One-step hydrothermal synthesis of Fe single atom doped 1T-MoS₂ nanosheets for high-performance seawater hydrogen production

In the pursuit of sustainable and clean energy sources, the development of efficient electrocatalysts for hydrogen evolution reaction has gained significant attention. In this work, we synthesized single-atom Fe-doped 1T MoS₂ (sFe-1T/MoS₂) nanosheets using a one-step hydrothermal method, harnessing the synergistic effects of iron-intercalation to enhance hydrogen production through an abundance of active sites. Notably, 10 at.% sFe-1T/MoS₂ exhibited excellent hydrogen evolution reaction performance with a low onset potential of 190 mV and a Tafel slope of 55 mV/dec in acidic solution. High performance was also achieved in alkaline solutions. Additionally, these catalysts demonstrated excellent efficiency in seawater splitting. This work not only offers a cost-effective and scalable method for producing high-quality electrocatalysts but also sets a precedent for the application of this technology across various catalytic systems, marking a significant advancement in clean energy research.