New metal-oxide-type pH sensors have been developed and tested with a direct solid state contact method. Performance was demonstrated at ambient temperature with single crystals of molybdenum oxide bronzes. The pH sensors responded reproducibly to the acidity changes of the analyte in the range of pH 4-9. The response time is less than 5 s for 90% response. pH sensors with single crystals of molybdenum oxide bronzes can be used to follow pH titrations.
All Science Journal Classification (ASJC) codes
- General Chemical Engineering