2.5.5. Thermal Analysis

Thermogravimetric analysis (TGA) was performed by a TG-STDA thermobalance (TGA/STDA851e/LF/1600 model, Mettler-Toledo, LLC, Columbus, OH, USA). The samples (~13 mg) were heated from 25 to 700 ◦C at a heating rate of 5 ◦C/min under a dynamic nitrogen atmosphere (flow rate 50 mL/min). The measurements were done in five replicates.
