oa The Structure of Supported Platinum Catalysts

Modern techniques are steadily increasing our knowledge of the structure and properties of the supported platinum metal catalysts so widely used in chemical processing. The main function of the support, such as charcoal, alumina or silica, is to increase the surface area of the platinum metal and so to enhance catalyst performance, and methods for studying the dispersion of the platinum are therefore of considerable importance. This article describes the application of electron microscopy to the problem and compares the results given by this and other methods.