygen release performance. It was found that the desorption temperature and CO2 partial pressure are the two main operating parameters for the oxygen desorption performance. Further, the proposed novel double perovskite Ba2Ni0.25Co1.75O6 provided excellent performance, the O2 production of Ba2Ni0.25Co1.75O6 can still reach 120 mg/g after 10 cycles.

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organization
publishing date
type
Contribution to journal
publication status
published
subject
keywords
BaNiCoO, double-perovskite, operating parameters, oxyfuel, oxygen production
in
International Journal of Energy Research
volume
44
issue
8
pages
9 pages
publisher
John Wiley & Sons Inc.
external identifiers
  • scopus:85083494434
ISSN
0363-907X
DOI
10.1002/er.5472
language
English
LU publication?
yes
id
9a975e2a-1ab4-48a1-8707-caec1ef6c8f5
date added to LUP
2020-05-07 15:42:13
date last changed
2023-11-05 15:55:47
@article{9a975e2a-1ab4-48a1-8707-caec1ef6c8f5,
  abstract     = {{<p>Novel oxygen-deficient double-perovskite type oxide Ba<sub>2</sub>Ni<sub>x</sub>Co<sub>2−x</sub>O<sub>6</sub> was applied to produce O<sub>2</sub>/CO<sub>2</sub> mixed stream gas for oxyfuel combustion application. A series of different Co concentration substituted Ba<sub>2</sub>Ni<sub>x</sub>Co<sub>2−x</sub>O<sub>6</sub> was synthesized by an EDTA-citrate sol-gel combustion method. The oxygen carriers, Ba<sub>2</sub>Ni<sub>0.25</sub>Co<sub>1.75</sub>O<sub>6,</sub> Ba<sub>2</sub>Ni<sub>0.45</sub>Co<sub>1.55</sub>O<sub>6</sub>, Ba<sub>2</sub>Ni<sub>0.65</sub>Co<sub>1.35</sub>O<sub>6</sub> and Ba<sub>2</sub>Ni<sub>0.85</sub>Co<sub>1.15</sub>O<sub>6</sub> were c\characterized by scanning electron microscopy and cyclic oxygen adsorption/desorption experiments. The results showed that the capacity of provided O<sub>2</sub> was improved by the partial substitution of Ni by Co. In addition, the synthesized perovskites exhibit good regeneration ability. The optimal degree of Co substitution was x = 0.25 for Ba<sub>2</sub>Ni<sub>x</sub>Co<sub>2−x</sub>O<sub>6</sub> with consideration of oxygen desorption ability. Therefore, Ba<sub>2</sub>Ni<sub>0.25</sub>Co<sub>1.75</sub>O<sub>6</sub> was selected to examine the influence of the operating parameters on the oxygen release performance. It was found that the desorption temperature and CO<sub>2</sub> partial pressure are the two main operating parameters for the oxygen desorption performance. Further, the proposed novel double perovskite Ba<sub>2</sub>Ni<sub>0.25</sub>Co<sub>1.75</sub>O<sub>6</sub> provided excellent performance, the O<sub>2</sub> production of Ba<sub>2</sub>Ni<sub>0.25</sub>Co<sub>1.75</sub>O<sub>6</sub> can still reach 120 mg/g after 10 cycles.</p>}},
  author       = {{Shen, Qiuwan and Jiang, Yuhang and Li, Shian and Lv, Xinrong and Yang, Guogang and Sunden, Bengt}},
  issn         = {{0363-907X}},
  keywords     = {{BaNiCoO; double-perovskite; operating parameters; oxyfuel; oxygen production}},
  language     = {{eng}},
  month        = {{06}},
  number       = {{8}},
  pages        = {{6991--6999}},
  publisher    = {{John Wiley & Sons Inc.}},
  series       = {{International Journal of Energy Research}},
  title        = {{Synthesis and experimental study of novel double perovskite Ba<sub>2</sub>Ni<sub>x</sub>Co<sub>2−x</sub>O<sub>6</sub> as promising oxygen carrier materials for CO<sub>2</sub> capture application}},
  url          = {{http://dx.doi.org/10.1002/er.5472}},
  doi          = {{10.1002/er.5472}},
  volume       = {{44}},
  year         = {{2020}},
}