A series of K-Zn_0.4Co_2.6O₄|α-Al₂O₃|cordierite monolith was developed and optimized with respect to the active phase loading and concentration of potassium promoter. The catalysts were thoroughly characterized by XRD, μRS, XRF, SEM/TEM and their reactivity was evaluated in low-temperature N₂O decomposition in 5% N₂O and in a model mixture of gases containing typical contaminates for nitric acid plants (1.5% N₂O, 1% NO_x, 1% H₂O, 2.0% O₂) in TPSR and isothermal stepwise modes. The optimized catalysts exhibit high performance (X > 90% at T < 400 °C) due to favorable control of the active phase promotion (bulk and surface), morphology (~30 nm grains) and dispersion over the α-Al₂O₃ micrograins that constitute a compact washcoat.

一系列K-锌_0.4钴_2.6 ø ₄ |α-Al系₂ ö ₃ |堇青石整体被开发并相对于钾启动子的活性相装载和浓度进行了优化。通过XRD，μRS，XRF，SEM / TEM对该催化剂进行了全面表征，并在5％N ₂ O中的低温N ₂ O分解以及在硝酸工厂中含有典型污染物的模型气体混合物中对它们的反应性进行了评估（1.5在TPSR和等温分步模式中，N ₂ O，1％NO _x，1％H ₂ O，2.0％O ₂）。优化的催化剂表现出很高的性能（X > 90％的在Ť  <400℃）由于活性相促进良好的控制（本体和表面），形态（〜30nm的颗粒），并分散在所述α-Al ₂ ö ₃构成一个紧凑的修补基面涂层微米晶粒。