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Catalysis. A range of industrial catalysts in pellet form. An air filter that uses a low-temperature oxidation catalyst to convert carbon monoxide to less toxic carbon dioxide at room temperature. It can also remove formaldehyde from the air. Catalysis ( / kəˈtæləsɪs /) is the increase in rate of a chemical reaction due to an added ...
General Catalyst has been the most active investor in healthcare since the beginning of 2020. [29] [30] In October 2023, the company announced plans to acquire a health system and "then use it as a proving ground for technology that its portfolio companies sell, including generative artificial intelligence-powered solutions applied to health ...
Selective catalytic reduction. Selective catalytic reduction ( SCR) means of converting nitrogen oxides, also referred to as NO. x with the aid of a catalyst into diatomic nitrogen ( N. 2 ), and water ( H. 2O ). A reductant, typically anhydrous ammonia ( NH. 3 ), aqueous ammonia ( NH. 4OH ), or a urea ( CO (NH. 2)
Quantum catalyst. In quantum information theory, a quantum catalyst is a special ancillary quantum state whose presence enables certain local transformations that would otherwise be impossible. [1] [2] Quantum catalytic behaviour has been shown to arise from the phenomenon of catalytic majorization.
Phase-transfer catalysis is a special form of catalysis and can act through homogeneous catalysis or heterogeneous catalysis methods depending on the catalyst used. Ionic reactants are often soluble in an aqueous phase but insoluble in an organic phase in the absence of the phase-transfer catalyst. The catalyst functions like a detergent for ...
Catalytic cycle. In chemistry, a catalytic cycle is a multistep reaction mechanism that involves a catalyst. [1] The catalytic cycle is the main method for describing the role of catalysts in biochemistry, organometallic chemistry, bioinorganic chemistry, materials science, etc. Since catalysts are regenerated, catalytic cycles are usually ...
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Passivation involves creation of an outer layer of shield material that is applied as a microcoating, created by chemical reaction with the base material, or allowed to build by spontaneous oxidation in the air. As a technique, passivation is the use of a light coat of a protective material, such as metal oxide, to create a shield against ...