Excerpt from A Molecular Complex Model for the Chemisorption of Hydrogen on a Nickel Surface We present here some preliminary results of the appli cation of atomic pseudopotentials to the construction of a simple model of the chemisorption of hydrogen molecules on a transition metal surface. The experimental facts which must be understood are the following: (1) Nickel chemisorbs hydrogen molecules dissociatively down to liquid nitrogen temperature The reaction is considered to take place with little or no activation energy. (2) Copper which is similar to nickel except that it contains a filled 3d band does not dissociatively chemisorb hydrogen molecules, although copper strongly absorbs hydrogen atoms The ability of nickel to dissociatively chemisorb hydrogen is generally ascribed to the unfilled d band of the nickel. The aim of this investigation is to understand the role of the electronic structure of a transitions metal, particularly the d electrons, in determining its catalytic activity. About the Publisher Forgotten Books publishes hundreds of thousands of rare and classic books. Find more at www.forgottenbooks.com This book is a reproduction of an important historical work. Forgotten Books uses state-of-the-art technology to digitally reconstruct the work, preserving the original format whilst repairing imperfections present in the aged copy. In rare cases, an imperfection in the original, such as a blemish or missing page, may be replicated in our edition. We do, however, repair the vast majority of imperfections successfully; any imperfections that remain are intentionally left to preserve the state of such historical works.