Cox, SJ;
Taylor, DJF;
Youngs, TGA;
Soper, AK;
Totton, TS;
Chapman, RG;
Arjmandi, M;
... Michaelides, A; + view all
(2018)
Formation of Methane Hydrate in the Presence of Natural and Synthetic 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 Hydrate in the Presence of Natural and Synthetic Nanoparticles |
| Open access status: | An open access version is available from UCL Discovery |
| DOI: | 10.1021/jacs.7b12050 |
| Publisher version: | http://dx.doi.org/10.1021/jacs.7b12050 |
| Language: | English |
| Additional information: | This is an open access article published under a Creative Commons Attribution (CC-BY) License, which permits unrestricted use, distribution and reproduction in any medium, provided the author and source are cited. |
| Keywords: | Science & Technology, Physical Sciences, Chemistry, Multidisciplinary, Chemistry, MOLECULAR-DYNAMICS SIMULATIONS, GAS-HYDRATE, CO2 HYDRATE, TOMOGRAPHIC MICROSCOPY, HOMOGENEOUS NUCLEATION, AQUEOUS METHANE, SOLID-SURFACES, ICE, WATER, INTERFACE |
| UCL classification: | UCL 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/10047722 |
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