Waidha, Aamir Iqbal ; Lepple, Maren ; Wissel, Kerstin ; Benes, Alexander ; Wollstadt, Stephan ; Slater, Peter R. ; Fortes, A. D. ; Clemens, Oliver (2018)
Synthesis, structure and electrical conductivity of a new perovskite type barium cobaltate BaCoO1.80(OH)0.86.
In: Dalton Transactions, 47 (32)
doi: 10.1039/C8DT01326H
Artikel, Bibliographie
Kurzbeschreibung (Abstract)
Perovskite oxides exhibiting mixed protonic and electronic conductivities have interesting applications in protonic ceramic fuel cells. In this work, we report on a hydrated phase of BaCoO1.80(OH)0.86 synthesized using nebulized spray pyrolysis. Structural analysis based on X-ray and neutron powder diffraction data showed that the compound is isotypic to BaFeO2.33(OH)0.33. The water loss behaviour was studied using simultaneous thermal analysis and high temperature X-ray diffraction, indicating that protons (respectively water) can be stabilized within the compound up to temperatures significantly above 673 K, confirmed by ex situ Fourier transform infrared spectroscopy studies. Impedance spectroscopy was used to determine the conductivity characteristics of BaCoO1.80(OH)0.86, finding and a total electrical conductivity in the order of 10−4 S cm−1 at ambient temperature with an activation energy of 0.28 eV.
| Typ des Eintrags: | Artikel |
|---|---|
| Erschienen: | 2018 |
| Autor(en): | Waidha, Aamir Iqbal ; Lepple, Maren ; Wissel, Kerstin ; Benes, Alexander ; Wollstadt, Stephan ; Slater, Peter R. ; Fortes, A. D. ; Clemens, Oliver |
| Art des Eintrags: | Bibliographie |
| Titel: | Synthesis, structure and electrical conductivity of a new perovskite type barium cobaltate BaCoO1.80(OH)0.86 |
| Sprache: | Englisch |
| Publikationsjahr: | 16 Juli 2018 |
| Verlag: | Royal Society of Chemistry |
| Titel der Zeitschrift, Zeitung oder Schriftenreihe: | Dalton Transactions |
| Jahrgang/Volume einer Zeitschrift: | 47 |
| (Heft-)Nummer: | 32 |
| DOI: | 10.1039/C8DT01326H |
| URL / URN: | https://doi.org/10.1039/C8DT01326H |
| Kurzbeschreibung (Abstract): | Perovskite oxides exhibiting mixed protonic and electronic conductivities have interesting applications in protonic ceramic fuel cells. In this work, we report on a hydrated phase of BaCoO1.80(OH)0.86 synthesized using nebulized spray pyrolysis. Structural analysis based on X-ray and neutron powder diffraction data showed that the compound is isotypic to BaFeO2.33(OH)0.33. The water loss behaviour was studied using simultaneous thermal analysis and high temperature X-ray diffraction, indicating that protons (respectively water) can be stabilized within the compound up to temperatures significantly above 673 K, confirmed by ex situ Fourier transform infrared spectroscopy studies. Impedance spectroscopy was used to determine the conductivity characteristics of BaCoO1.80(OH)0.86, finding and a total electrical conductivity in the order of 10−4 S cm−1 at ambient temperature with an activation energy of 0.28 eV. |
| Fachbereich(e)/-gebiet(e): | 11 Fachbereich Material- und Geowissenschaften 11 Fachbereich Material- und Geowissenschaften > Materialwissenschaft 11 Fachbereich Material- und Geowissenschaften > Materialwissenschaft > Fachgebiet Materialdesign durch Synthese 11 Fachbereich Material- und Geowissenschaften > Materialwissenschaft > Gemeinschaftslabor Nanomaterialien 07 Fachbereich Chemie 07 Fachbereich Chemie > Eduard Zintl-Institut > Fachgebiet Anorganische Chemie 07 Fachbereich Chemie > Eduard Zintl-Institut > Fachgebiet Physikalische Chemie |
| Hinterlegungsdatum: | 11 Dez 2018 14:24 |
| Letzte Änderung: | 04 Jun 2020 05:56 |
| PPN: | |
| Projekte: | O. Clemens acknowledges funding by DFG within CL551/2-1., Neutron diffraction beamtime at ISIS was provided by the Science and Technology Facilities Council (RB 1720041, raw data provided as supplementary material). |
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