《Table 2Textural properties of the samples.》

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《"以N,N’-二甲基乙二胺为模板剂合成磷酸硅铝分子筛DNL-6及其在催化中的应用（英文）"》

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a Total surface area is determined by the BET equation.b Micropore surface area，external surface area，and volume are determined by the t-plot method.c Mesopore volume is determined from the adsorption isotherms by the BJH method.

The detailed synthesis conditions including gel composition，crystallization time，product crystalline phases，and composition are listed in Table 1.The corresponding XRD patterns of these products are shown in Fig.1.When TEOS is absent（SP-D1），Al PO4-21 with an AWO topology is the final product.The AWO phase decreases and RHO phase increases with anincrease in the amount of TEOS.Pure DNL-6 molecular sieves cannot be synthesized unless the molar ratio of TEOS/Al2O3 is1.Further，an amorphous phase appears along with DNL-6when the TEOS/Al2O3 molar ratio is greater than 1.7.Pure-phase DNL-6s synthesized at TEOS/Al2O3 ratios of 1.0，1.2，and 1.7 were denoted as L-DNL-6，M-DNL-6，and H-DNL-6，respectively.Their Si contents range from 22.4%to 36.4%.It should be noted that SAPO molecular sieves with such high Si contents are rarely reported.Upon further prolonging the crystallization time，the RHO phase gradually converts to a dense GIS phase（68 h for SP-D4 and 143 h for SP-D5），indicating the metastable characteristics of DNL-6.Meanwhile，the Si content of solid products is higher than that of M-DNL-6.