1. Enhanced ionic conductivity of co-doped ceria solid solutions and applications in IT-SOFCs.
- Author
-
Srivastava, Monika, Kumar, Kuldeep, Jaiswal, Nandini, Singh, Nitish Kumar, Kumar, Devendra, and Parkash, Om
- Subjects
- *
IONIC conductivity , *DOPED semiconductors , *CERIUM oxides , *SOLID solutions , *SOLID oxide fuel cells , *MICROWAVE chemistry , *THERMAL analysis - Abstract
Abstract: Co-doping effect of Sm3+ and Ca2+ ions in ceria has been studied using the microwave assisted synthesis (MAS) technique. Thermal response of the prepared compositions was studied using differential thermal and thermo-gravimetric techniques (DTA/TG). Structural studies were performed using X-ray diffraction (XRD) and fourier transform infrared spectroscopy (FT-IR). The impedance analyses were performed over a wide range of temperatures (200–500°C) and frequency (100Hz to 1MHz). The conductivity data show that 10% doping of both Sm3+ and Ca2+ in ceria provides a significant rise in the conductivity value of pure ceria. [Copyright &y& Elsevier]
- Published
- 2014
- Full Text
- View/download PDF