二氧化钛纳米管的制备及其在SCR脱硝领域应用的研究进展

Research progress of titania nanotubes preparation and its application in SCR denitrification

二氧化钛纳米管(TiNTs)是一种新型一维纳米材料,因其较大的比表面积和独特的中空管状结构备受关注。该文报道了TiNTs常用制备方法的合成原理和主要影响因素;探讨了TiNTs负载型催化剂微观形貌结构及其优化调控;阐述了TiNTs作为载体对催化剂低温脱硝活性和抗中毒性能的提升作用及其作用机制;最后,指出发展经济高效的TiNTs先进制备工艺,探明TiNTs载体与活性组分耦合增效机制,有望最大程度激发TiNTs负载型催化剂低温活性和抗中毒性能,从而推进TiNTs负载型催化剂在SCR脱硝领域的广泛应用。

Titania nanotube(TiNTs) is a new one-dimensional nano material and has attracted much attention due to its large specific surface area and unique hollow tubular structure. The synthesis mechanism and main influence factors of common preparation methods of TiNTs are reported. The microstructures of Ti NTs supported catalysts and their regulations are discussed. The promotional effect and its mechanism of Ti NTs as carrier on low-temperature denitration activity and anti-poisoning performance of catalyst are reported. Finally, it is pointed out that developing economical and efficient advanced preparation process of Ti NTs, exploring the coupling and synergistic mechanism between TiNTs carrier and active components,and hopefully stimulating the low-temperature activity and anti-poisoning performance of TiNTs supported catalyst to the maximum extent are the key and difficult points to solve the widespread application of TiNTs supported catalyst in SCR denitration field.