Catalysis involves just about every field of scientific study. This
means that a multidisciplinary approach is needed in catalytic studies.
Catalysis involves breaking and forming new bonds and this requires an
under- standing of either adsorption by bonding to an extended
structures or bonding in a coordination sphere. Any understanding of
catalytic action must necessarily involve an understanding of this
bonding. Even 200 years ago scientists were aware that a properly
treated mate- rial, such as charcoal, could adsorb an enormous quantity
of gas. In 1812, de Sassasure (English translation, Annal Philosphy, 6,
241 (1815 pro- posed that the ability of a material to increase the rate
of chemical reac- tion was due to adsorption of the material in the fine
structure of the solid so that the concentrations of the reactants were
significantly increased, and this increase in concentration led to an
increase in reaction rate. During the 1800s, little advance was made in
the understanding of adsorp- tion.