ETCH-DECORATION ELECTRON MICROSCOPY STUDIES OF THE GAS-CARBON REACTIONS.

The etch-decoration electron microscopy technique serves as a unique tool for measuring the rates of gas-carbon reactions on well-defined active sites on graphite. The turnover frequency on a single-layer edge is very different from that on multilayer edges measured by other techniques. Hence the etch-decoration technique does not give overall rates for any carbon meterial. The technique has been well developed. A step-by-step, easy-to-follow experimental procedure which has been used to obtain reproducible data is given.