超声辐射对 PtSnNa/ZSM-5 催化剂丙烷脱氢催化性能的影响。
Effect of ultrasonic irradiation on the catalytic performance of PtSnNa/ZSM-5 catalyst for propane dehydrogenation.
机构信息
School of Chemistry and Chemical Engineering, Southeast University, Nanjing 211189, PR China.
出版信息
Ultrason Sonochem. 2011 Jan;18(1):19-22. doi: 10.1016/j.ultsonch.2010.04.005. Epub 2010 Apr 22.
Effects of ultrasonic irradiation on the catalytic performance of PtSnNa/ZSM-5 catalyst for propane dehydrogenation were studied. XRD, TEM and TPDA were used to characterize the catalysts. From the results of XRD, the structure of ZSM-5 was not destroyed by the ultrasound. Ultrasound promoted the dispersion of Pt on the surface of the carrier during impregnation and decreased the size of Pt particles. Compared with the catalyst prepared by conventional impregnation, the supported catalyst prepared by ultrasonic irradiation showed better catalytic activity in propane dehydrogenation.
研究了超声辐射对 PtSnNa/ZSM-5 催化剂丙烷脱氢催化性能的影响。采用 XRD、TEM 和 TPDA 对催化剂进行了表征。从 XRD 的结果来看，超声并未破坏 ZSM-5 的结构。超声在浸渍过程中促进了 Pt 在载体表面的分散，并减小了 Pt 颗粒的尺寸。与传统浸渍法制备的催化剂相比，超声辐射制备的负载型催化剂在丙烷脱氢反应中表现出更好的催化活性。
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