《Table 1The SiO2/Al2O3 ratios and Na2O/Al2O3 ratios obtained by XRF, 29Si‐NMR and ICP, and OSDA cont

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《以胆碱为绿色无毒有机结构导向剂合成高硅Y型分子筛（英文）》

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a The molar ratio of carbon to nitrogen calculated by elemental analysis.

The N2 adsorption‐desorption isotherms of calcined and as‐synthesized samples are respectively shown in Fig.2A and Fig.2B.Calcined samples ChCl‐Y and ChOH‐Y exhibit a typical type‐I adsorption‐desorption isotherm，indicating that they are mainly consisted of very uniform micropores.The BET specific surface area，t‐plot micropore area and pore volume of the samples are listed in Table S1.The BET specific surface area of the calcined samples ChCl‐Y and ChOH‐Y are 735.2 and 730.7m2/g，respectively，which are slightly larger than that（694.1m2/g）of Na‐Y.The t‐plot micropore area of ChCl‐Y and ChOH‐Y are 679.0 and 675.9 m2/g，which indicates the presence of abundant micropores in the synthetic samples Ch Cl‐Y and Ch OH‐Y.The large BET specific surface area and uniform mi‐cropore property demonstrated that the use of choline choride and choline hydroxide is helpful to the formation of micropore structure.