Materials | |
Interactions and Diffusion of Methane and Hydrogen in Microporous Structures: Nuclear Magnetic Resonance (NMR) Studies | |
Yu Ji2  Neil S. Sullivan1  Yibing Tang2  | |
[1] Department of Physics, University of Florida, Gainesville, FL 32611, USA; | |
关键词: nuclear resonance; spin-lattice relaxation; heat capacity; mesoporous structures; | |
DOI : 10.3390/ma6062464 | |
来源: mdpi | |
【 摘 要 】
Measurements of nuclear spin relaxation times over a wide temperature range have been used to determine the interaction energies and molecular dynamics of light molecular gases trapped in the cages of microporous structures. The experiments are designed so that, in the cases explored, the local excitations and the corresponding heat capacities determine the observed nuclear spin-lattice relaxation times. The results indicate well-defined excitation energies for low densities of methane and hydrogen deuteride in zeolite structures. The values obtained for methane are consistent with Monte Carlo calculations of A.V. Kumar
【 授权许可】
CC BY
© 2013 by the authors; licensee MDPI, Basel, Switzerland.
【 预 览 】
Files | Size | Format | View |
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RO202003190035362ZK.pdf | 727KB | download |