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.
出处
《中国粉体技术》
CAS
北大核心
2011年第5期11-14,共4页
China Powder Science and Technology
基金
广东省大学生创新实验项目
编号:1184510052
广州市科技计划项目
编号:10A721114350
关键词
化学镀
催化燃烧法
整体式催化剂
electroless plating
catalytic combustion
monolithic catalysts
