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Synthesis and struc...
Synthesis and structural characterization of perovskite type proton conducting BaZr1-xInxO3-delta (0.0 <= x <= 0.75)
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- Ahmed, Istaq, 1972 (author)
- Gothenburg University,Göteborgs universitet,Institutionen för kemi,Department of Chemistry,University of Gothenburg
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- Eriksson, Sten, 1958 (author)
- Chalmers tekniska högskola,Chalmers University of Technology
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- Ahlberg, Elisabet, 1952 (author)
- Gothenburg University,Göteborgs universitet,Institutionen för kemi,Department of Chemistry,University of Gothenburg
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- Knee, Christopher, 1973 (author)
- Gothenburg University,Göteborgs universitet,Institutionen för kemi,Department of Chemistry,University of Gothenburg
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- Berastegui, P. (author)
- Stockholms universitet,Stockholm University
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- Johansson, Lars-Gunnar, 1952 (author)
- Chalmers tekniska högskola,Chalmers University of Technology
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- Rundlöf, Håkan (author)
- Uppsala universitet,Institutionen för materialkemi,Uppsala University
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- Karlsson, Maths, 1978 (author)
- Chalmers tekniska högskola,Chalmers University of Technology
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- Matic, Aleksandar, 1968 (author)
- Chalmers tekniska högskola,Chalmers University of Technology
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- Börjesson, Lars, 1957 (author)
- Chalmers tekniska högskola,Chalmers University of Technology
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- Engberg, Dennis, 1965 (author)
- Chalmers tekniska högskola,Chalmers University of Technology
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(creator_code:org_t)
- Elsevier BV, 2006
- 2006
- English.
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In: Solid State Ionics. - : Elsevier BV. - 0167-2738 .- 1872-7689. ; 177:17-18, s. 1395-1403
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http://dx.doi.org/10...
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Abstract
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- Solid state sintering has been used to prepare the cubic perovskite structured compounds BaZr1-xInxO3-delta (0.0 <= x <= 0.75). Analysis of X-ray powder diffraction (XRPD) data reveals that the unit cell parameter, a, increases linearly with an increased Indium concentration. XRPD data was also used to demonstrate the completion of sample hydration, which was reached when the materials showed a set of single-phase Bragg-peaks. Dynamic thermogravimetric analysis (TGA) data showed that approx. 89% of the total number of available oxygen vacancies can be filled in BaZr1-xInxO3-delta for x=0.50, and that the maximum water uptake occurs below 300 degrees C. Rietveld analysis of the room temperature neutron powder diffraction (NPD) data confirmed the average cubic symmetry (space group Pm-3m), and an expansion of the unit cell parameter after the hydration reaction. The strong O-H stretch band, 2500-3500 cm(-1), in the infrared absorbance spectrum clearly manifests the presence of protons in the hydrated material. Proton conductivity of hydrated BaZr1-xInxO3-delta, x=0.75 was investigated during heating and cooling cycles under dry argon atmosphere. The total conductivity during the heating cycle was nearly two orders of magnitude greater than that of cooling cycle at 300 degrees C, whilst these values were similar at higher temperatures i.e. T > 600 degrees C.
Subject headings
- NATURVETENSKAP -- Kemi (hsv//swe)
- NATURAL SCIENCES -- Chemical Sciences (hsv//eng)
Keyword
- X-ray diffraction
- neutron diffraction
- proton conductors
- rietveld refinement
- perovskite
- Chemistry
- Kemi
- X-ray diffraction; Neutron diffraction; Proton conductors; Rietveld refinement; Perovskite
Publication and Content Type
- ref (subject category)
- art (subject category)
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Ahmed, Istaq, 19 ...
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Eriksson, Sten, ...
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Ahlberg, Elisabe ...
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Knee, Christophe ...
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Berastegui, P.
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Johansson, Lars- ...
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Rundlöf, Håkan
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Karlsson, Maths, ...
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Matic, Aleksanda ...
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Börjesson, Lars, ...
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Engberg, Dennis, ...
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- About the subject
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- NATURAL SCIENCES
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NATURAL SCIENCES
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and Chemical Science ...
- Articles in the publication
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Solid State Ioni ...
- By the university
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Uppsala University
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University of Gothenburg
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Chalmers University of Technology