A highly active Ce/CoMnAl-LDO catalyst for low-temperature NH₃-SCR with good thermal stability and SO₂/H₂O resistance was designed from layered double hydroxides (LDHs). At 100–250 °C, Ce_0.5/Co₁Mn_0.5Al_0.5O_x-LDO showed practically ~100% NO_x conversion compared to Ce-Co-Mn/γ-Al₂O₃ (63.4–90.3%) of the same metal composition prepared by the common wet-impregnation method. The LDO catalytic material showed very stable NO_x conversion of 83.3% at 200 °C after 10 h test with 100 ppm SO₂ in the feed stream, superior performance when compared to the control catalysts Co₁Mn_0.5Al_0.5O_x (60.2%) and Ce-Co-Mn/γ-Al₂O₃ (28%). The thermal stability and resistance to water vapor were also investigated. Various studies suggested that the excellent performance of Ce_0.5/Co₁Mn_0.5Al_0.5O_x-LDO can be attributed to the high dispersion of active metal species, large specific surface area, moderate redox capacity and strong acidity.

由层状双氢氧化物（LDHs）设计了一种用于低温NH ₃ -SCR的高活性Ce / CoMnAlAl-LDO催化剂，具有良好的热稳定性和耐SO ₂ / H ₂ O性能。在100-250℃下，CE _0.5 / Co的₁的Mn _0.5的Al _0.5 ø _X -LDO表明几乎〜100％NO _X转化率相比的Ce-Co-Mn的/γ-Al系₂ Ö ₃的（63.4-90.3％）用普通的湿法浸渍法制得的金属成分相同。该LDO催化材料显示出非常稳定的NO _X的83.3％的转化率在H检验200℃后10℃用100ppm SO ₂进料流中，性能优越当与对照相比，催化剂钴₁的Mn _0.5的Al _0.5 ø _X（60.2％）和Ce-Co-Mn的/γ-Al系₂ ö ₃（28％）。还研究了热稳定性和耐水蒸气性。各种研究表明，Ce _0.5 / Co ₁ Mn _0.5 Al _0.5 O _x -LDO的优异性能可归因于活性金属种类的高分散性，大的比表面积，适度的氧化还原能力和强酸性。