## 1 Introduction  
With the increasingly strict requirements of environmental protection laws and regulations and the rapid development of the automobile industry, the demand for new mechanical equipment for high-quality lubricating oil is increasing gradually, leading to higher quality requirements for oil products [1]. As a result, the development of low sulfur, low ash, high oxidation resistance, low volatility and good viscosity is imperative. Therefore, isomerization dewaxing technology is known as an important technological progress in the field of petroleum refining in recent years [2], and the core technology is the hydroisomerization catalyst. The hydroisomerization of long-chain n-alkanes is mainly carried out on bifunctional catalysts. The isomerization performance of bifunctional catalysts is determined by the properties of acid carrier, metal properties and the synergistic of metal and acid carrier. The acid sites of zeolites provide isomerization function and metal sites provide hydrogenation/dehydrogenase functions [3; 4]. As a metal center, Pt has good hydrogenation/dehydrogenation performance, which can rapidly saturate olefins and avoid coking and capping acid centers. [PERSON] [5] et al. Studied the performance of Pt supported SAPO series and ZSM-5, ZSM-22 and ZSM-23 catalysts in n-octane hydroisomerization. The results showed that ZSM-23, one-dimensional mesoporous zeolite, had high selectivity for isomersand could effectively reduce cracking. However, many studies [6; 7; 8] have confirmed that if the content of Pt is high enough, the rearrangement of C-C bonds at acid sites is the rate-determining step of this reaction scheme. Hence, the performance of zeolite catalysts is closely related to the acid sites; however, the acidic characteristics of zeolites originate from the siting position and distribution of framework Al, which depends on the conditions of zeolite synthesis [9]. [PERSON] et al. [10] studied the aging stage of a type (LTA) zeolite at the early stage of crystallization, and found that when the primary gel was heated to 96 \({}^{\circ}\)C, Al(OH)\({}_{4}\)\({}^{-}\) in the liquid phase almost entirely condensed with silicic acid ions to form a secondary gel for relatively tight structure. At this time, the solid content increased and the average particle size became smaller. The importance of solution (gel) chemistry for the specific zeolites properties has long been recognized [11; 12]. However, [PERSON] et al. [13; 14] found that the addition of oxygen-containing anions can significantly enhance the nucleation and crystallization during the synthesis of the zeolites. These anions play a catalytic role in nucleation during crystallization. [PERSON] [15] reported the NO\({}_{3}\)- anion provided a consistently more alkaline environment than the SO\({}_{4}\)\({}^{2-}\), which affected the morphology, pore size distribution and catalytic activity of ZSM-5. Thus, it is speculated that different aluminum sources can be used to introduce different anions into the reaction gel system, which will affect the physical and chemical properties of zeolites, such as size, morphology and acid properties. In past studies, heteroatoms were introduced into zeolite framework [16] and promoter [17] were added into the catalyst to improve the isomerization performance of ZSM-23. [PERSON] et al. [18] synthesized a series of Fe-substituted ZSM-23 samples with higher \(n\)-hexadecane isomerization selectivity. B [19] and Mg [17] have also been introduced into ZSM-23 zeolite to reduce the content of B acids and exhibited high isomerization performance. In general, the heteroatoms introduced were easy to come off the zeolite framework showed low catalytic activity in these reactions. While, ZSM-23 was synthesized by dual structure directing agents for n-hexadecane isomerization [20], and its reactive activity was also lower than that of the zeolite synthesized with pyrrolidine as structure directing agents.