A Solid-State Potentiometric Sensor Based on Polybenzimidazole for Hydrogen Determination in Air

Renaud Bouchet (1) , Sébastien Rosini (1) , Gérard Vitter (1) , Elisabeth Siebert (1)

1 LEPMI - Laboratoire d'Electrochimie et de Physico-chimie des Matériaux et des Interfaces

A solid-state electrochemical sensor for hydrogen determination in air is described. The device incorporates a protonic conductor based on polybenzimidazole doped with phosphoric acid as the electrolyte and a Ag-AgCl, KCl electrode as the reference electrode. Pt grid or Pt supported on carbon are tested as the sensitive electrode. The performance characteristics of both types of sensor including either the Pt grid or the carbon-supported Pt electrode are reported.

Mots clés: gas sensors; electrochemical sensors; solid electrolytes; polymers; hydrogen; electrochemical electrodes

Domaines: Matériaux

Renaud Bouchet, Sébastien Rosini, Gérard Vitter, Elisabeth Siebert. A Solid-State Potentiometric Sensor Based on Polybenzimidazole for Hydrogen Determination in Air. Journal of The Electrochemical Society, 2002, 149 (6), pp. H119-H122. ⟨10.1149/1.1471892⟩. ⟨hal-00418183⟩