Abstract The adsorption of CO2 on Ba0.5Sr0.5Co0.8Fe0.2O3-d (BSCF) perovskite oxides in the absence and presence of O2 and H2O at various temperatures was investigated by temperature programmed desorption (TPD). XRD was used to characterize the phase of the samples before and after adsorption. No CO2 desorption peak was observed when CO2 was adsorbed on BSCF at room temperature. A CO2 desorpti…
Transesterification of cottonseed oil with methanol to biodiesel was investigated in various Brønsted acidic ionic liquids with an alkane sulfonic acid group. The properties, structures, and acidities of the ionic liquids were experimentally characterized and theoretically analyzed. The Brønsted acidity-activity correlation for the ionic liquids was studied. Among all these ionic liquids, 1-…