Akademik Veri Yönetim Sistemi
Electrochimica Acta, cilt.546, 2026 (SCI-Expanded, Scopus)
The research focuses on assessing Mo and W containing catalysts in terms of both photocatalytic hydrogen evolution reaction (HER) and electrocatalytic overall water splitting process. Special attention is given to the structural and electronic parameters of these materials, which contribute to their catalytic efficiency. The results indicated that the S-containing molybdenum-based catalysts heat-treated at 320 °C ( MoS-A320 ) shows the highest photocatalytic and electrocatalytic activities among all structures. The hydrogen evolution rate of 1.16 mmol h-1 g -1 with good stability indicate its usability in the photocatalytic HER. Electrocatalytic HER measurements indicated that MoS-A320 revealed 73 mV overpotential at 10 mA cm⁻² with a Tafel slope of 58 mV dec⁻¹. The electrode preserved 93% of its activity during 12 h chronoamperometric testing, closely matching the durability of Pt catalysts. Observation of considerably high oxygen evolution reaction (OER) performances of MoS-A320 indicates its bifunctionality and usability at both anode and cathode of the water electrolyzers. The enhanced photocatalytic activities of MoS-A-320 are explained by the optical and morphological traits which are tailored with the annealing temperature. Additionally enhanced conductivity and high surface area of this structure are the fundamental features for the higher bifunctional electrocatalytic activity. This study provides insights into the design of efficient catalysts for renewable energy conversion and environmental sustainability.