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Hydrogen Clusters in Clathrate Hydrate
Abstract
High-pressure Raman, infrared, x-ray, and neutron studies show that H 2 and H 2 O mixtures crystallize into the sII clathrate structure with an approximate H 2 /H 2 O molar ratio of 1:2. The clathrate cages are multiply occupied, with a cluster of two H 2 molecules in the small cage and four in the large cage. Substantial softening and splitting of hydrogen vibrons indicate increased intermolecular interactions. The quenched clathrate is stable up to 145 kelvin at ambient pressure. Retention of hydrogen at such high temperatures could help its condensation in planetary nebulae and may play a key role in the evolution of icy bodies.
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Citations
Cited by
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Nishihara, H., & Kyotani, T. (2012) · Advanced Materials · doi:10.1002/adma.201201715 · Cited by 745
Hydrogen storage: beyond conventional methods
Dalebrook, A. F., Gan, W., Grasemann, M., Moret, S., & Laurenczy, G. (2013) · Chemical Communications · doi:10.1039/c3cc43836h · Cited by 503
The Chemical Imagination at Work in Very Tight Places
Grochala, W., Hoffmann, R., Feng, J., & Ashcroft, N. W. (2007) · Angewandte Chemie International Edition · doi:10.1002/anie.200602485 · Cited by 470
Hydrophobic amino acids as a new class of kinetic inhibitors for gas hydrate formation
Sa, J.-H., Kwak, G.-H., Lee, B. R., Park, D.-H., Han, K., & Lee, K.-H. (2013) · Scientific Reports · doi:10.1038/srep02428 · Cited by 256
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Metadata
- Authors
- Mao, W. L., Mao, H.-K., Goncharov, A. F., Struzhkin, V. V., Guo, Q., Hu, J., Shu, J., Hemley, R. J., Somayazulu, M., & Zhao, Y.
- Venue
- Science
- Published
- 2002-09-27
- Volume
- 297
- Issue
- 5590
- Pages
- 2247-2249
- ISSN
- 0036-8075 (ISSN-L)
- 1095-9203
- OpenAlex
- W2129734399
- Cited by
- 943
- References
- 0
- FWCI
- 12.18
- Type
- journal article
- Language
- en
- Open access
- closed
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- Mao, W. L., Mao, H.-K., Goncharov, A. F., Struzhkin, V. V., Guo, Q., Hu, J., Shu, J., Hemley, R. J., Somayazulu, M., & Zhao, Y. (2002). Hydrogen Clusters in Clathrate Hydrate. Science. https://doi.org/10.1126/science.1075394
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