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Surface chemistry. 14 languages ... Download as PDF; Printable version; ... Appearance. move to sidebar hide. From Wikipedia, the free encyclopedia. Redirect page ...
STM image of a quinacridone adsorbate.The self-assembled supramolecular chains of the organic semiconductor are adsorbed on a graphite surface.. Surface science is the study of physical and chemical phenomena that occur at the interface of two phases, including solid–liquid interfaces, solid–gas interfaces, solid–vacuum interfaces, and liquid–gas interfaces.
Langmuir was awarded the Nobel Prize in 1932 for his work concerning surface chemistry. He hypothesized that a given surface has a certain number of equivalent sites to which a species can "stick", either by physisorption or chemisorption. His theory began when he postulated that gaseous molecules do not rebound elastically from a surface, but ...
The second layer is composed of ions attracted to the surface charge via the Coulomb force, electrically screening the first layer. This second layer is loosely associated with the object. It is made of free ions that move in the fluid under the influence of electric attraction and thermal motion rather than being firmly anchored. It is thus ...
Sea surface microlayer; Segregation (materials science) Selective adsorption; Self-cleaning surfaces; Self-propulsion; Sessile drop technique; Specific surface area; Sputtering; Sticking coefficient; Stiction; Sum frequency generation spectroscopy; Sum-frequency generation; Supercritical adsorption; Superhydrophilicity; Superhydrophobic coating
is the rate constant for surface adsorption, m 3 ·mol −1 ·s −1 k − 1 {\displaystyle k_{-1}} is the rate constant for surface desorption, s −1 C S {\displaystyle C_{\mathrm {S} }} is highly related to the total surface area of the adsorbent: the greater the surface area, the more sites and the faster the reaction.
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Examples of nonpolar surfaces include the rocksalt (100) surface, the rutile (100), (110) and (001) surfaces and the pervoskite (100) surface. [2] An example of a polar surface is the rocksalt (111) surface. [2] In general, a polar surface is less stable than a nonpolar surface because a dipole moment increases the surface Gibbs energy.