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REVIEW 2 major objections 2 minor 63 references

High-flux dual-phase percolation membrane for oxygen separation

T0 review · 2 major / 2 minor · reviewed 2026-05-25 · grok-4.3

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Pith's one-line read The 60CPO-40PCFO dual-phase composite shows the highest oxygen permeability among tested materials, reaching 1.00 mL cm-2 min-1 flux at 1000°C under air/He.

desk verdict The 60CPO-40PCFO membrane reports solid flux numbers for a Co-free, Sr-free dual-phase system, but the CO2 stability claim rests only on in situ XRD without time-dependent permeation data under flow. read the letter →

arxiv 1907.01772 v1 pith:S7FMVTYU submitted 2019-07-03 physics.app-ph cond-mat.mtrl-sci

Shu Wang , Lei Shi , Zhiang Xie , Yuan He , Dong Yan , Man-Rong Li , Juergen Caro , Huixia Luo This is my paper · ORCID
classification physics.app-phcond-mat.mtrl-sci
keywords dual-phasemembraneoxygenpermeationCO2stabilitycompositematerialperovskitefluoriteseparationCadoping
verification ladder T0 review T1 audit T2 compute T3 formal

The pith

A machine-rendered reading of the paper's core claim, the machinery that carries it, and where it could break.

The reading

The paper fabricates three weight-ratio composites of Ce0.9Pr0.1O2-δ with Pr0.6Ca0.4FeO3-δ and measures their crystal structures, oxygen permeation rates, and stability under CO2 exposure. The 60-40 composition stands out with the reported fluxes of 1.00 mL cm-2 min-1 in air/He and 0.62 mL cm-2 min-1 in air/CO2 for 0.3 mm thick membranes at 1000°C after surface coating, plus confirmed structural integrity via in situ XRD. A sympathetic reader would care because the design avoids cobalt and strontium, potentially lowering cost and improving durability for industrial oxygen separation where CO2 tolerance matters.

What carries the argument

The dual-phase percolation structure in the 60CPO-40PCFO composite, where the fluorite and perovskite phases enable simultaneous oxygen-ion and electronic transport across the membrane thickness.

What would settle it

A measurable drop in oxygen flux below the reported values or formation of new carbonate phases after several hundred hours of continuous permeation testing at 1000°C under an air/CO2 gradient would show the stability claim does not hold.

Watch

Extended reading notes

Core claim

The composition of 60wt.%Ce0.9Pr0.1O2-δ-40wt.%Pr0.6Ca0.4FeO3-δ possesses the highest oxygen permeability among three studied composites. At 1000°C, the oxygen permeation fluxes through the 0.3 mm-thickness 60CPO-40PCFO membranes after porous La0.6Sr0.4CoO3-δ reach 1.00 mL cm-2 min-1 and 0.62 mL cm-2 min-1 under air/He and air/CO2 gradients, respectively. In situ XRD results demonstrate that the 60CPO-40PCFO sample displays perfect structural stability in air as well as CO2-containing atmosphere.

Load-bearing premise

Short-term in situ XRD observations of structural stability in a static CO2-containing atmosphere are enough to predict reliable long-term performance under flowing gas and temperature-gradient conditions during actual oxygen permeation.

Editorial extensions

If this is right

  • The membrane can sustain oxygen transport under CO2 gradients without immediate structural failure.
  • Eliminating cobalt and strontium cuts material expense and reduces risk of carbonate formation.
  • The measured flux levels indicate the composite could support high-temperature industrial oxygen separation processes.
  • Surface modification with a porous coating increases the effective permeation rate in these dual-phase materials.

Reading between the lines

Editorial extensions of the paper, not claims the author makes directly.

  • If the reported stability extends to dynamic gas-flow conditions, the material could pair with carbon-capture systems that produce CO2-rich streams.
  • Adjusting the exact Pr or Ca fractions within the same two-phase system might produce still-higher fluxes without adding new elements.
  • Post-operation microscopy on membranes run for weeks rather than hours would provide a direct check on whether XRD snapshots capture all degradation paths.
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Editorial analysis

A structured set of objections, weighed in public.

Desk editor's note, referee report, simulated authors' rebuttal, and a circularity audit.

Referee Report

2 major / 2 minor

Summary. The manuscript reports synthesis of dual-phase composites (100-x)wt.% Ce0.9Pr0.1O2-δ - x wt.% Pr0.6Ca0.4FeO3-δ (x=25,40,50) for oxygen separation membranes. The 60CPO-40PCFO composition is identified as optimal, with oxygen permeation fluxes through 0.3 mm thick membranes (porous LSC coated) reaching 1.00 mL cm^{-2} min^{-1} under air/He and 0.62 mL cm^{-2} min^{-1} under air/CO2 at 1000°C. In situ XRD is presented to demonstrate structural stability in air and CO2-containing atmospheres, with the material positioned as a low-cost, Co-free, Sr-free option with high CO2 tolerance.

Significance. If the flux values and long-term stability hold, the work is significant for advancing economical dual-phase oxygen transport membranes suitable for CO2-containing environments such as oxy-fuel combustion. The reported fluxes are competitive for thin membranes, the Ca doping strategy uses abundant elements, and the explicit avoidance of Co and Sr addresses cost and carbonate-formation issues. The in situ XRD approach provides direct crystallographic evidence, which is a methodological strength.

major comments (2)
  1. [stability evaluation / in situ XRD results] The central claim of 'high CO2 stability' for practical use (abstract and stability evaluation section) rests on in situ XRD data showing no phase decomposition in CO2 atmospheres. This is insufficient to establish sustained permeation performance, as XRD cannot detect slow surface carbonate formation, grain-boundary reactions, or flux decay under gas flow and pO2 gradients present during actual air/CO2 permeation testing. No time-dependent permeation flux data under the air/CO2 gradient is reported to corroborate the single-point value of 0.62 mL cm^{-2} min^{-1}.
  2. [oxygen permeability evaluation] The statement that 60CPO-40PCFO 'possesses the highest oxygen permeability among three studied composites' (abstract and oxygen permeability section) is presented without tabulated or graphed flux values, error bars, or replicate counts for the x=25 and x=50 compositions. This prevents quantitative assessment of whether the reported superiority is statistically meaningful or within experimental uncertainty.
minor comments (2)
  1. [Abstract] Abstract contains unclear phrasing: 'after porous La0.6Sr0.4CoO3-δ each to 1.00' should be revised for clarity (likely intended as 'reach').
  2. [Abstract] The non-stoichiometry symbol appears as '{-δ}' (LaTeX artifact) in the abstract; ensure consistent rendering of δ throughout the manuscript and figures.

Simulated Author's Rebuttal

2 responses · 1 unresolved

We thank the referee for the constructive comments, which help clarify the scope of our claims. We respond point-by-point below, indicating revisions where appropriate.

read point-by-point responses

  1. Referee: [stability evaluation / in situ XRD results] The central claim of 'high CO2 stability' for practical use (abstract and stability evaluation section) rests on in situ XRD data showing no phase decomposition in CO2 atmospheres. This is insufficient to establish sustained permeation performance, as XRD cannot detect slow surface carbonate formation, grain-boundary reactions, or flux decay under gas flow and pO2 gradients present during actual air/CO2 permeation testing. No time-dependent permeation flux data under the air/CO2 gradient is reported to corroborate the single-point value of 0.62 mL cm^{-2} min^{-1}.

    Authors: We agree that in situ XRD provides crystallographic evidence of phase stability but does not address possible slow surface or grain-boundary reactions under flowing gas and pO2 gradients. The air/CO2 flux value of 0.62 mL cm^{-2} min^{-1} is a single-point measurement. No time-dependent permeation data under air/CO2 were collected. We will revise the abstract and stability section to replace 'high CO2 stability' with 'structural stability in CO2-containing atmospheres' and explicitly note the limitations of the XRD characterization. revision: yes

  2. Referee: [oxygen permeability evaluation] The statement that 60CPO-40PCFO 'possesses the highest oxygen permeability among three studied composites' (abstract and oxygen permeability section) is presented without tabulated or graphed flux values, error bars, or replicate counts for the x=25 and x=50 compositions. This prevents quantitative assessment of whether the reported superiority is statistically meaningful or within experimental uncertainty.

    Authors: Flux data for all three compositions (x=25, 40, 50) appear in Figure 5, but we accept that error bars, replicate counts, and a summary table are missing. We will add a table of oxygen permeation fluxes at selected temperatures for the three compositions, including standard deviations from replicate measurements, to allow direct quantitative comparison. revision: yes

standing simulated objections not resolved
  • No time-dependent permeation flux data under the air/CO2 gradient are available from the study.

Circularity Check

0 steps flagged · score 0.0 of 10

No circularity: purely experimental measurements with no derivations or self-referential steps

full rationale

The paper reports synthesis of composites, in situ XRD for phase stability, and direct experimental measurements of oxygen permeation fluxes (e.g., 1.00 and 0.62 mL cm^{-2} min^{-1} at 1000 °C). No equations, models, fitted parameters presented as predictions, or derivation chains exist. Central claims rest on empirical data collection rather than any reduction to inputs by construction, self-citation load-bearing, or ansatz smuggling. This matches the default case of a self-contained experimental report with no mathematical content that could create circularity.

Assumptions & free parameters 0 free parameters · 1 assumptions · 0 invented entities

This is an experimental materials report; the claims rest on standard domain assumptions for ceramic synthesis and gas permeation testing rather than new free parameters, axioms, or entities.

assumptions (1)
  • domain assumption Standard materials science assumptions regarding phase stability, ionic/electronic conductivity in dual-phase composites, and conventional gas permeation measurement techniques apply.
    The abstract invokes crystal structure, oxygen permeability, phase, and CO2 stability evaluation without indicating any non-standard methods or deviations from established practice.

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Cite this review

Pith. "Pith review of High-flux dual-phase percolation membrane for oxygen separation." pith.science (2026). https://pith.science/paper/S7FMVTYU

@misc{pith2026190701772,
  author       = {Pith},
  title        = {Pith review of: High-flux dual-phase percolation membrane for oxygen separation},
  year         = {2026},
  howpublished = {\url{https://pith.science/paper/S7FMVTYU}},
  note         = {Machine review of arXiv:1907.01772}
}
read the original abstract

A series of composites based on (100-x)wt.%Ce0.9Pr0.1O2-{\delta}-xwt.%Pr0.6Ca0.4FeO3-{\delta} (x = 25, 40 and 50) doped with the cheap and abundant alkaline earth metal Ca2+ at the A-site has been successfully designed and fabricated. The crystal structure, oxygen permeability, phase and CO2 stability were evaluated. The composition of 60wt.%Ce0.9Pr0.1O2-{\delta}-40wt.%Pr0.6Ca0.4FeO3-{\delta}(60CPO-40PCFO) possesses the highest oxygen permeability among three studied composites. At 1000 oC, the oxygen permeation fluxes through the 0.3 mm-thickness 60CPO-40PCFO membranes after porous La0.6Sr0.4CoO3-{\delta} each to 1.00 mL cm-2 min-1 and 0.62 mL cm-2 min-1 under air/He and air/CO2 gradients, respectively. In situ XRD results demonstrated that the 60CPO-40PCFO sample displayed a perfect structural stability in air as well as CO2-containing atmosphere. Thus, low-cost, Co-free and Sr-free 60CPO-40PCFO has high CO2 stability and is economical and environmental friendly since the expensive and volatile element Co was replaced by Fe and Sr was waived since it easily forms carbonates.

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Works this paper leans on

63 extracted references · 63 canonical work pages

  1. [1]

    Babakhani, J

    E.G. Babakhani, J. Towfighi, L. Shirazi, A. Nakhaeipour, A. Zamaniyan, Z. Shafiei, Structure Stability and Oxygen Permeability of Perovskite-type Oxides of 20 Ba0.5Sr0.5Co0.8Fe0.1R0.1O3−δ (R = Al, Mn, Fe, Ce, Cr, Ni, Co), J. Mater. Sci. Technol. 28 (2012) 177-183. https://doi.org/10.1016/S1005-0302(12)60039-5

    work page doi:10.1016/s1005-0302(12)60039-5 2012

  2. [2]

    Baumann, F

    S. Baumann, F. Schulze-Kü ppers, S. Roitsch, M. Betz, M. Zwick, E.M. Pfaff, W.A. Meulenberg, J. Mayer, D. Stö ver, Influence of sintering conditions on microstructure and oxygen permeation of Ba 0.5Sr0.5Co0.8Fe0.2O3−δ (BSCF) oxygen transport membranes, J. M embr. Sci. 359 (2010) 102 -109. https://doi.org/10.1016/j.memsci.2010.02.002

    work page doi:10.1016/j.memsci.2010.02.002 2010

  3. [3]

    Sengodan, S

    S. Sengodan, S. Choi, A. Jun, T.H. Shin, Y.W. Ju, H.Y. Jeong, J. Shin, J.T.S. Irvine, G. Kim, Layered oxygen -deficient double perovskite as an efficient and stable anode for direct hydrocarbon solid oxide fuel cells, Nat. Mater. 14 (2014) 205-209. https://doi.org/10.1038/nmat4166

    work page doi:10.1038/nmat4166 2014

  4. [4]

    Shao, S.M

    Z. Shao, S.M. Haile, A high-performance cathode for the next generation of solid- oxide fuel cells, J. Cheminf. 35 (2004) 170 -173. https://doi.org/10.1142/9789814317665_0036

    work page doi:10.1142/9789814317665_0036 2004

  5. [5]

    Balachandran, J.T

    U. Balachandran, J.T. Dusek, R .L. Mieville, R.B. Poeppel, M.S. Kleefisch, S. Pei, T.P. Kobylinski, C.A. Udovich, A.C. Bose, Dense ceramic membranes for partial oxidation of methane to syngas, Appl. Catal. A 133 (1995) 19 -29. https://doi.org/10.1016/0926-860X(95)00159-X

    work page doi:10.1016/0926-860x(95)00159-x 1995

  6. [6]

    Pei, M.S

    S. Pei, M.S. Kleefisch, T.P. Kobylinski, J. Faber, C.A. Udovich, V. Zhang-Mccoy, B. Dabrowski, U. Balachandran, R.L. Mieville, R.B. Poeppel, Failure mechanisms of 21 ceramic membrane reactors in partial oxidation of methane to synthesis gas, Catal. Lett. 30 (1994) 201-212. https://doi.org/10.1007/BF00813686

    work page doi:10.1007/bf00813686 1994

  7. [7]

    Kim, Y.L

    S. Kim, Y.L. Yang, A.J. Jacobson, B. Abeles, Diffusion and surface exchange coefficients in mixed ionic electronic conducting oxides from the pressure dependence of oxygen permeation, Solid State Ionics 106 (1998) 189 -195. https://doi.org/10.1016/S0167-2738(97)00492-X

    work page doi:10.1016/s0167-2738(97)00492-x 1998

  8. [8]

    Geffroy, E

    P.M. Geffroy, E. Blond, N. Richet, T. Chartier, Understanding and identifying the oxygen transport mechanisms through a mixed-conductor membrane, Chem. Eng. Sci. 162 (2017) 245-261. https://doi.org/10.1016/j.ces.2017.01.006

    work page doi:10.1016/j.ces.2017.01.006 2017

Show all 63 references
  1. [9]

    Balaguer, J

    M. Balaguer, J. Garcí aFayos, C. Solí s, J.M. Serra, Fast Oxygen Separation Through SO2- and CO2-Stable Dual-Phase Membrane Based on NiFe2O4–Ce0.8Tb0.2O2-δ, Chem. Mater. 25 (2013) 4986-4993. https://doi.org/10.1021/cm4034963

    2013 doi

  2. [10]

    Cheng, M

    S. Cheng, M. Sogaard, L. Han, W. Zhang, M. Chen, A. Kaiser, P.V. Hendriksen, A novel CO2- and SO2-tolerant dual phase composite membrane for oxygen separation, Chem. Commun. 51 (2015) 7140-7143. https://doi.org/10.1039/C5CC00001G

    2015 doi

  3. [11]

    Garcia -Fayos, M

    J. Garcia -Fayos, M. Balaguer, S. Baumann, J.M. Serra, Dual -phase membrane based on LaCo0.2Ni0.4Fe0.4O3-δ-Ce0.8Gd0.2O2-δ composition for oxygen permeation under CO2/SO2-rich gas environments, J. M embr. Sci. 548 (2018) 117 -124. https://doi.org/10.1016/j.memsci.2017.11.006. 22

    2018 doi

  4. [12]

    Schulz, R

    M. Schulz, R. Kriegel, A. Kä mpfer, Assessment of CO2 stability and oxygen flux of oxygen permeable membranes, J. M embr. Sci. 378 (2011) 10 -17. https://doi.org/10.1016/j.memsci.2011.02.037

    2011 doi

  5. [13]

    Klande, O

    T. Klande, O. Ravkina, A. Feldhoff, Effect of A-site lanthanum doping on the CO2 tolerance of SrCo 0.8Fe0.2O3-δ oxygen-transporting membranes, J. M embr. Sci. 437 (2013) 122-130. https://doi.org/10.1016/j.memsci.2013.02.051

    2013 doi

  6. [14]

    Sunarso, S

    J. Sunarso, S. Baumann, J.M. Serra, W.A. Meulenberg, S. Liu, Y.S. Lin, J.C. Diniz da Costa, Mixed ionic –electronic conducting (MIEC) ceramic -based membranes for oxygen separation, J. M embr. Sci. 320 (2008) 13 -41. https://doi.org/10.1016/j.memsci.2008.03.074

    2008 doi

  7. [15]

    Shaula, V.V

    A.L. Shaula, V.V. Kharton, F.M.B. Marques, A.V. Kovalevsky, A.P. Viskup, E.N. Naumovich, Oxygen permeability of mixed-conducting composite membranes: effects of phase interaction, J. Solid State Electroc hem. 10 (2006) 28 -40. https://doi.org/10.1007/s10008-005-0650-1

    2006 doi

  8. [16]

    Balaguer, C

    M. Balaguer, C. Solí s, J.M. Serra, Structural–Transport Properties Relationships on Ce 1-xLnxO2-δ System (Ln = Gd, La, Tb, Pr, Eu, Er, Yb, Nd) and Effect of Cobalt Addition, J. Phys. Chem. C 116 (2012) 7975-7982. https://doi.org/10.1021/jp211594d

    2012 doi

  9. [17]

    Kharton, A

    V. Kharton, A. Kovalevsky, A. Viskup, F. Figueiredo, A. Yaremchenko, E. Naumovich, F. Marques, Oxygen Permeabil ity of Ce 0.8Gd0.2O2−δ-La0.7Sr0.3MnO3−δ 23 Composite Membranes, J. Electrochem. Soc. 147 (2000) 2814 -2821. https://doi.org/10.1149/1.1393611

    2000 doi

  10. [18]

    Dehaney -Steven, D

    Z. Dehaney -Steven, D. Papargyriou, J.T.S. Irvine, Flux investigations on composite (La 0.8Sr0.2)0.95Cr0.5Fe0.5O3−δ-Sc0.198Ce0.012Zr0.789O1.90 oxygen transport membranes, Solid State Ionics 288 (2016) 338 -341. https://doi.org/10.1016/j.ssi.2016.01.017

    2016 doi

  11. [19]

    Samson, M

    A.J. Samson, M. Sø gaard, P. Vang Hendriksen, (Ce,Gd)O 2-δ-based dual phase membranes for oxygen separation, J. M embr. Sci. 470 (2014) 178 -188. https://doi.org/10.1016/j.memsci.2014.07.028

    2014 doi

  12. [20]

    Ovalle -Encinia, H

    O. Ovalle -Encinia, H. Pfeiffer, J. Ortiz -Landeros, Ce 0.85Sm0.15O2-δ- Sm0.6Sr0.4Al0.3Fe0.7O3-δ composite for the preparation of dense ceramic-carbonate membranes for CO 2 separation, J. M embr. Sci. 547 (2018) 11 -18. https://doi.org/10.1016/j.memsci.2017.10.021

    2018 doi

  13. [21]

    Zhang, J

    C. Zhang, J. Sunarso, S. Liu, Designing CO 2-resistant oxygen -selective mixed ionic-electronic conducting membranes: guidelines, recent advances, and forward directions, Chem. Soc. Rev. 46 (2017) 2941 -3005. https://doi.org/10.1039/C6CS00841K

    2017 doi

  14. [22]

    W. Fang, C. Zhang, F. Steinbach, A. Feldhoff, Stabilizing Perovskite Structure by Interdiffusional Tailoring and Its Application in Composite Mixed Oxygen -Ionic and 24 Electronic Conductors, Angew. Chem. Int. Ed. 56 (2017) 7584 -7588. https://doi.org/10.1002/ange.201702786

    2017 doi

  15. [23]

    Arnold, J

    M. Arnold, J. Martynczuk, K. Efimov, H. Wang, A. Feldhoff, Grain boundaries as barrier for oxygen transport in perovskite-type membranes, J. Membr. Sci. 316 (2008) 137-144. https://doi.org/10.1016/j.memsci.2007.10.002

    2008 doi

  16. [24]

    J. Xue, Q. Zheng, Y. Wei, K. Yuan, Z. Li, H. Wang, Dual Phase Composite Oxide of Ce0.9Gd0.1O2-δ-Ba0.5Sr0.5Co0.8Fe0.2O3-δ with Excellent Oxygen Permeation, Ind. Eng. Chem. Res. 51 (2012) 4703-4709. https://doi.org/10.1021/ie300083r

    2012 doi

  17. [25]

    Wang, W.P

    Z.T. Wang, W.P. Sun, Z.W. Zhu, T. Liu, W. Liu, A Novel Cobalt-Free, CO2-Stable, and Reduction-Tolerant Dual -Phase Oxygen -Permeable Membrane, Acs ACS Appl. Mater. Interfaces 5 (2013) 11038-11043. https://doi.org/10.1021/am403272z

    2013 doi

  18. [26]

    Joo, K.S

    J.H. Joo, K.S. Yun, C.-Y. Yoo, J.H. Yu, Novel oxygen transport membranes with tunable segmented structures, J. Mater. Chem. A 2 (2014) 8174 -8178. https://doi.org/10.1039/C4TA01271B

    2014 doi

  19. [27]

    Chen, C.-S

    W. Chen, C.-S. Chen, L. Winnubst, Ta-doped SrCo0.8Fe0.2O3-δ membranes: Phase stability and oxygen permeation in CO2 atmosphere, Solid State Ionics 196 (2011) 30-

    2011

  20. [28]

    https://doi.org/10.1016/j.ssi.2011.06.011. 25

    2011 doi

  21. [29]

    W. Fang, F. Steinbach, C. Chen, A. Feldhoff, An Approach To Enhance the CO 2 Tolerance of Fluorite–Perovskite Dual-Phase Oxygen-Transporting Membrane, Chem. Mater. 27 (2015) 7820-7826. https://doi.org/10.1021/acs.chemmater.5b03823

    2015 doi

  22. [30]

    Efimov, T

    K. Efimov, T. Klande, N. Juditzki, A. Feldhoff, Ca -containing CO 2-tolerant perovskite materials for oxygen separation, J. M embr. Sci. 389 (2012) 205 -215. https://doi.org/10.1016/j.memsci.2011.10.030

    2012 doi

  23. [31]

    H. Li, Y. Liu, X. Zhu, Y. Cong, S. Xu, W. Xu, W. Yang, Oxygen permeation through Ca -contained dual -phase membranes for oxyfuel CO 2 capture, Sep. Purif. Technol. 114 (2013) 31-37. https://doi.org/10.1016/j.seppur.2013.04.021

    2013 doi

  24. [32]

    H. Li, X. Zhu, Y. Liu, W. Wang, W. Yang, Comparative investigation of dual - phase membranes containing cobalt and iron -based mixed conducting perovskite for oxygen permeation, J. M embr. Sci. 462 (2014) 170 -177. https://doi.org/10.1016/j.memsci.2014.03.047

    2014 doi

  25. [33]

    Gallagher, D

    P. Gallagher, D. Johnson Jr, Kinetics of the thermal decomposition of CaCO 3 in CO2 and some observations on the kinetic compensation effect, Thermochim. Acta 14 (1976) 255-261. https://doi.org/10.1016/0040-6031(76)85002-2

    1976 doi

  26. [34]

    Wilkinson, Geoffrey, Comprehensive organometallic chemistry, Pergamon Press, 1982. 26

    1982

  27. [35]

    Sauni, P

    R. Sauni, P. Oksa, J. Uitti, A. Linna, R. Kerttula, E. Pukkala, Cancer incidence among Finnish male cobalt production workers in 1969 -2013: a cohort study, Bmc Cancer, 17 (2017) 340. https://doi.org/10.1186/s12885-017-3333-2

    1969 doi

  28. [36]

    Partovi, B

    K. Partovi, B. Geppert, F. Liang, C.H. Rü scher, J. Caro, Effect of the B -Site Composition on the Oxygen Permeability and the CO 2 Stability of Pr 0.6Sr0.4CoxFe1– xO3−δ (0.0 ≤ x ≤ 1.0) Membranes, Chem. Mater. 27 (2015) 2911 -2919. https://doi.org/10.1021/acs.chemmater.5b00166

    2015 doi

  29. [37]

    Mueller, R.A

    D.N. Mueller, R.A. De Souza, J. Brendt, D. Samuelis, M. Martin, Oxidation states of the transition metal cations in the highly nonstoichiometric perovskite-type oxide Ba0.1Sr0.9Co0.8Fe0.2O3-δ, J. Mater. Chem. 19 (2009) 1960 -1963. https://doi.org/10.1039/B819415G

    2009 doi

  30. [38]

    Gellings, H.J.M

    P.J. Gellings, H.J.M. Bouwmeester, The CRC Handbook Of Solid State Electrochemistry, 1997

    1997

  31. [39]

    Kharton, A

    V. Kharton, A. Kovalevsky, A. Viskup, A. Shaula, F. Figueiredo, E. Naumovich, F. Marques, Oxygen transport in Ce 0.8Gd0.2O2-δ-based composite membranes, Solid State Ionics 160 (2003) 247-258. https://doi.org/10.1016/S0167-2738(03)00183-8

    2003 doi

  32. [40]

    H. Luo, H. Jiang, T. Klande, Z. Cao, F. Lia ng, H. Wang, J. Caro, Novel Cobalt - Free, Noble Metal -Free Oxygen -Permeable 40Pr 0.6Sr0.4FeO3-δ-60Ce0.9Pr0.1O2−δ Dual- Phase Membrane, Chem. Mater. 24 (2012) 2148 -2154. https://doi.org/10.1021/cm300710p. 27

    2012 doi

  33. [41]

    Cheng, L

    H. Cheng, L. Luo, W. Yao, X. Lu, X. Zou, Z. Zhou, Novel cobalt-free CO2-tolerant dual-phase membranes of Ce0.8Sm0.2O2-δ-Ba0.95La0.05Fe1−xZrxO3-δ for oxygen separation, J. Membr. Sci. 492 (2015) 220-229. https://doi.org/10.1016/j.memsci.2015.05.057

    2015 doi

  34. [42]

    T. Chen, H. Zhao, Z. Xie, J. Wang, Y. Lu, N. Xu, Ce 0.8Sm0.2O2-δ-PrBaCo2O5+δ dual-phase membrane: Novel preparation and improved oxygen permeability, J. Power Sources 223 (2013) 289-292. https://doi.org/10.1016/j.jpowsour.2012.09.018

    2013 doi

  35. [43]

    Rodrí guez-Carvajal, Recent developments of the program FULLPROF, Commission on powder diffraction (IUCr)

    J. Rodrí guez-Carvajal, Recent developments of the program FULLPROF, Commission on powder diffraction (IUCr). Newsletter 26 (2001) 12-19

    2001

  36. [44]

    Momma, F

    K. Momma, F. Izumi, VESTA : a three -dimensional visualization system for electronic and structural analysis, J. Appl. Crystallogr 41 (2008) 653 -658. https://doi.org/10.1107/S0021889808012016

    2008 doi

  37. [45]

    A. Leo, J. Motuzas, C. Yacou, S. Liu, J.M. Serra, L. Navarrete, J. Drennan, A. Julbe, J.C. Diniz da Costa, Copper oxide -perovskite mixed matrix membranes delivering very high oxygen fluxes, J. M embr. Sci. 526 (2017) 323 -333. https://doi.org/10.1016/j.memsci.2016.12.035

    2017 doi

  38. [46]

    K. Li, H. Zhao, Y. Lu, Y. Ma, Z. Du, Z. Zhang, High CO 2 tolerance oxygen permeation membranes BaFe 0.95-xCa0.05TixO3-δ, J. M embr. Sci. 550 (2018) 302 -312. https://doi.org/10.1016/j.memsci.2018.01.007. 28

    2018 doi

  39. [47]

    Y. Lu, H. Zhao, X. Chang, X. Du, K. Li, Y. Ma, S. Yi, Z. Du, K. Zheng, K. Świerczek, Novel cobalt -free BaFe 1-xGdxO3-δ perovskite membranes for oxygen separation, J. Mater. Chem. A 4 (2016) 10454 -10466. https://doi.org/10.1039/C6TA01749E

    2016 doi

  40. [48]

    Garc ı́a-Gonzá lez, M

    E. Garc ı́a-Gonzá lez, M. Parras, J. Gonzá lez-Calbet, M. Vallet -Regı́, A HREM Study on La1/3Sr2/3FeO3-y II.(0.15 ≤ y ≤ 0.33), J. Solid State Chem. 125 (1996) 125-132. https://doi.org/10.1006/jssc.1996.0274

    1996 doi

  41. [49]

    Stevenson, T.R

    J.W. Stevenson, T.R. Armstrong, R.D. Carneim, L.R. Pederson, W.J. Weber, Electrochemical Properties of Mixed Conducting Perovskites La 1−xMxCo1−yFeyO3−δ(M = Sr, Ba, Ca), J. Electrochem. Soc. 143 (1996) 2722 -2729. https://doi.org/10.1149/1.1837098

    1996 doi

  42. [50]

    Cheng, Y

    S. Cheng, Y. Wang, L. Zhuang, J. Xue, Y. Wei, A. Feldhoff, J. Caro, H. Wang, A Dual-Phase Ceramic Membrane with Extremely High H2 Permeation Flux Prepared by Autoseparation of a Ceramic Precursor, Angew. Chem. Int. Ed. 55 (2016) 10895-10898. https://doi.org/10.1002/anie.201604035

    2016 doi

  43. [51]

    X. Zhu, H. Wang, W. Yang, Novel cobalt -free oxygen permeable membrane, Chem. Commun. 0 (2004) 1130-1131. https://doi.org/10.1039/B400857J

    2004 doi

  44. [52]

    X. Zhu, Y. Cong, W. Yang, Effects of synthesis methods on oxygen permeability of BaCe 0.15Fe0.85O3−δ ceramic membranes, J. M embr. Sci. 283 (2006) 158-163. https://doi.org/10.1016/j.memsci.2006.06.020. 29

    2006 doi

  45. [53]

    C.S. Chen, H. Kruidhof, H.J.M. Bouwmeester, H. Verweij, A.J. Burggraaf, Thickness dependence of oxygen permeation through erbiastabilized bismuth oxide - silver composites, Solid State Ionics 99 (1997) 215-219. https://doi.org/10.1016/S0167- 2738(97)00271-3

    1997 doi

  46. [54]

    Ramasamy, S

    M. Ramasamy, S. Baumann, J. Palisaitis, F. Schulze ‐Kü ppers, M. Balaguer, D. Kim, W.A. Meulenberg, J. Mayer, R. Bhave, O. Guillon, Influence of Microstructure and Surface Activation of Dual‐Phase Membrane Ce0.8Gd0.2O2-δ-FeCo2O4 on Oxygen Permeation, J. Am. Ceram. Soc. 99 (201...

    2016 doi

  47. [55]

    Watanabe, M

    K. Watanabe, M. Yuasa, T. Kida, K. Shimanoe, Y. Teraoka, N. Yamazoe, Dense/Porous Asymmetric -Structured Oxygen Permeable Membranes Based on La0.6Ca0.4CoO3 Perovskite-Type Oxide, Chem. Mater. 20 (2008) 6965 -6973. https://doi.org/10.1021/cm8013144

    2008 doi

  48. [56]

    Y. He, L. Shi, F. Wu, W. Xie, S. Wang, D. Yan, P. Liu, M.-R. Li, J. Caro, H. Luo, A novel dual phase membrane 40wt%Nd0.6Sr0.4CoO3-δ-60wt%Ce0.9Nd0.1O2-δ: design, synthesis and properties, J. Mater. Chem. A 6 (2018) 84 -92. https://doi.org/10.1039/C7TA07842K

    2018 doi

  49. [57]

    X. Zhu, H. Liu, Y. Cong, W. Yang, Novel dual-phase membranes for CO2 capture via an oxyfuel route, Chem . Commun. 48 (2012) 251 -253. https://doi.org/10.1039/C1CC16631J. 30

    2012 doi

  50. [58]

    Arnold, H

    M. Arnold, H. Wang, A. Feldhoff, Influence of CO 2 on the oxygen permeation performance and the microstructure of perovskite -type (Ba 0.5Sr0.5)(Co0.8Fe0.2)O3-δ membranes, J. Mater. Sci. 293 (2007) 44 -52. https://doi.org/10.1016/j.memsci.2007.01.032

    2007 doi

  51. [59]

    J. Song Z. Qiu, J. Gao, X. Tan, J. Sunarso, S. Wang, S. Liu, CO2 erosion of BaCo0.85Bi0.05Zr0.1O3-δ perovskite membranes under oxygen permeating conditions , Sep. Purif. Technol. 207 (2018) 133-141. https://doi.org/10.1016/j.seppur.2018.06.033

    2018 doi

  52. [60]

    J.X. Yi, T.E. Weirich, M. Schroeder, CO2 corrosion and recovery of perovskite - type BaCo 1-x-yFexNbyO3-δ membranes, J. M embr. Sci. 437 (2013) 49-56. https://doi.org/10.1016/j.memsci.2013.02.049

    2013 doi

  53. [61]

    X.Y. Tan, N. Liu, B. Meng, J. Sunarso, K. Zhang, S.M. Liu, Oxygen permeation behavior of La 0.6Sr0.4Co0.8Fe0.2O3 hollow fibre membranes with highly concentrated CO2 exposure, J. M embr. Sci. 389 (2012) 216-222. https://doi.org/10.1016/j.memsci.2011.10.032

    2012 doi

  54. [62]

    H. Luo, H. Jiang, K. Efimov, F. Liang, H. Wang, J. Caro, CO 2-Tolerant Oxygen- Permeable Fe 2O3-Ce0.9Gd0.1O2-δ Dual Phase Membranes, Ind. Eng. Chem., Res. 50 (2011) 13508-13517. https://doi.org/10.1021/ie200517t

    2011 doi

  55. [63]

    H. Luo, H. Jiang, K. Efimov, J. Caro, H. Wang, Influence of the preparation methods on the microstructure and oxygen permeability of a CO 2-stable dual phase membrane, AIChE J. 57 (2011) 2738-2745. https://doi.org/10.1002/aic.12488. 31 Supporting information High-flux dual-pha...

    2011 doi

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