Evaluation of the relative acid strength of copper supported in γ-alumina by TG and DSC

Abstract The relative acid strength of copper was evaluated by thermogravimetry (TG) and differential scanning calorimetry (DSC) methods, using n -butylamine as a molecular probe. The total acidity was calculated from TG curves whereas the relative acid strength was determined from DSC curves, using the Borchardt–Daniels kinetic model. Acidity and active sites were measured by IR spectroscopy.