《Table 1 Te xtural prope rtie s and re lative crystallinity of the H-ZSM-5 ze olite s with diffe re
本系列图表出处文件名:随高清版一同展现
《H-ZSM-5分子筛硅铝比对其催化的甲醇转化丙烯选择性的影响(英文)》
a:surface area was obtained by the BET method;the micropore surface area and volume were determined by the t-plot method;total pore volume w as estimated from the nitrogen adsorption at p/p0=0.99;the external surface area and mesopore volume w ere the dif
Figure 1 show s the XRD patterns of H-ZSM-5zeolites;all the synthesized samples display the typical diffraction peaks of intrinsic M FI structure.Taking HZ-5(4000)zeolite as a reference,they all havearelativecrystallinityof90%-100%,demonstrating their highly crystalline M FI structure.The textural properties determined from the nitrogen adsorption-desorption isotherms are summarized in Table 1;all the synthesized H-ZSM-5 samples have a similar BET surface area(415-430 m2/g)and micro surface area(306-341 m2/g),as w ell as almost the same pore volume(0.20 cm3/g)and micropore volume(0.15 cm3/g).In addition,as estimated by Scherrer’s method from the diffraction peak of(011)plane at 7.9°,all the as-synthesized samples have a similar crystal size of 66-73 nm(Table 1).
图表编号 | XD0039686900 严禁用于非法目的 |
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绘制时间 | 2019.01.01 |
作者 | 黄慧文、朱辉、张善鹤、张强、李春义 |
绘制单位 | 中国石油大学(华东)重质油国家重点实验室、中国石油大学(华东)重质油国家重点实验室、中国石油大学(华东)重质油国家重点实验室、中国石油大学(华东)重质油国家重点实验室、中国石油大学(华东)重质油国家重点实验室 |
更多格式 | 高清、无水印(增值服务) |
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