I am confused between the meaning of loaded and supported catalysts. Are these two terms same or different?
Please clarify my doubt.
both are similar term, but when someone mentioned loaded then the amount of other metal loading to the core metal should mentioned. It confirmed that if the percentage of two or three metal loading changes then the catalyst may or may not be worked properly. like ration proportion 1 : 1 , 1 : 2, 1 : 3. At a particular condition if 1 : 1 ratio gives excellent yield, under same condition 1 : 3 ration did not afforded any product.
supported catalysis means, if we use the metal catalyst in catalytic amount which is enough to give a desired product. loaded catalysis means metal catalyst used in stoichiometric amount where the reaction reached equilibrium quickly.
Normally in catalysis both terms - loaded and supported - would be taken to mean the same as both would be produced by a liquid impregnation process onto a pre-formed support. So a gamma alumina loaded with 0.4% Pt would have been produced by impregnating the Alumina with a Pt solution to give a 0.4% Pt POST CALCINATION. The 0.4% Pt is being supported on the Alumina surface. The area where the terms are used loosely is in co-precipitated catalysis where an Alumina catalyst LOADED with 0.4% Pt can be produced by means other than by impregnation and produce very different activity results. [email protected]
There is basically no difference between the meanings of the two terms.
Dear Amid Laxman Sadgar . See the following useful link: https://www.wiley-vch.de/books/sample/3527316515_c01.pdf
Kindly see also the following useful link: https://www.sciencedirect.com/topics/engineering/supported-metal-catalyst
Also check please the following useful link: https://link.springer.com/content/pdf/10.1007%2F978-1-4684-2796-7_17.pdf
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