We propose a new strategy for enhancing the steam stability of Cu-BTC (HKUST-1).
Novel Imi@Cu-BTC (Imi = imidazole) composites were prepared by incorporating Imi into Cu-BTC.
Imi1/3@Cu-BTC had a high CO2 capacity of 4.4 mmol/g at 1 bar and room temperature.
Synthesis of Imi@Cu-BTC can be quickly completed within 1 min at room temperature.
Imi1/3@Cu-BTC preserved its crystal structure after being exposed to humid air for 20 days.