Thermodynamic analysis of gate-opening carbon dioxide (CO) adsorption behavior of metal-organic frameworks (MOFs) was investigated using differential scanning calorimetry (DSC). Unlike measurements under nitrogen atmosphere, obvious exothermic and endothermic peaks were observed in DSC curves under CO flow. heating X-ray diffraction and thermogravimetric analyses under CO revealed that reversible crystal structure and weight changes occurred upon CO adsorption/desorption.
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