Facile Solvent-Free Synthesis of Metal Thiophosphates and Their Examination as Hydrogen Evolution Electrocatalysts.

ABSTRACT: The facile solvent-free synthesis of several known metal thiophosphates was accomplished by a chemical exchange reaction between anhydrous metal chlorides and elemental phosphorus with sulfur, or combinations of phosphorus with molecular P₂S₅ at moderate 500 °C temperatures. The crystalline products obtained from this synthetic approach include MPS₃ (M = Fe, Co, Ni) and Cu₃PS₄. The successful reactions benefit from thermochemically favorable PCl₃ elimination. This solvent-free route performed at moderate temperatures leads to mixed anion products with complex heteroatomic anions, such as P₂S₆^4-. The MPS₃ phases are thermally metastable relative to the thermodynamically preferred se

SUBMITTER: Coleman N 

PROVIDER: S-EPMC9413033 | biostudies-literature | 2022 Aug

REPOSITORIES: biostudies-literature