NiO of octThe pyrolysis behavior of Ni–Ca/D152 was determined by thermogravimetric analysis (TGA) and differential thermal analysis (DTA) using a Gen- eral V 2.2A Dupont
9900 analyzer. The heating rate was set at 5 C/min. The weight loss and thermal change were recorded in the range of 25–800 C. The tail gas of pyrolysis from 100 C to 500 C was determined by a gas chro- matograph (GC) (SP-2305) equipped with a thermal conductivity detector and a capillary column (stationary phase GD * 502, length 3 m).anhedral morphology was prepared according to the procedure mentioned in previous study