CrackNest: DLL Suite 2013 is an advanced DLL files Fixer that allows its users to fix DLL error and missing DLL files .Q:
Does the 'catalyst' in catalytic converter have to be a metal?
I read that catalytic converter is just a catalytic reaction between fuel and air, and any other catalyst doesn't work.
What if I replace the converter with ceramics (e.g. cordierite)?
A:
Catalytic converters are made from metal so it has to be metal. Ceramics is another option. The ceramic's just have a catalytic reaction. Depending on the application ceramics can be better or worse than metals. It's a tradeoff. If they can withstand higher temperatures and the metal wears away they are usually a good choice. Ceramic cannot work as well as metals at a low temperature like internal combustion engines.
Catalytic converter has to be metal because it is a metal, and the metal is alloyed with ceramic.
A:
Ceramic catalyst could have a better efficiency at low temperature because the ceramics are thermal insulators. (The metals are not)
A catalytic converter can be made of non-metal (ceramic, glass, semiconductors), but they are usually made of metals. Catalysts are not usually pure metal, but alloyed with other non-metals.
A:
One important note is that catalytic converters cannot catalyze carbon monoxide. So if the converter's purpose is simply to reduce tailpipe emissions, you'll need to add a dedicated canister to remove the CO. Ceramic converters have the advantage of being able to do that; metals cannot.
Many people think a ceramic converter is a good idea because it can withstand high temperatures. This is true, if you're under the hood of a car running near its maximum engine temperature. The exhaust gases (though the products, not the gases) at the high temperatures in the combustion chamber are actually more damaging to the ceramic than the metal, because the ceramic is a very porous material. So in normal operation, ceramic converters have no advantages in the temperature range in which they are intended to be used.
Ceramic is also more expensive than metal, but in this case the added expense is worthwhile because it is a permanent part that never has to be replaced. Metal converters will eventually wear be359ba680
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