作　　者： ; ; ; ; ; ; ; (武伦福）;

机构地区： 广东工业大学轻工化工学院

出　　处： 《中国粉体技术》 2011年第5期11-14,共4页

摘　　要： 为实现采用催化燃烧法对甲醛进行净化处理，采用化学镀法制备Pd-堇青石蜂窝陶瓷整俸式催化剂，并对催化剂进行表征和活性评价。结果表明：化学镀法可以实现纳米Pd微晶颗粒在堇青石蜂窝陶瓷载体上均匀负载，焙烧后Pd0与载体结合牢固，具有良好的抗振荡性和热稳定性；500℃焙烧的Pd-堇青石蜂窝陶瓷整体式催化剂的催化活性最高，在甲醛质量浓度为0．4-10mg／m^3。空速为1500-6000h。的条件下，催化剂具有良好的活性。 The catalytic combustion method was used for the purification of formaldehyde. Pd-cordierite monolithic catalysts were prepared by electro- less plating method. The catalyst was characterized and had active evaluation. The results showed that Pd nano-particles were obtained and dispersed symmetrically over cordieritc substrates without the coating. PdO had a strong adhlhesion to the substratc and it had a good anti-vibration and thermostability after calcined. Pd-cordierite monolithic catalysts had the highest activity calcined at 500 ℃, the catalysts had a good catalytic activity in large rage of formaldehyde mass concentration of 0.4-10 g/m^3 and space velocity of 1 500-6 000 h^-1.

关 键 词： 化学镀 催化燃烧法 整体式催化剂

领　　域： [理学] [理学] [理学] [理学]