Syntheses of Ni3S2, Co9S8, and ZnS by the decomposition of diethyldithiocarbamate complexes

Nonprecious metal catalysts for the molecular oxygen‐reduction reaction

“…For example, polycrystalline compounds Ni 3 S 2 and Co 9 S 8 were prepared from the decomposition of the corresponding diethyldithiocarbamate complexes under pure H 2 S or H 2 /H 2 S mixed atmosphere at different temperature via a temperatureprogrammed reaction, i.e. 200 °C for N 3 S 2 and 250 °C for Co 9 S 8 in a pure H 2 S atmosphere [62]. The synthesis method can produce single-phase products, however, it also produces undesirable carbon impurity, compared to the conversion of the sulfate salts to the sulfides in a H 2 /H 2 S atmosphere.…”

A solvothermal decomposition process for fabrication and particle sizes control of Bi2S3 nanowires

“…8 Conventionally, Bi 2 S 3 can be prepared by direct reaction of bismuth and sulfur vapor in a quartz vessel at high temperature. 7,17,18 Several syntheses have been reported with thiolato, [19][20][21] dithiocarbamate, 3,22 and thiourea complexes; 23,24 however, this route needs to be processed in a stream of H 2 S or H 2 /H 2 S at high temperature. 10 -16 Thermal degradation of metal complexes with sulfurcontaining ligands seems to be an attractive method for the synthesis of metal sulfides.…”

A new continuous two-step molecular precursor route to rare-earth oxysulfides Ln2O2S

“…The precursors used in these cases involve thiourea [29,36], thiosemicarbazide [29,36], thiolates [33,41], xanthates [32,37], thiophosphate [31] or the widely used dithiocarbamates [27,28,30,32,34,35,[38][39][40]. In the case of rare earth elements, a major difficulty arises from their poor affinity for sulfur.…”

“…Molecular precursors pathways have also been largely described for the preparation of metal sulfides, such as CdS [28,29], ZnS [27,28,30], Sb 2 S 3 [31], Ni 3 S 2 [27,32], and Bi 2 S 3 [31,[33][34][35][36][37][38][39][40][41], among others. The precursors used in these cases involve thiourea [29,36], thiosemicarbazide [29,36], thiolates [33,41], xanthates [32,37], thiophosphate [31] or the widely used dithiocarbamates [27,28,30,32,34,35,[38][39][40].…”