Università degli Studi di Milano, Dipartimento di Chimica Fisica ed Elettrochimica, via Golgi 19, 20133 Milano, Italy.
Ultrason Sonochem. 2010 Mar;17(3):610-6. doi: 10.1016/j.ultsonch.2009.11.004. Epub 2009 Nov 13.
Supported iron-based Fischer-Tropsch (FT) catalysts with high loading of active metal have been prepared using both traditional and innovative methods. In these latter the impregnation of silica support has been performed by adding a step involving an ultrasound (US) or a microwave (MW) treatment to improve the metal deposition and to increase the catalyst activity. FT results have indicated the catalysts prepared by US as the most efficient, particularly when sonication is performed in argon atmosphere. MW prepared samples have given results very similar to those obtained with the traditional method. In order to explain the different catalytic activity, all the samples have been characterized by BET, TPR, SEM, TEM, XRD and micro-Raman analyses.
采用传统和创新方法制备了负载量高的负载型铁基费托（FT）催化剂。在后一种方法中，通过添加超声（US）或微波（MW）处理步骤来浸渍二氧化硅载体，以提高金属沉积和增加催化剂活性。FT 结果表明，通过 US 制备的催化剂效率最高，特别是在氩气气氛中进行超声处理时。MW 制备的样品的结果与传统方法非常相似。为了解释不同的催化活性，对所有样品进行了 BET、TPR、SEM、TEM、XRD 和微拉曼分析。
