Definition, Betydelse & Anagram | Engelska ordet ADSORBED

Definition av ADSORBED

1. böjningsform av adsorb
2. perfektparticip av adsorb

Exempel på hur du använder ADSORBED i en mening

• The term was originally coined in 1756 by Swedish mineralogist Axel Fredrik Cronstedt, who observed that rapidly heating a material, believed to have been stilbite, produced large amounts of steam from water that had been adsorbed by the material.
• This interpretation challenged the century-old Adolf von Baeyer theory of photochemical reduction of CO adsorbed on chlorophyll which had guided decades of effort by Richard Willstätter, Arthur Stoll, and many others in vain searches for formaldehyde.
• In the case of platinum-ruthenium catalysts, the oxophilic nature of ruthenium is believed to promote the formation of hydroxyl radicals on its surface, which can then react with carbon monoxide adsorbed on the platinum atoms.
• Koc (Soil Organic Carbon-Water Partitioning Coefficient), the ratio of the adsorbed organic analyte to the dissolved.
• Macroscopically smooth and clean surfaces are microscopically rough and, in air, contaminated with oxides, adsorbed water vapor, and atmospheric contaminants.
• A reaction can also have an undefined reaction order with respect to a reactant if the rate is not simply proportional to some power of the concentration of that reactant; for example, one cannot talk about reaction order in the rate equation for a bimolecular reaction between adsorbed molecules:.
• For example, in hydrogenation with a metal catalyst, molecular dihydrogen first dissociates onto the metal surface into hydrogen atoms bound to the surface, and it is these monatomic hydrogens that react with the starting material, also previously adsorbed onto the surface.
• The inelastic scattering of electrons from surfaces is utilized to study electronic excitations or vibrational modes of the surface of a material or of molecules adsorbed to a surface.
• One is the change of the surface structure to a metastable structure, and another is cleaning the surface by the photodecomposition of dirt such as organic compounds adsorbed on the surface, after either of which water molecules can adsorb to the surface.
• In subsequent studies using the BET interpretation of nitrogen and water vapor adsorption isotherms, the reported area occupied by an adsorbed water molecule on fully hydroxylated silica ranged from 0.
• 1994 John Polanyi, "Photochemistry in the adsorbed state, using light as a scalpel and a crystal as an operating table".
• A monolayer is adsorbed homogeneously with each immersion or emersion step, thus films with very accurate thickness can be formed.
• Residue from cleaning products and cleaning activity (dusting, vacuuming, sweeping) has been shown to worsen indoor air quality (IAQ) by redistributing particulate matter (dust, dirt, human skin cells, organic matter, animal dander, particles from combustion, fibers from insulation, pollen, and polycyclic aromatic hydrocarbons) to which gaseous or liquid particles can be adsorbed.
• Assuming that every gas molecule hitting the surface sticks to it (that is, the sticking coefficient is 1), one langmuir (1 L) leads to a coverage of about one monolayer of the adsorbed gas molecules on the surface.
• Powders may contain various solid diluent ingredients which in some cases will have liquid components adsorbed to them, and have their own challenges in terms of retaining uniformity against sifting of different densities of components.
• Surface-enhanced Raman spectroscopy or surface-enhanced Raman scattering (SERS) is a surface-sensitive technique that enhances Raman scattering by molecules adsorbed on rough metal surfaces or by nanostructures such as plasmonic-magnetic silica nanotubes.
• 25%, but some of it gets adsorbed onto the borosilicate glass used for the tubes, so higher concentrations are used to take the losses into account; higher argon content is used in higher-power tubes, as hotter glass adsorbs more argon.
• An overlayer is a layer of adatoms adsorbed onto a surface, for instance onto the surface of a single crystal.
• In this mechanism, suggested by Irving Langmuir in 1921 and further developed by Cyril Hinshelwood in 1926, two molecules adsorb on neighboring sites and the adsorbed molecules undergo a bimolecular reaction:.
• A sorption pump does pump all gases effectively with the exception of hydrogen, helium and neon which do not condensate at liquid nitrogen temperatures and are not efficiently adsorbed by the molecular sieves because of their small molecular size.

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