COセンサ用のH₂選択酸化触媒の調製方法

抄録

Influences of preparation procedure of tin dioxide catalyst on H₂ oxidation selectivity are investigated. The tin dioxide which was prepared by calcination of precipitate obtained by neutralization of SnCl₂ solution with K₂CO₃ solution, was found to be a high selective H₂ oxidation catalyst. This catalyst is employed as a cover for the sample gas electrode of CO sensor element made of stabilized ZrO₂. The output of this sensor element for 200 ppm of CO is higher than that for 2000 ppm of H₂.