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The very unique style of the N2 isotherms (Fig. 2) is attributed to the combination of Type I,which is characteristic of microporous materials at very low relative pressure, and Type IV, which is characteristic of mesoporous materials with Type H2 hysteresis at higher relative pressure. Type I £¬Type IV £¬Type H2 ÊÇʲôÒâ˼°¡ ͼ¶þÖÐҲûÓбê³ö°¡ |
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