Abstract
A stable and conductive composite material based on NH4PO3 and amorphous oxides (SiO2-P2O5) has been prepared by a wet-chemical route following with firing in ammonia. The composite showed high proton conductivity in both ambient air and humidified 5% H-2/Ar. A total conductivity of 6.0-19 mS/cm in the temperature range of 150-250 degrees C has been achieved. The conductivity (about 19 mS/cm) is stable in humidified 5% H-2/Ar during ageing at 175 degrees C for over 100 h. This material is a potential electrolyte for intermediate temperature fuel cells and other electrochemical devices.
| Original language | English |
|---|---|
| Pages (from-to) | 108-112 |
| Number of pages | 5 |
| Journal | Solid State Ionics |
| Volume | 192 |
| Issue number | 1 |
| DOIs | |
| Publication status | Published - 16 Jun 2011 |
Keywords
- Proton conductor
- Conductivity
- NH4PO3
- electrolyte
- composite
- polyphosphate
- stability
- behaviour
- acidity
- CSH2PO4
- silica
- IR
Fingerprint Dive into the research topics of 'A stable NH4PO3-glass proton conductor for intermediate temperature fuel cells'. Together they form a unique fingerprint.
Cite this
Jiang, Y., Matthieu, T., Lan, R., Xu, X., Cowin, P. I., & Tao, S. (2011). A stable NH4PO3-glass proton conductor for intermediate temperature fuel cells. Solid State Ionics , 192(1), 108-112. https://doi.org/10.1016/j.ssi.2010.11.028