Mechanochemically synthesized molybdenum sulfoselenide nanocatalysts with enhanced hydrogen evolution activity
International Journal of Hydrogen Energy, cilt.244, 2026 (SCI-Expanded, Scopus)
- Yayın Türü: Makale / Tam Makale
- Cilt numarası: 244
- Basım Tarihi: 2026
- Doi Numarası: 10.1016/j.ijhydene.2026.155701
- Dergi Adı: International Journal of Hydrogen Energy
- Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus, Artic & Antarctic Regions, Chemical Abstracts Core, Chimica, Compendex, Environment Index, INSPEC
- Anahtar Kelimeler: Catalysis, Hydrogen evolution reaction, Mechanochemical synthesis, Molybdenum sulfoselenides, Transition metal dichalcogenides
- Bilecik Şeyh Edebali Üniversitesi Adresli: Evet
Özet
Herein, we report a straightforward mechanochemical synthesis route for the preparation of MoSxSe2-x nanocatalysts with controlled compositions. The method enables gram-scale production in a single batch with synthesis yields exceeding 90%. Among the synthesized compositions, MoSSe exhibits the highest HER activity, outperforming both MoS2 and MoSe2 under identical conditions and delivering 10 mA cm−2 current density at an overpotential of 131 mV accompanied by a Tafel slope of 53.1 mV dec−1. The enhanced catalytic performance can be ascribed to the combined effects of structural disorder, optimized Gibbs free energy of hydrogen adsorption (ΔGH∗) induced by the partial substitution of S with Se atoms and an increased electrochemical surface area (ECSA). These results demonstrate the effectiveness of mechanochemical synthesis for producing high-performance ternary TMD alloys and highlight MoSSe nanocatalyst as a promising candidate for sustainable hydrogen production.