Solvothermal synthesis route to ternary chalcogenides Cu(Ag)-Pd-S

A mild route to ternary chalcogenidometalates Cu3Pd13S7 and Ag5Pd10S5 nanoc rystals is proposed in this paper. Both compounds can be directly synthesiz ed from the reaction of PdCl2, sulfur and CuCl2 or AgNO3 through solvotherm al processes in diethylamine or ethylenediamine (en) at 140-160 degrees C f or 10 h. The final products have been characterized by X-ray diffraction (X RD) patterns, transmission electron microscope (TEM) images, and X-ray phot oelectron spectra (XPS). The formation mechanism of the nanocrystalline ter nary chalcogenidometalates in the solvothermal process is also investigated . (C) 2000 Elsevier Science S.A. All rights reserved.