Thermogravimetric analysis (TGA) curves were conducted using a TA instruments Q-650 series. Approximately 5-10 mg of powdered samples were placed in open 90 µL alumina crucibles. The samples were left to equilibrate for 5 minutes at 30 ᵒC under an argon flow of 100 µL/min before the thermal treatment. A thermal heating using ramp of 10 ᵒC/min was applied between 30 and 800 ºC. Data were analysed using TA Universal Analysis software. Differential Scanning Calorimetry (DSC) curves were recorder on a NETSCH DSC 214 Polyma instrument. Approximately 5-10 mg of powdered samples were placed in a sealed 70 µL aluminium crucibles were used with a hole punctured in the lid to prevent pressure build-up. An empty aluminium pan was used as a reference. Background corrections were performed using the same heating cycle on an empty aluminium crucible. All data analysis was performed using the Netzsch Proteus® software package.