| Title | Novel Y2-xPrxRu2O7 (x=0-2) pyrochlore oxides prepared using a soft chemistry route and their electrical properties |
|---|---|
| Publication Type | Articolo su Rivista peer-reviewed |
| Year of Publication | 2010 |
| Authors | Abate, C., Esposito V., Duncan K., Nino J.C., Mirabile Gattia Daniele, Wachsman E.D., and Traversa E. |
| Journal | Journal of the American Ceramic Society |
| Volume | 93 |
| Pagination | 1970-1977 |
| ISSN | 00027820 |
| Keywords | Electric conductivity of solids, Electric properties, electrical conductivity, Electrical conductivity measurements, Electrical property, Field emission, Field emission microscopes, field emission scanning electron microscopy, Materials structure, Morphology, Nanometrics, oxidation, Oxidation state, Oxygen, Oxygen partial pressure, Precipitation (chemical), Precipitation methods, Probe methods, Pyrochlore oxide, Pyrochlore phase, Pyrochlore structures, Pyrochlores, Scanning electron microscopy, Soft chemistry routes, Synthesized powder, X ray diffraction, X ray diffraction analysis, X ray photoelectron spectroscopy |
| Abstract | Y2-xPrxRu2O7 (0≤x≤2) pyrochlore powders were prepared using a precipitation method, which allowed control of their composition and morphology. Materials structure and morphology were characterized by X-ray diffraction analysis and field emission scanning electron microscopy, respectively. All the synthesized powders exhibited a single pyrochlore phase with particle size depending on the Pr content. Powders with Pr content smaller than 25 mol% were nanometric. X-ray photoelectron spectroscopy analysis revealed a mixed oxidation state of both Pr and Ru, and a variation of the oxidation state of the elements in response to oxygen partial pressure changes. Electrical conductivity measurements were performed by dc 4-probe method at several temperatures, showing that increasing the Pr content in the A site of the pyrochlore structure increased the oxide electrical conductivity. © 2010 The American Ceramic Society. |
| Notes | cited By 9 |
| URL | https://www.scopus.com/inward/record.uri?eid=2-s2.0-77953741520&doi=10.1111%2fj.1551-2916.2010.03666.x&partnerID=40&md5=a4e32e6dd222166168ea7defe9c9850e |
| DOI | 10.1111/j.1551-2916.2010.03666.x |
| Citation Key | Abate20101970 |
