Solution-based synthesis routes to thermoelectric Bi2Ca2Co1.7Ox
The synthesis of Bi2Ca2Co1.7Ox misfit compounds by different processing routes, i.e. classical solid-state, and two solution methods namely sol–gel via nitrates and a polymer route, has been investigated. A comparison among the final products has been performed using DTA, TGA, X-ray diffraction, sca...
| Autores: | , , , , , |
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| Formato: | artículo |
| Estado: | Versión aceptada para publicación |
| Fecha de publicación: | 2011 |
| País: | España |
| Recursos: | Universidad de Zaragoza |
| Repositorio: | Zaguán. Repositorio Digital de la Universidad de Zaragoza |
| OAI Identifier: | oai:zaguan.unizar.es:168130 |
| Acesso em linha: | http://zaguan.unizar.es/record/168130 |
| Access Level: | acceso abierto |
| Resumo: | The synthesis of Bi2Ca2Co1.7Ox misfit compounds by different processing routes, i.e. classical solid-state, and two solution methods namely sol–gel via nitrates and a polymer route, has been investigated. A comparison among the final products has been performed using DTA, TGA, X-ray diffraction, scanning electron microscopy, and thermoelectric characterizations. All the samples obtained by solution synthesis show a very important increase in ZT, as compared to the solid state prepared samples, due to a significant decrease in the electrical resistivity values. |
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