Hydrogen is the potential energy carrier which can be produced by electrocatalytic water splitting. Platinum (Pt) and Platinum-based electrocatalysts exhibit zero Gibb’s free energy (∆GH) for hydrogen adsorption making them most potential material candidates for electrocatalytic hydrogen generation and fuel cells applications. MoS2 is the most earth abundant material that is treated as an economic alternative to Pt.
We have synthesized nanosheets decorated spherical MoS2 using economic hydrothermal methodology. Optimized tuning of nanostructured 1T:2H phase of MoS2 has been attempted to achieve (i) electrochemically stable 2H phase and (ii) high electrical conductivity similar to 1T phase. Achievement of enhanced active sites density via nanosheets based network throughout the spherical surface is another salient feature of the work. We have synthesized nanosheets decorated spherical electrocatalyst of high efficiency that yields lowest - charge transfer resistance (5 Ω), onset potential (90 mV) and Tafel slope (40 mV/dec).

Nanosheet Decorated Spherical MoS2 Electrocatalyst for Water-Splitting Applications

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