mill to obtain homogeneous samples for analysis.
TGA measurements were performed using a TGA851e (METTLER
TOLEDO, STARe SW 9.30) and 70 L aluminum oxide pans.
The measurements were done under nitrogen and/or oxygen (quality
5.0) atmosphere and a gas flow of 50 mL/min for both gases. The
heating rates were varied between 5 ◦C/min and 50 ◦C/min, and the
dynamic steps were interrupted at different temperatures for set
periods.