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  1. Dictionary
    catalyst
    /ˈkatəlɪst/

    noun

    • 1. a substance that increases the rate of a chemical reaction without itself undergoing any permanent chemical change: "chlorine acts as a catalyst promoting the breakdown of ozone"

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  2. www.britannica.com › science › catalysisCatalysis | Chemistry, Classification, & Chemical Reactions

    4 days ago · Catalysis, the modification of the rate of a chemical reaction, usually an acceleration, by addition of a substance not consumed during the reaction. Each catalyst molecule may induce the transformation of many molecules of reactants. Learn about the history, classification, and reactions of catalysis.

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  4. www.vedantu.com › question-answer › define-catalystDefine catalyst. - Vedantu

    Jun 29, 2024 · A catalyst is a substance that is added to a chemical reaction to increase the reaction rate without getting consumed in the process. There are basically two types of catalysts: inorganic catalysts and organic catalysts.

  5. lsaglobal.com › most-effective-change-catalystEffective Change Catalyst - The Top 10 Criteria to Get Right

    Jun 17, 2024 · What Is an Effective Change Catalyst? Also called a Change Champion, we define an effective Change Catalyst as someone who helps to guide, navigate, and accelerate the people side of change with key stakeholders.

  6. library.fiveable.me › ap-bio › unit-3Enzyme Catalysis - AP Bio Study Guide 2024 | Fiveable

    Jun 18, 2024 · Catalyst: A catalyst is any substance that increases the rate of a chemical reaction by lowering its activation energy but remains unchanged itself after the reaction has occurred.

  7. www.nature.com › subjects › heterogeneous-catalysisHeterogeneous catalysis - Latest research and news | Nature

    Jun 27, 2024 · Definition. Heterogeneous catalysis is a type of catalysis in which the catalyst occupies a different phase from the reactants and products.

  8. www.nature.com › subjects › homogeneous-catalysisHomogeneous catalysis - Latest research and news | Nature

    Jun 26, 2024 · Homogeneous catalysis is a type of catalysis in which the catalyst operates in the same phase as the reactants — usually dissolved in a solvent. Mechanistic studies of homogeneous catalysts are...

  9. www.nature.com › subjects › electrocatalysisElectrocatalysis - Latest research and news | Nature

    Jun 26, 2024 · Definition. Electrocatalysis is a type of catalysis that results in the modification of the rate of an electrochemical reaction occurring on an electrode surface.