Fabrication of dense Ce0.9Mg0.1P2O7-PmOn composites by microwave heating for application as electrolyte in intermediate-temperature fuel cells
- Fabrication of dense Ce0.9Mg0.1P2O7-PmOn composites by microwave heating for application as electrolyte in intermediate-temperature fuel cells
- 헨켄스마이어디억; Bhupendra Singh; Nitika Devi; Lakshya Mathur; Rajesh K. Singh; Aman Bhardwaj; Sun-Ju Song
- Cerium pyrophosphate-phosphate composites; Microwave heating; Proton conducting electrolytes; Fuel cells
- Issue Date
- Ceramics international
- VOL 44, NO 6-6175
- In the present work, we report a method of fabrication of dense 10 mol% Mg2+-doped cerium pyrophosphate-phosphate (Ce0.9Mg0.1P2O7-PmOn; CMP-P) composites by microwave heat-treatment of the preformed Ce0.9Mg0.1P2O7 substrates in the presence of phosphoric acid. The composite was characterized by X-ray diffraction (XRD), scanning electron microscopy (SEM) and electrochemical impedance spectroscopy (EIS). The microwave heating at 375 °C for 5 min resulted in the formation of dense CMP-P composites which retained most of the pyrophosphate phase. The electrical conductivity was extracted from the EIS data and for the CMP-P composite prepared by H3PO4 loading for 10 h and microwave heat-treatment for 5 min it was found to be >10− 2 S m− 1 in 100– 250 °C range with a maximum of 0.062 S cm− 1 at 190 °C, which was significant for its application as electrolyte in intermediate temperature fuel cells.
- Appears in Collections:
- KIST Publication > Article
- Files in This Item:
There are no files associated with this item.
- RIS (EndNote)
- XLS (Excel)
Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.