Experimental Evidence of Confined Methane Hydrate in Hydrophilic and Hydrophobic Model Carbons
| Autor: | Lars Borchardt, En Zhang, Mirian Elizabeth Casco, Volodymyr Bon, Daniel M. Többens, Simon Krause, Thomas Hauß, Nico Grimm, Dirk Wallacher, Sven Grätz |
|---|---|
| Rok vydání: | 2019 |
| Předmět: |
Materials science
Clathrate hydrate chemistry.chemical_element 02 engineering and technology Neutron scattering 010402 general chemistry 021001 nanoscience & nanotechnology 01 natural sciences Methane 0104 chemical sciences Surfaces Coatings and Films Electronic Optical and Magnetic Materials chemistry.chemical_compound General Energy Adsorption chemistry Chemical engineering Physical and Theoretical Chemistry 0210 nano-technology Hydrate Porous medium Carbon Confined space |
| Zdroj: | The Journal of Physical Chemistry C. 123:24071-24079 |
| ISSN: | 1932-7455 1932-7447 |
| DOI: | 10.1021/acs.jpcc.9b06366 |
| Popis: | Methane hydrate confined in porous materials is postulated as an alternative energy storage strategy. By applying model carbons with ordered and uniformly-sized pores and a combination of advanced in situ characterization techniques, we address fundamental questions on the formation mechanism of methane hydrate in confinement. Here we provide experimental evidence for the presence of methane hydrate inside confined spaces by in situ small- and wide-angle neutron scattering, X-ray diffraction and high pressure gas adsorption techniques. Furthermore, we demonstrate how the carbon surface chemistry tremendously impacts the methane hydrate formation kinetics and storage capacity. Our findings represent a substantial step towards transforming a naturally occurring phenomenon into a feasible energy storage technology. |
| Databáze: | OpenAIRE |
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