Ion selective sensors based on molybdenum bronzes

摘要

New solid state pH and sodium ion sensitive metal-oxide-type compositions, sensors and methods are disclosed. Performance thereof was demonstrated at ambient temperature with single crystals of several molybdenum bronzes (i.e. Na0.9Mo6O17, Li0.9Mo6O17, Li0.33MoO3 and K0.3MoO3) The pH sensors with Na-molybdenum-oxide bronzes show near ideal Nernstian behavior in the pH range 3-9. The response is not affected by the direction of the pH change.