~(23)Na Spin-Lattice Relaxation Measurements in Dehydrated Na-X Zeolite

Mutsuo Igarashi; Noriaki Okubo; Shuichi Hashimoto; Ryozo Yoshizaki; Deok Joon Cha

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~(23)Na Spin-Lattice Relaxation Measurements in Dehydrated Na-X Zeolite

机译：脱水Na-X沸石中的〜（23）Na自旋晶格弛豫测量

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The spin-lattice relaxation time T_1 of ~(23)Na-NMR in a dehydrated Na-X zeolite has been measured from 20 to 300 K. The recovery curve is not single-exponential at all measured temperatures and T_1~(-1) increases with the square of temperature around room temperature. The results are analyzed by assuming non-equivalent sites and by applying the theory of the Raman process based on covalency.

机译：在脱水的Na-X沸石中测得〜（23）Na-NMR的自旋晶格弛豫时间T_1为20至300K。在所有测得的温度和T_1〜（-1）下，回收率曲线都不是单指数的在室温附近随温度的平方增加。通过假设非等价位点并应用基于共价性的拉曼过程理论来分析结果。

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来源
《Zeitschrift fur Naturforschung. A, A journal of physical sciences》 |1996年第6期|p.657-661|共5页
作者
Mutsuo Igarashi; Noriaki Okubo; Shuichi Hashimoto; Ryozo Yoshizaki; Deok Joon Cha;
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作者单位

Department of Applied Physics, Gunma College of Technology, Gunma 371, Japan;

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原文格式 PDF
正文语种 eng
中图分类物理学;
关键词
dehydrated Na-X zeolite; ~(23)Na-NMR; spin-lattice relaxation; raman process; nonequivalent sites;

机译：脱水Na-X沸石;〜（23）Na-NMR;自旋晶格弛豫;拉曼过程;非等价位;

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2. Deuteron spin-lattice relaxation in the presence of an activation energy distribution: Application to methanols in zeolite NaX [J] . G. Stoch, E. E. Ylinen, A. Birczynski, Solid State Nuclear Magnetic Resonance . 2013,第Null期

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3. Characterization of Dispersed Heteropoly Acid on Mesoporous Zeolite Using Solid-State ~(31)P NMR Spin-Lattice Relaxation [J] . Kake Zhu, Jianzhi Hu, Xiaoyan She, Journal of the American Chemical Society . 2009,第28期

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4. A NEW ASSIGNMENT OF THE SIGNALS IN 23NA DOR NMR TO SODIUM SITES IN DEHYDRATED NaY ZEOLITE [C] . Harry A. M. Verhulst, Wira J. J. Welters, Gert Vorbeck, International Zeolite Conference . 1995

机译：将23na Dor NMR中的信号在脱水Ny沸石中钠位点的新分配
5. SODIUM-23 QUADRUPOLE RELAXATION MEASUREMENTS BY COMPUTER-CONTROLLED DOUBLE NUCLEAR MAGNETIC RESONANCE SPECTROMETER. [D] . SPENCER, PAUL ANTHONY. 1976

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6. Oxygen transport parameter in membranes as deduced by saturation recovery measurements of spin-lattice relaxation times of spin labels. [O] . A Kusumi, W K Subczynski, J S Hyde 2016

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~(23)Na Spin-Lattice Relaxation Measurements in Dehydrated Na-X Zeolite

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