Answers are grounded in this paper and cite their sources.
Nonporous titanium(IV) clusters supported by carboxylate ligands show selective sorption of carbon dioxide even in the amorphous phase. A ring-type Ti8 cluster with a permanent inner pore also adsorbs gases, but not selectively.
No takes yet. Share an insight, caveat, or question.
Hong et al. (2013) studied this question.
Synapse has enriched 5 related papers. Consider them for comparative context: