Energy Storage, cilt.8, sa.1, 2026 (ESCI, Scopus)
[Ag(btt)2(NO3)] complex was synthesized using 1,2-benzodithiol-3-thione (btt) as a ligand depending on one-pot synthesis method. FTIR, 1H-NMR, elemental analysis, and molar conductivity were used to characterize the silver complex structure. The characterization results prove that btt ligand is attached to the silver center with mono-dentate behavior through the exocyclic sulfur atom. The silver complex was utilized as a novel precursor for silver nanoparticles using ultrasound method on silver complex powder in 75 mL of deionized water and ultrasonication for 1 h at 90°C using an ultrasonic probe device with a power rating of 150 W. The solution underwent a noticeable color change to blackish-red. UV–Vis spectrum, XRD pattern, and TEM underscore resulting silver nanoparticles with a diameter range of 47–105 nm, this result from the capping agent effect of btt ligand. The hydrogen storage behavior of [Ag(btt)2(NO3)] was investigated under different pressures (10–100 bar) at 223 K. The results showed maximum storage of 3.66 wt% at an equilibrium pressure of 88 bar within only 9 s. The kinetic studies were applied on the hydrogen uptake and the results prove that hydrogen storage follows the pseudo-second-order kinetic model, as it showed a strong correlation with a value of R2 = 0.996 and K2 = 0.117 wt% s−1.