Surface modification of mesostructured cellular foam to enhance hydrogen storage in binary THF/H₂ clathrate hydrate.

ABSTRACT: This study introduces solid-state tuning of a mesostructured cellular foam (MCF) to enhance hydrogen (H₂) storage in clathrate hydrates. Grafting of promoter-like molecules (e.g., tetrahydrofuran) at the internal surface of the MCF resulted in a substantial improvement in the kinetics of formation of binary H₂-THF clathrate hydrate. Identification of the confined hydrate as sII clathrate hydrate and enclathration of H₂ in its small cages was performed using XRD and high-pressure ¹H NMR spectroscopy respectively. Experimental findings show that modified MCF materials exhibit a ∼1.3 times higher H₂ storage capacity as compared to non-modified MCF under the same conditions (7 MPa, 265 K, 100% pore volume saturation with a 5.56 mol%

SUBMITTER: Kummamuru NB 

PROVIDER: S-EPMC11197926 | biostudies-literature | 2024 Jun

REPOSITORIES: biostudies-literature