Fig. 2: Template decomposition process in TMCT approach.
From: Control of zeolite framework flexibility for ultra-selective carbon dioxide separation

a BET area and cage occupation in DD3R zeolite. b 13C NMR spectra; c C 1 s XPS spectra; d N 1 s XPS spectra. Fresh, as-synthesized zeolite; TMCT, overheating at 700 °C for 1 min; TMCT + CC, 700 °C for 1 min followed by 550 °C calcination for 10 h. Source data are provided as a Source Data file.