Abstract
Abstract The use of metal particles in heterogenous catalysis demands a continuous development of particle preparation methods and of methods for studying these particles. Two ways of preparing silver particles for high-resolution electron microscopy (HREM) studies have been used in this investigation; in situ reduction of silver iodide (AgI) in the electron beam and reduction of silver acetate suspended in acetic acid. The reduction of AgI in the electron beam is a straightforward method. Using an intense electron beam the method produces finite silver particles spread uniformly over the amorphous carbon support film. The preparation of silver particles by reduction of silver acetate is similar to particle preparation methods which have previously been used for other metals. The particle sample is air stable and water soluble which makes the specimen preparation for HREM easy. The two preparation methods give particle specimens well suited to HREM. Small silver particles are shown to undergo the same str...
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