One-pot synthesis of Ni-SSZ-13 zeolite using a nickel-amine complex as an efficient organic template

We show that a nickel-amine complex (nickel-diethylenetriamine, Ni-DETA) is an efficient organic template for the one-pot synthesis of Ni-SSZ-13 zeolite. The effects of the reaction compositions, including the molar ratios of SiO2/Al2O3, H2O/Al2O3, Ni-DETA/Al2O3, and Na2O/Al2O3, on the synthesis of the pure product were investigated using different temperatures and synthesis times. Physicochemical characterizations, including XRD, SEM, and 27Al NMR, show that the zeolitic product has good crystallinity, uniform crystals, and contains a tetrahedral Al3+ species. The N2 sorption isotherms, TG–DTA curves, IR spectra, and UV–Vis spectra show that Ni-DETA acts as a template in the product obtained. Interestingly, Ni-SSZ-13 zeolite is obtained by the conversion of Ni-Y zeolite produced in the crystallization process.