A new type of chlorine gas sensor with the combination of Cl- anion and Al3+ cation conducting solid electrolytes

A chlorine gas (Cl-2) sensor was fabricated with the combination of monovalent Cl- anion and trivalent Al3+ cation conducting solid electrolytes. The time necessary to obtain a 90% response was less than several minutes, and also reproducible response was continuously demonstrated. An exact 1:1 relationship was observed between the sensor output and the logarithm of the chlorine gas concentration, and the relation exactly obeys the Nernst theoretical equation. (C) 2002 Elsevier Science B.V. All rights reserved.