Published January 28, 2004
| Version v1
Journal article
The Pr4+ ions in Mg doped PrGaO3 perovskites
Description
In this study, the valence state of Pr in Mg doped PrGaO3 perovskites was investigated. It is found that Pr4+ ions are created in samples doped with low-valence ions, for example, with Mg2+. The color of the doped samples changes from black to light green after being treated in H2 atmosphere, which shows that the Pr4+ ions in the sample are reduced to Pr3+ ions. The open circuit voltage of the solid oxide fuel cell (SOFC) using PrGa0.95Mg0.05O3 as the electrolyte increases with time and the X-ray photoelectron spectroscopy (XPS) data of PrGa0.9Mg0.1O3 also show the existence of Pr4+ ions in Mg doped PrGaO3
Additional details
Identifiers
- DOI
- 10.1016/S0925-8388;
- PII
- S0925838803004845;
Publishing Information
- Journal Title
- Journal of Alloys and Compounds
- Journal Volume
- 363
- Journal Issue
- 1-2
- Journal Page Range
- p. 61-63
- ISSN
- 0925-8388
- CODEN
- JALCEU
INIS
- Country of Publication
- Netherlands
- Country of Input or Organization
- International Atomic Energy Agency (IAEA)
- INIS RN
- 37047880
- Subject category
- S36: MATERIALS SCIENCE;
- Descriptors DEI
- DOPED MATERIALS; ELECTRIC POTENTIAL; GALLIUM COMPOUNDS; HYDROGEN; MAGNESIUM IONS; OXIDES; PEROVSKITES; PRASEODYMIUM COMPOUNDS; PRASEODYMIUM IONS; SOLID OXIDE FUEL CELLS; SYNTHESIS; VALENCE; X-RAY DIFFRACTION; X-RAY PHOTOELECTRON SPECTROSCOPY
- Descriptors DEC
- CHALCOGENIDES; CHARGED PARTICLES; COHERENT SCATTERING; DIFFRACTION; DIRECT ENERGY CONVERTERS; ELECTROCHEMICAL CELLS; ELECTRON SPECTROSCOPY; ELEMENTS; FUEL CELLS; HIGH-TEMPERATURE FUEL CELLS; IONS; MATERIALS; MINERALS; NONMETALS; OXYGEN COMPOUNDS; PHOTOELECTRON SPECTROSCOPY; RARE EARTH COMPOUNDS; SCATTERING; SOLID ELECTROLYTE FUEL CELLS; SPECTROSCOPY
Optional Information
- Copyright
- Copyright (c) 2003 Elsevier Science B.V., Amsterdam, The Netherlands, All rights reserved.