Pore structure physical picture

Fig. 13 A chemical structure (A) in which the relationship between EW and m is given by EW = 100 m -I- 446, and a simplified physical picture (B) showing proton transport, in a pore of Nation. (View this art in color at www.dekker.com.)...

During the last fifteen years there has developed a fairly complete theory of reaction rates within the porous structure of solid catalysts. This theory not only gives us a physical picture of the phenomena occurring within catalyst pores but also provides a mathematical framework which quantitatively describes the phenomena. The results of the theory show that even the most fundamental properties of a catalyst may be influenced by its physical structure. Two catalysts, chemically identical, but having pores of different size, may have different activities, different selectivities, different temperature coefficients of reaction rate, and catalyst poisons may affect the two catalysts in quite different ways. The purpose of this paper is to describe the physical and mathematical picture which leads to these conclusions. 

II. The Physical Picture of the Pore Structure 1. Experimental Methods... 

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