Neon (Ne) is a noble gas with great commercial importance, therefore systems for its storage and delivery are of utmost interest. Adsorption-based technologies have great potential for gas storage and can be an interesting option for Ne applications. We have measured Ne adsorption equilibrium on the little-studied metal-organic framework Co3(ndc)3(dabco) over wide temperature and pressure ranges, 77–320 K and 0–100 bar, respectively. The determined isosteric heat of adsorption was found to be nearly independent of loading (average value of 3.6 kJ/mol). The adsorption equilibrium data show that 6.1 mol/m3 of Ne can be delivered at 1 bar and 300 K if the gas is loaded at 65 bar and 150 K. However, 18.5 mol/m3 of Ne can be delivered at the same discharge conditions if the storage temperature is decreased to 77 K. On a mass basis, Co3(ndc)3(dabco) shows similar performance for Ne storage as HKUST-1 and slightly lower on a volume basis. Exposing Co3(ndc)3(dabco) to temperatures near 400 K adversely affects its adsorption properties, in spite of the TGA results showing that the structure degrades only at 650 K.
- Cryogenic adsorption
- Gas storage