Enhanced CO2 Resistance for Robust Oxygen Separation Through Tantalum-doped Perovskite Membranes.

Zhang, C; Tian, H; Yang, D; Sunarso, J; Liu, J; Liu, S

Enhanced CO2 Resistance for Robust Oxygen Separation Through Tantalum-doped Perovskite Membranes.

Zhang, C Tian, H

Yang, D Sunarso, J Liu, J Liu, S

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Publisher:: WILEY-V C H VERLAG GMBH
Publication Type:: Journal Article
Citation:: ChemSusChem, 2016, 9, (5), pp. 505-512
Issue Date:: 2016-03-08

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Field	Value	Language
dc.contributor.author	Zhang, C
dc.contributor.author	Tian, H https://orcid.org/0000-0002-9581-0027
dc.contributor.author	Yang, D
dc.contributor.author	Sunarso, J
dc.contributor.author	Liu, J
dc.contributor.author	Liu, S
dc.date.accessioned	2022-08-02T21:15:19Z
dc.date.available	2022-08-02T21:15:19Z
dc.date.issued	2016-03-08
dc.identifier.citation	ChemSusChem, 2016, 9, (5), pp. 505-512
dc.identifier.issn	1864-5631
dc.identifier.issn	1864-564X
dc.identifier.uri	http://hdl.handle.net/10453/159501
dc.description.abstract	Oxygen selective membranes with enhanced oxygen permeability and CO2 resistance are highly required in sustainable clean energy generation technologies. Here, we present novel, cobalt-free, SrFe1-x Tax O3-δ (x=0, 0.025, 0.05, 0.1, 0.2) perovskite membranes. Ta-doping induced lattice structure progression from orthorhombic (x=0) to cubic (x=0.05). SrFe0.95 Ta0.05 O3-δ (SFT0.05) showed the highest oxygen flux rates reaching 0.85 mL min(-1) cm(-2) at 950 °C on a 1.0 mm-thick membrane. Surface decoration can increase the permeation rate further. Ta inclusion within the perovskite lattice of SrFeO3-δ (SF) enhanced the CO2 resistance of the membranes significantly as evidenced by the absence of the carbonate functional groups on the FTIR spectrum when exposed to CO2 atmosphere at 850 °C. The CO2 resistance of Ta-doped SF compounds correlates with the lower basicity and the higher binding energy for the lattice oxygen. SFT0.05 demonstrated high stability during long-term permeation tests under 10% CO2 atmosphere.
dc.format	Print-Electronic
dc.language	eng
dc.publisher	WILEY-V C H VERLAG GMBH
dc.relation.ispartof	ChemSusChem
dc.relation.isbasedon	10.1002/cssc.201501395
dc.rights	info:eu-repo/semantics/closedAccess
dc.subject	0301 Analytical Chemistry, 0399 Other Chemical Sciences, 0904 Chemical Engineering
dc.subject.classification	General Chemistry
dc.subject.classification	Organic Chemistry
dc.subject.mesh	Calcium Compounds
dc.subject.mesh	Carbon Dioxide
dc.subject.mesh	Membranes, Artificial
dc.subject.mesh	Microscopy, Electron, Scanning Transmission
dc.subject.mesh	Oxides
dc.subject.mesh	Oxygen
dc.subject.mesh	Permeability
dc.subject.mesh	Photoelectron Spectroscopy
dc.subject.mesh	Spectroscopy, Fourier Transform Infrared
dc.subject.mesh	Tantalum
dc.subject.mesh	Temperature
dc.subject.mesh	Titanium
dc.subject.mesh	Calcium Compounds
dc.subject.mesh	Carbon Dioxide
dc.subject.mesh	Oxides
dc.subject.mesh	Oxygen
dc.subject.mesh	Tantalum
dc.subject.mesh	Titanium
dc.subject.mesh	Membranes, Artificial
dc.subject.mesh	Microscopy, Electron, Scanning Transmission
dc.subject.mesh	Spectroscopy, Fourier Transform Infrared
dc.subject.mesh	Temperature
dc.subject.mesh	Permeability
dc.subject.mesh	Photoelectron Spectroscopy
dc.title	Enhanced CO2 Resistance for Robust Oxygen Separation Through Tantalum-doped Perovskite Membranes.
dc.type	Journal Article
utslib.citation.volume	9
utslib.location.activity	Germany
utslib.for	0301 Analytical Chemistry
utslib.for	0399 Other Chemical Sciences
utslib.for	0904 Chemical Engineering
pubs.organisational-group	/University of Technology Sydney
pubs.organisational-group	/University of Technology Sydney/Faculty of Science
pubs.organisational-group	/University of Technology Sydney/Faculty of Science/School of Mathematical and Physical Sciences
utslib.copyright.status	closed_access	*
dc.date.updated	2022-08-02T21:15:18Z
pubs.issue	5
pubs.publication-status	Published
pubs.volume	9
utslib.citation.issue	5

Abstract:

Oxygen selective membranes with enhanced oxygen permeability and CO2 resistance are highly required in sustainable clean energy generation technologies. Here, we present novel, cobalt-free, SrFe1-x Tax O3-δ (x=0, 0.025, 0.05, 0.1, 0.2) perovskite membranes. Ta-doping induced lattice structure progression from orthorhombic (x=0) to cubic (x=0.05). SrFe0.95 Ta0.05 O3-δ (SFT0.05) showed the highest oxygen flux rates reaching 0.85 mL min(-1) cm(-2) at 950 °C on a 1.0 mm-thick membrane. Surface decoration can increase the permeation rate further. Ta inclusion within the perovskite lattice of SrFeO3-δ (SF) enhanced the CO2 resistance of the membranes significantly as evidenced by the absence of the carbonate functional groups on the FTIR spectrum when exposed to CO2 atmosphere at 850 °C. The CO2 resistance of Ta-doped SF compounds correlates with the lower basicity and the higher binding energy for the lattice oxygen. SFT0.05 demonstrated high stability during long-term permeation tests under 10% CO2 atmosphere.

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http://hdl.handle.net/10453/159501