Skipper, N;
Taylor, D;
Cox, S;
Michaelides, A;
Youngs, T;
Soper, A;
Totton, T;
... Arjmandi, M; + view all
(2018)
Formation of methane clathrate hydrates at elevated pressures and in the presence of nanoparticles.
Journal of the American Chemical Society
, 140
(9)
pp. 3277-3284.
10.1021/jacs.7b12050.
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Abstract
Natural gas hydrates occur widely on the ocean-bed and in permafrost regions, and have potential as an untapped energy resource. Their formation and growth, however, poses major problems for the energy sector due to their tendency to block oil and gas pipelines, whereas their melting is viewed as a potential contributor to climate change. Although recent advances have been made in understanding bulk methane hydrate formation, the effect of impurity particles, which are always present under conditions relevant to industry and the environment, remains an open question. Here we present results from neutron scattering experiments and molecular dynamics simulations that show that the formation of methane hydrate is insensitive to the addition of a wide range of impurity particles. Our analysis shows that this is due to the different chemical natures of methane and water, with methane generally excluded from the volume surrounding the nanoparticles. This has important consequences for our understanding of the mechanism of hydrate nucleation and the design of new inhibitor molecules.
| Type: | Article |
|---|---|
| Title: | Formation of methane clathrate hydrates at elevated pressures and in the presence of nanoparticles |
| Event: | 256th National Meeting and Exposition of the American-Chemical-Society (ACS) - Nanoscience, Nanotechnology and Beyond |
| Location: | Boston, MA |
| Dates: | 19 August 2018 - 23 August 2018 |
| Open access status: | An open access version is available from UCL Discovery |
| DOI: | 10.1021/jacs.7b12050 |
| Publisher version: | https://doi.org/10.1021/jacs.7b12050 |
| Language: | English |
| Additional information: | This work is licensed under a Creative Commons Attribution 4.0 International License. The images or other third party material in this article are included in the article’s Creative Commons license, unless indicated otherwise in the credit line; if the material is not included under the Creative Commons license, users will need to obtain permission from the license holder to reproduce the material. To view a copy of this license, visit http://creativecommons.org/licenses/by/4.0/ |
| Keywords: | Science & Technology, Physical Sciences, Chemistry, Multidisciplinary, Chemistry |
| UCL classification: | UCL UCL > Provost and Vice Provost Offices UCL > Provost and Vice Provost Offices > UCL BEAMS UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Maths and Physical Sciences UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Maths and Physical Sciences > Dept of Physics and Astronomy |
| URI: | https://discovery.ucl.ac.uk/id/eprint/10060747 |
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