A 129Xe Nuclear Magnetic Resonance Study on Xenon Trapped in Fully Dehydrated Mesoporous Silica and Molecular Sieves 5A and 13X under Atmospheric Pressure
スポンサーリンク
概要
- 論文の詳細を見る
129Xe nuclear magnetic resonance (NMR) spectra of naturally abundant xenon trapped in fully dehydrated mesoporous materials with pore diameters of 2 nm or less were observed under atmospheric pressure in the temperature range of 168–373 K. The diameters of the three porous materials considered in this study were about 0.5, 1, and 2 nm for the molecular sieves 5A and 13X and synthesized mesoporous silica, respectively. The samples were fully dehydrated using an ultrahigh-vacuum system, and xenon gas was introduced into a precooled sample at 168 K, slightly above its boiling point. The 129Xe NMR spectra were observed while increasing the temperature, and the 129Xe shift, linewidth, and area intensity were observed at each temperature for the three samples under atmospheric pressure. The behaviors of xenon atoms in small pores observed in equilibrium states can provide important information on the relationship between the pore structure and the 129Xe chemical shift, linewidth, and signal intensity.
- Published by the Japan Society of Applied Physics through the Institute of Pure and Applied Physicsの論文
- 2009-12-25
著者
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Hayamizu Kikuko
National Chemical Laboratory For Industry
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Yamamoto Noritaka
National Institute of Advanced Industrial Science and Technology, AIST Tsukuba Central 2, Tsukuba, Ibaraki 305-8568, Japan
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Yamamoto Noritaka
National Institute of Advanced Industrial Science and Technology (AIST), 1-8-31 Midorigaoka, Ikeda, Osaka 563-8577, Japan
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Hiraga Takashi
National Institute of Advanced Industrial Science and Technology, AIST Tsukuba Central 2, Tsukuba, Ibaraki 305-8568, Japan
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Hiraga Takashi
National Institute of Advanced Industrial Science and Technology (AIST), 1-8-31 Midorigaoka, Ikeda, Osaka 563-8577, Japan
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Takada Syozo
National Institute of Advanced Industrial Science and Technology, AIST Tsukuba Central 2, Tsukuba, Ibaraki 305-8568, Japan
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Hattori Mineyuki
National Institute of Advanced Industrial Science and Technology, AIST Tsukuba Central 2, Tsukuba, Ibaraki 305-8568, Japan
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Hata Nobuhiro
National Institute of Advanced Industrial Science and Technology, AIST Tsukuba Central 2, Tsukuba, Ibaraki 305-8568, Japan
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