Mobil Crystalline Material (MCM) (not Mobil Composition of Matter) is the initial name given for a series of mesoporous materials that were first synthesized by Mobil's researchers in 1992. MCM-41 (Mobil Composition of Matter No. 41) and MCM-48 (Mobil Composition of Matter No. 48) are two of the most popular mesoporous molecular sieves that are keenly studied by researchers.
The most striking fact about the MCM-41 and MCM-48 is that, although composed of amorphous silica wall, they possess long range ordered framework with uniform mesopores. These materials also possess large surface area, which can be up to more than 1000 m2g-1. Moreover, the pore diameter of these materials can be nicely controlled within mesoporous range between 1.5 to 20 nm by adjusting the synthesis conditions and/or by employing surfactants with different chain lengths in their preparation.
MCM-41 and MCM-48 have been applied as catalysts for various chemical reactions, as a support for drug delivery system and as adsorbent in waste water treatment.
MCM-41 is used mesoporous material. For example, it is handled an adsorbent. It is similar material FCM-16.
Famous quotes containing the words composition and/or matter:
“There was not a grain of poetry in the whole composition of Lord Fawn, and poetry was what her very soul craved;Mpoetry, together with houses, champagne, jewels, and admiration.”
—Anthony Trollope (1815–1882)
“Essay writing is perhaps ... the easiest for the author and requires little more than what is called a fluency of words and a vivacity of expression to avoid dullness; but without ... a real foundation of matter ... an essay writer is very apt, like Dogberry in Shakespeare’s Much Ado About Nothing, to think that if he had the tediousness of a king, he would bestow it all upon his readers.”
—Sarah Fielding (1710–1768)