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https://www.thestudentroom.co.uk/showthread.php?t=798413
A catalytic converter consists of a honeycombed ceramic support coated with a layer of powdered metal. Cars fitted with catalytic converters must use unleaded petrol. Explain the significance of the terms in italics. I know why you need unleaded petrol, but is the powdered metal and ceramic support just to increase the surface area?
https://auto.howstuffworks.com/catalytic-converter2.htm
There are two main types of structures used in catalytic converters -- honeycomb and ceramic beads. Most cars today use a honeycomb structure. In the next section, we'll look at the third stage of the conversion process and how you can get the most from your catalytic converter.
https://en.wikipedia.org/wiki/Catalytic_converter
The catalytic converter's construction is as follows: The catalyst support or substrate.For automotive catalytic converters, the core is usually a ceramic monolith that has a honeycomb structure (commonly square, not hexagonal). (Prior to the mid 1980s, the catalyst material was deposited on a packed bed of pellets, especially in early GM applications.) .) Metallic foil monoliths made of ...
https://www.catalyticconverter.org/faq/index.htm
Catalytic Converter FAQ. Q What is A Catalytic Converter? A It is a device which chemically converts harmful exhaust gases, produced by the internal combustion engine, into harmless carbon dioxide and water vapor. The converter was developed to meet stringent emission reduction levels as set forth by the Federal ERA and California Air Resources Board.
https://www.answers.com/Q/Why_are_catalytic_converters_honeycomb_shaped
There is no reason to do this. Modern catalytic converters do not restrict your exhaust flow. All you will gain by breaking it out is a check engine light coming on that will never go away.
https://www.catalyticconverterrecycling.com/FAQ/what-is-a-catalytic-converter
What is a catalytic converter? The catalytic converter is a car part that aims to convert the toxic gases and pollutants contained in the exhaust gases of an internal combustion engine into less harmful pollutants. To do this, it catalyzes an oxidation-reduction chemical reaction.
https://quizlet.com/10413882/transition-metals-as-catalysts-flash-cards/
Support mediums e.g. catalytic converters (ceramic lattic coated with rhodium- acts as catalyst to convert harmful waste gases to less harmful products) Why is a lattice structure effective for catalysts?
https://www.sciencedirect.com/science/article/pii/S0167299108630001
BACKGROUND Ceramic pellets, and more particularly ceramic monoliths, have been the substrates of choice for automotive catalytic converters over the past fifteen years. Recently however, many papers [ 1-41 have been published promoting certain advantages of metal foil substrates over conventional ceramic monolith substrates.Cited by: 4
https://chem.libretexts.org/Bookshelves/Physical_and_Theoretical_Chemistry_Textbook_Maps/Supplemental_Modules_(Physical_and_Theoretical_Chemistry)/Kinetics/Case_Studies%3A_Kinetics/Catalytic_Converters
Catalytic converters can also be found in generators, buses, trucks, and trains — almost everything with an internal combustion engine has a form of catalytic converter attached to its exhaust system. A catalytic converter is a simple device that uses basic redox reactions to reduce the pollutants a car makes. It converts around 98% of the ...
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