Fig. 1: Fabrication of AM-Ice and its performance in methane storage.
From: Rapid conversion of amino acid modified-ice to methane hydrate for sustainable energy storage
a The fabrication of AM-Ice involves three key steps: 1) mixing a specific amount of amino acids with water, 2) freezing the solution to form ice, and 3) grinding the bulk ice into a fine powder using a mortar and pestle. b The gas uptake (volume of gas at STP per volume of ice, v/v) of tryptophan AM-Ice with 3000 ppm tryptophan is compared with that of pure water-based (non-modified) ice. Each error bar reflects the standard deviation from three individual measurements. c The morphological evolution during hydrate formation from tryptophan AM-Ice. Both systems were tested under identical conditions of 272.7 K and 6 MPa.
