| 摘要 |
PURPOSE:To obtain the title catalyst capable of efficiently removing ozone in exhaust gas and maintaining its performance over a long period of time by supporting active components in two layers. CONSTITUTION:A catalyst for decomposition of ozone is obtd. with Ag or Ag oxide and/or Ni2O3 or Ag or Ag oxide and/or Ni2O3 and MnO2 as active components forming the 1st layer (lower layer) and one or more among MnO2, Ni2O3 and Co2O3 as active components forming the 2nd layer (upper layer). The 1st layer can be produced by properly selecting a known method such as impregnation, kneading, wash coating, coprecipitation, precipitation or oxide mixing. The 2nd layer can be produced chiefly by wash coating. |
