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catalysis    
n. 触媒作用,接触反应,催化作用

触媒作用,接触反应,催化作用

catalysis
n 1: acceleration of a chemical reaction induced the presence of
material that is chemically unchanged at the end of the
reaction; "of the top 50 commodity chemicals, 30 are
created directly by catalysis and another 6 are made from
raw materials that are catalytically produced" [synonym:
{catalysis}, {contact action}]

Catalysis \Ca*tal"y*sis\, n.; pl. {Catalyse}.[ML., fr. Gr. ?
dissolution, fr. ? to destroy, dissolve; kata` down, wholly
? to loose.]
[1913 Webster]
1. Dissolution; degeneration; decay. [R.]
[1913 Webster]

Sad catalysis and declension of piety. --Evelyn.
[1913 Webster]

2. (Chem.)
(a) A process by which a chemical reaction is accelerated
in the presence of certain agents which were formerly
believed to exert an influence by mere contact. It is
now believed that such reactions are attended with the
formation of an intermediate compound or compounds, so
that by alternate composition and decomposition the
agent is apparenty left unchanged; as, the catalysis
of making ether from alcohol by means of sulphuric
acid; or catalysis in the action of enzymes (as
diastase, or ptyalin) on starch.
(b) The catalytic force.
[1913 Webster PJC]

63 Moby Thesaurus words for "catalysis":
acetification, acidification, acidulation, alkalization, avatar,
carbonation, catabolism, catalyst, chemicalization,
consubstantiation, decay, dialysis, displacement, dissociation,
electrolysis, ferment, fermentation, fission, heterotopia,
hydrogenation, hydrolysis, hydrolyst, isomerism, metabolism,
metagenesis, metamerism, metamerization, metamorphism,
metamorphosis, metastasis, metathesis, metempsychosis, mutant,
mutated form, mutation, nitration, oxidation, oxidization,
permutation, phosphatization, photolysis, polymerism,
polymerization, position isomerism, reduction, reincarnation,
saturization, splitting, sport, thermolysis, transanimation,
transfiguration, transfigurement, transformation, transformism,
translation, translocation, transmigration, transmogrification,
transmutation, transposition, transubstantiation, working


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  • Catalysis - Wikipedia
    Catalysis affects the environment by increasing the efficiency of industrial processes, but catalysis also plays a direct role in the environment A notable example is the catalytic role of chlorine free radicals in the breakdown of ozone
  • Catalysis | Chemistry, Classification, Chemical Reactions | Britannica
    catalysis, in chemistry, the modification of the rate of a chemical reaction, usually an acceleration, by addition of a substance not consumed during the reaction
  • 17. 6: Catalysts and Catalysis - Chemistry LibreTexts
    Catalysts play an essential role in our modern industrial economy, in our stewardship of the environment, and in all biological processes This lesson will give you a glimpse into the wonderful world of catalysts, helping you to understand what they are and how they work What are Catalysts?
  • Catalysis - an overview | ScienceDirect Topics
    Catalysis is defined as the process of modifying the rate of a chemical reaction, typically accelerating it, by adding a substance that is not consumed in the reaction
  • Catalytic Reaction (Catalysis): Definition, Types, Mechanism
    Catalytic reaction or catalysis is the process that alters the rate of a chemical reaction under the influence of a catalyst A catalyst is a chemical substance added to a reaction to either accelerate or decelerate the reaction rate without itself undergoing any change
  • 18. 7 Catalysis – Chemistry Fundamentals
    Figure 18 7 1 shows reaction diagrams for a chemical process in the absence and presence of a catalyst Inspection of the diagrams reveals several traits of these reactions Consistent with the fact that the two diagrams represent the same overall reaction, both curves begin and end at the same energies (in this case, because products are more energetic than reactants, the reaction is
  • CATALYSIS Definition Meaning - Merriam-Webster
    The meaning of CATALYSIS is a modification and especially increase in the rate of a chemical reaction induced by material unchanged chemically at the end of the reaction
  • What is Catalysis? - American Chemical Society
    In chemistry, catalysis refers to changing the speed of a reaction using a substance that’s not consumed by the reaction
  • Catalysis - PNNL
    Catalysis can be generally defined into three broad categories: homogeneous catalysis, heterogeneous catalysis, and biocatalysis In homogeneous catalysis, both the reactants and the catalyst are in solution with either an aqueous or organic solvent





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