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Fig. 1


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XRD patterns of Y zeolite at the different steps of the process and corresponding unit cell axis values. (a) Parent NaY zeolite, (b) dealuminated with SiCl4, (c) dealuminated and washed with HCl and (d) finally desilicated with NaAlO2. Dashed lines help for the visualization of the shift of reflections (331) and (533).

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