Hydrogen chemisorption is a suitable tool for the determination of palladium surface areas in
supported catalysts provided that chemisorption conditions are carefully chosen. The
method can also be used to determine surface areas of particles of a size where other
techniques, such as electron microscopy, X-ray linebroadening and small-angle scattering,
often fail through interference of the support. Combined surface area and hydrogen
chemisorption measurements made on palladium-black samples show that under the …