Rapid and efficient hydrogen clathrate hydrate formation in confined nanospace

Judit Farrando-Perez, Rafael Balderas-Xicohtencatl, Yongqiang Cheng, Luke Daemen, Carlos Cuadrado-Collados, Manuel Martinez-Escandell, Anibal J. Ramirez-Cuesta () and Joaquin Silvestre-Albero ()
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Judit Farrando-Perez: Laboratorio de Materiales Avanzados, Departamento de Química Inorgánica-Instituto Universitario de Materiales, Universidad de Alicante
Rafael Balderas-Xicohtencatl: Spallation Neutron Source, Oak Ridge National Laboratory
Yongqiang Cheng: Spallation Neutron Source, Oak Ridge National Laboratory
Luke Daemen: Spallation Neutron Source, Oak Ridge National Laboratory
Carlos Cuadrado-Collados: Laboratorio de Materiales Avanzados, Departamento de Química Inorgánica-Instituto Universitario de Materiales, Universidad de Alicante
Manuel Martinez-Escandell: Laboratorio de Materiales Avanzados, Departamento de Química Inorgánica-Instituto Universitario de Materiales, Universidad de Alicante
Anibal J. Ramirez-Cuesta: Spallation Neutron Source, Oak Ridge National Laboratory
Joaquin Silvestre-Albero: Laboratorio de Materiales Avanzados, Departamento de Química Inorgánica-Instituto Universitario de Materiales, Universidad de Alicante

Nature Communications, 2022, vol. 13, issue 1, 1-6

Abstract: Abstract Clathrate hydrates are crystalline solids characterized by their ability to accommodate large quantities of guest molecules. Although CH4 and CO2 are the traditional guests found in natural systems, incorporating smaller molecules (e.g., H2) is challenging due to the need to apply higher pressures to stabilize the hydrogen-bonded network. Another critical limitation of hydrates is the slow nucleation and growth kinetics. Here, we show that specially designed activated carbon materials can surpass these obstacles by acting as nanoreactors promoting the nucleation and growth of H2 hydrates. The confinement effects in the inner cavities promote the massive growth of hydrogen hydrates at moderate temperatures, using pure water, with extremely fast kinetics and much lower pressures than the bulk system.

Date: 2022
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DOI: 10.1038/s41467-022-33674-2

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