autocatalysis

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Related to autocatalysts: autocatalytic

autocatalysis

 [aw″to-kah-tal´ĭ-sis]
an increase in the rate of a chemical reaction in which a product of the reaction itself hastens or intensifies the rate.

au·to·ca·tal·y·sis

(aw'tō-kă-tal'i-sis),
A reaction in which one or more of the products acts to catalyze the reaction; after beginning slowly, the rate of such a reaction rapidly increases. Compare: chain reaction.
Synonym(s): autoactivation

au·to·ca·tal·y·sis

(aw'tō-kă-tal'i-sis)
A reaction in which one or more of the products formed acts to catalyze the reaction; beginning slowly, the rate of such a reaction rapidly increases.
Compare: chain reaction
References in periodicals archive ?
The autocatalyst market, the largest segment, grew by over 10 per cent, mainly due to the fitment of emission controls to light and heavy duty diesel vehicles.
Autocatalyst demand will fall by 2% to 3.13 million oz, reflecting weakness in the world's two largest markets for diesel cars, Europe and India.
Autocatalysts, used to clean exhaust fumes, account for more than half of global platinum use.
While the group, which is a leading producer of autocatalysts for the automotive industry, warned that it would be hit in the second half by falling global car sales, process technologies, based at Billingham and Stockton, had benefited from tightening environmental legislation.
Platinum is used in autocatalysts to filter out carbon monoxide and particulates.
For years, erratic shipments of PGMs, used mainly in autocatalysts to cleanse car exhaust fumes, have created market instability.
A heavier loading of platinum is used in the diesel autocatalysts most commonly seen in Europe, while the petrol engines favoured in the United States and China carry a heavier loading of palladium.
Speciality chemicals company Johnson Matthey ( a leading manufacturer of autocatalysts and pollution control systems ( should post an improvement in annual profits on Thursday, despite the impact of a weak dollar.
Speciality chemicals company Johnson Matthey - a leading manufacturer of autocatalysts and pollution control systems - should post an improvement in annual profits on Thursday, despite the impact of a weak dollar.
In addition to processing Stillwater Mining concentrates, the smelter processed more than 2 st/d of spent autocatalysts containing 29.9K oz of precious metals in 2000.
Platinum maintained its historically unusual discount to gold, which briefly reversed earlier this month, as buyers worried about demand for the white metal, which is chiefly used in autocatalysts.