chemisorption
111Cluster chemistry — In chemistry, a cluster is an ensemble of bound atoms intermediate in size between a molecule and a bulk solid. Clusters exist of diverse stoichiometries and nuclearities. For example, carbon and boron atoms form fullerene and borane clusters,… …
112Sticking probability — The sticking probability is the probability that molecules are trapped on surfaces and adsorb chemically. From Langmuir s adsorption isotherm, molecules cannot adsorb on surfaces when the adsorption sites are already occupied by other molecules,… …
113Corrosion inhibitor — A corrosion inhibitor is a chemical compound that, when added to a liquid or gas, decreases the corrosion rate of a material, typically a metal or an alloy.[1] The effectiveness of a corrosion inhibitor depends on fluid composition, quantity of… …
114Atomic layer epitaxy — (ALE), now more generally called Atomic Layer Deposition, is a specialized form of epitaxy that typically deposit alternating monolayers of two elements onto a substrate. The crystal lattice structure achieved is thin, uniform, and aligned with… …
115Hugh Stott Taylor — (6 February 1890 17 April 1974) was an English chemist primarily interested in catalysis. In 1928, in a landmark contribution to catalytic theory, Taylor suggested that a catalyzed chemical reaction is not catalyzed over the entire solid surface… …
116X-ray standing waves — The X ray standing wave technique = The X ray standing wave (XSW) technique can be used to study the structure of surfaces and interfaces with high spatial resolution and chemical selectivity. Pioneered by B.W. Batterman in the 1960s the… …
117Static secondary ion mass spectrometry — Static secondary ion mass spectrometry, or static SIMS is a technique for chemical analysis including elemental composition and chemical structure of the uppermost atomic or molecular layer of a solid which may be a metal, semiconductor or… …
118Surface diffusion — [ adatom diffusing across a square surface lattice. Note the frequency of vibration of the adatom is greater than the jump rate to nearby sites. Also, the model displays examples of both nearest neighbor jumps (straight) and next nearest neighbor …
119Segregation in materials — refers to the enrichment of a material constituent at a free surface or an internal interface of a material. In a polycrystalline solid, a segregation site can be a dislocation, grain boundary, stacking fault, or an interface with a precipitate… …
120Medard W. Welch Award — The award is given to scientists who demonstrated outstanding research in the fields pertinent to American Vacuum Society. It was established in 1969 in memory of Memory of Medard W. Welch, a founder of American Vacuum Society. The prestige of… …
