Publication date: 15th December 2025
The hydrogen evolution reaction (HER) is being broadly explored and advanced due to its use as a favorable substitute for fossil fuels to harvest renewable energy. The advancement in HER is to introduce an efficient electro-catalyst apart from platinum-based benchmark catalyst, with lower commercial cost. Transition metal sulfides (TMS) have been a fascinating rising consideration as promising catalysts for the electrochemical conversion of energy. The alteration of the electronic configuration of TMS by means of the integration of metal heteroatoms, followed by the preparation of composites utilizing nanosheets of MXene noted for their elevated electrochemical surface area, results in a considerable augmentation of active catalytic sites and boost in the electrocatalytic performance of HER. A heterostructured noble metal free electrocatalyst, Mo-doped ReS2@Ti3C2 MXene composite (MRT) was synthesized via a typical hydrothermal method. The electrocatalytic HER performance of 3-MRT composite demonstrates boosted results over non-doped ReS2@Ti3C2 MXene composite as well as pristine ReS2 and Ti3C2 MXene, delivered a current density of 10 mA cm–2 at an overpotential of 66 mV for HER and shows excellent stability for 50 hours. This study shows the importance of hetero-atom doping and exposes routes for non-noble metal-based electrocatalytic materials suitability for H2 production.
The Author thanks University of Chemistry and Technology, Prague Czech Republic and and the Johannes Amos Comenius Programme, European Structural and Investment Funds, project CHEMFELLS VII (no.CZ.02.01.01/00/22_010/0008809).
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