Nh4y and Hy Zeolites as Electrolytes in Hydrogen Sensors
Abstract Partly exchanged NH 4 Y and HY zeolites and H 3 O + β/β”-alumina have been studied as solid electrolyte in a Nernst-type hydrogen sensor. The zeolites were examined on structure using X-ray diffraction and TGA. The electrical properties were studied using impedance spectroscopy. As solid electrode material H 0.34 MoO 3 was investigated. NH 4 Y is a promising material. Response times of a test probe with NH 4 Y as solid electrolyte were less than 8 min. The sensor exhibits excellent Nernst response.