氬氣測定多種沸石的高精度等溫吸附線 K. Nakai*, J. Sonoda, M. Yoshida, M. Hakuman and H. Naono 日本拜耳公司BEL Japan, Inc., 1-9-1 Haradanaka, Toyonaka-shi, Osaka, 561-0807, Japan. E-mail: kazu@nippon-bel.co.jp 簡介 本實(shí)驗(yàn)檢測了兩種不同硅烷醇成分的硅土和兩種不同氧化鋁（質(zhì)子）成分的MFI沸石的氬氣等溫吸附（液氬87.3K）和氮?dú)獾葴匚剑ㄒ旱?7.4K）硅烷醇或質(zhì)子含量變化對氮?dú)馕接酗@著影響，但對氬氣吸附的影響非常小我們在相對壓力p/po=1070.99的范圍內(nèi)對七種不同微孔大小的沸石進(jìn)行了氬氣的吸附測定這七種沸石分別是：MFI (ZSM-5)MTW (ZSM-12)AFI (SSZ-24)AFI (AlPO-5)VFI (VPI-5) [A組] 以及LTA (A型-Ca) FAU (Y型) [B組]A組沸石的微孔通道不含籠結(jié)構(gòu)，而B組有籠結(jié)構(gòu)和窗口效應(yīng)研究發(fā)現(xiàn)：A組沸石氬氣原子的Polanyi吸附勢只與孔通道尺寸密切相關(guān)，而B組沸石氬氣原子吸附勢與籠尺寸和孔通道大小都相關(guān) Prior to gas adsorption measurement, the zeolite samples were pretreated in vacuo at 623 K for 10 h. The adsorption isotherms of Ar at 87.3 K (boi領(lǐng) point of liquid argon) and of N2 at 77.4 K (boi領(lǐng) point of liquid nitrogen) were measured by BELSORP-max, which has three pressure transducers of 0.0133 kPa, 1.33 kPa and 133 kPa in full scale. From Zeolites to Porous MOF Materials the 40th Anniversary of International Zeol ite Conf erenc e 選自從沸石到多孔MOF材料 第40屆國際沸石大會 R. Xu徐如人, Z. Gao,高滋 J. Chen and W. Yan閆文付 (Editors)等 . 2007 Elsevier B.V. All rights reserved. MicrotracBEL全自動三站比表面和孔隙分布儀BELSORP-Max