Molybdenum trisulfide is an acid soluble and moderately water soluble metal sulfate. This form of Mo is useful for a number of applications including water treatment, chemical catalysts, and fuel cells.

The thermal decomposition of molybdenum trisulfide on heating in air is a complex and kinetically regulated process which yields amorphous and crystalline disulfides as well as trioxide. The synthesis of the amorphous and crystalline forms is controlled by the temperature of the reaction and the amount of the sulfide reagent.

Computational investigations on the hydrogen evolution reaction (HER) catalysis of molybdenum trisulfide reveal that the three key parameters (exchange current density, Tafel slope, and stability) are primarily determined by the undercoordinated sites present in the crystal lattice. These sites are formed mainly through interstitial hydrides in the MoS2 layered structure.

Electrocatalytic hydrogen evolution by Cu2MoS4 as a ternary sulfide under aqueous buffered pH conditions

A highly crystalline layered tertiary sulfide copper-molybdenum-sulfide (Cu2MoS4) was prepared via precipitation from CuI and [MoS4]2- precursors in aqueous solution and over a wide pH range from 0 to 7. This Cu2MoS4 exhibits excellent HER activity with an overvoltage requirement of only 135 mV and a very low apparent exchange current density of 0.040 mA cm-2, irrespective of the pH value.

Hydrogen Evolution by Graphene/Molybdenum Disulfide Nanosheets

The molybdenum disulfide is the principal mineral ore of molybdenum and is widely used as a lubricant material. Molybdenum disulfide is renowned for its low coefficient of friction, film-forming structure, effective lubricating properties, and robust affinity for metallic surfaces.

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