Zeolite Y: Synthesis, Modification, and Properties—A Case Revisited
Figure 13
29Si MAS NMR spectra of zeolites NaY (a), steamed DAY (b), acid leached DAY (c), alkaline leached DAY (d), and alkaline leached DAY after acid extraction of the extraframework aluminium with moderate (e) and intensive stirring (f) [130].
