|Title||Detection of the ’invisible aluminium’ and characterisation of the multiple aluminium environments in zeolite USY by high-field solid-state NMR|
|Publication Type||Journal Article|
|Year of Publication||2000|
|Authors||Fyfe, CA, Bretherton, JL, Lam, LY|
|Type of Article||Article|
|Keywords||ACID SITES, AL-27 NMR, ANGLE-SPINNING NMR, H-Y ZEOLITES|
The detection of all of the aluminium present in steamed zeolite H-Y catalysts by Al-27 MAS NMR at high field (18.8 T, 800 MHz for H-1) is reported; further, it is shown that it is possible by Al-27 MAS and MQMAS measurements to clearly identify four separate aluminium environments characteristic of these materials and to unambiguously assign their coordinations.
|URL||<Go to ISI>://000088914800008|