“…[15][16][17][18] Unfortunately,t he product SiO 2 /Al 2 O 3 molar ratios are limited to an arrow range, [19] or the precise control of synthesis parameters concerning both seeds (either solid seed crystalso r seed gels) and reactant mixtures is sophisticated thus leading to poor reproducibility of the processes. [25,26] Alternatively, some metal species (including salts, oxides, and hydroxides) such as zinc nitrate, [27] sodium chloride, [28] lithi-um hydroxide, [16] magnesium chloride, [29] and [N(CH 2 CH 3 ) 4 ] 2 [NiCl 4 ] [30] have been introduced in the synthesis of zeolite.T hereinto, they act as morphologym odifying agents or charge compensating agents (if at all). [25,26] Alternatively, some metal species (including salts, oxides, and hydroxides) such as zinc nitrate, [27] sodium chloride, [28] lithi-um hydroxide, [16] magnesium chloride, [29] and [N(CH 2 CH 3 ) 4 ] 2 [NiCl 4 ] [30] have been introduced in the synthesis of zeolite.T hereinto, they act as morphologym odifying agents or charge compensating agents (if at all).…”