Synthesis of Pd(DDTT)2 nano-chelate by decreasing the solubility of bulk chelate organic solvent and thermolysis to PdO nanoparticles: Characterzation and factorial design

摘要

The 5, 6-Diphenyl-2,3-dihydro-asym-triazine-3-thione (DDTT) chelating agent and its Pd(DDTT)_2 chelate were synthesized. The nano-chelate was prepared by decreasing the solubility of bulk chelate in its chloroform solution by addition of ethanol. The produced nanoparticles of Pd(DDTT)_2 (mean particle size 4.4 nm) were separated by centrifugation. The thermolysis of nano-chelate at 410°C in an air oven gave very fine and porous particles of PdO with a narrow size distribution (2.0-5.7 nm) and the specific surface area (SSA) of 81.2 m~2.g~(-1). The synthesized products were characterized by XRD, TEM, DLLS, BET, TG, and elemental microanalysis. The thermolysis process was optimized using 23 factorial design.