Abstract
New metal-oxide type pH sensors with a direct solid state membrane contact have been developed and tested. Performance was demonstrated at close to ambient temperature with thin, 0.3-0.5 mm stabilized cerium oxide Ce0.80Sm0.20O1.9-x membranes. The pH sensors responded reproducibly to the acidity changes of the analyte in the range of pH 3-10. The response time is 1 to 2 minutes for 95% response. pH sensors with thin ceria membrane can be used also to follow acid-base titrations.
Original language | English (US) |
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Pages (from-to) | 257-263 |
Number of pages | 7 |
Journal | Solid State Ionics |
Volume | 85 |
Issue number | 1-4 |
DOIs | |
State | Published - May 1996 |
Externally published | Yes |
All Science Journal Classification (ASJC) codes
- Chemistry(all)
- Materials Science(all)
- Condensed Matter Physics