《Table 1Gel compositions and resultant products of hydrothermal syntheses.》

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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 The crystallization conditions are 200°C and 12h.b The crystallization time is 68 h for SP-D4 and 143 h for SP-D5.

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.