Application of alkali metal molybdenum bronzes as Na+-ion selective sensors up to 70°C

G. Kakali, K. V. Ramanujachary, M. Greenblatt

Research output: Contribution to journalArticlepeer-review

4 Scopus citations

Abstract

Single crystals of the alkali metal bronzes Na0.9Mo6O17, (Li0.5Na0.5)0.9Mo6O17, Li0.9Mo6O17 and Li0.33MoO3 were tested as Na+-ion sensors. It is shown that single crystals of Na0.9Mo6O17 fabricated into electrodes by direct solid-state contact can perform as Na+-selective electrodes at temperatures from ambient to 70°C. These sensors respond rapidly and linearly to changing Na+ concentration in the range 0.1-1 M and exhibit good stability versus time and temperature. The (Li0.5Na0.5)0.9Mo6O17 crystal was insensitive to changing Na+ concentration while the Li0.9Mo6O17 and Li0.33MoO3 showed nonlinear behavior.

Original languageEnglish (US)
Pages (from-to)58-62
Number of pages5
JournalSensors and Actuators, B: Chemical
Volume79
Issue number1
DOIs
StatePublished - Sep 25 2001

All Science Journal Classification (ASJC) codes

  • Electronic, Optical and Magnetic Materials
  • Instrumentation
  • Condensed Matter Physics
  • Surfaces, Coatings and Films
  • Metals and Alloys
  • Electrical and Electronic Engineering
  • Materials Chemistry

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