● PublishedFirst authorRSC · 2026
Engineering Fe₂WO₆-based heterostructures for high-performance supercapacitors: the role of V₂O₅ and g-C₃N₄ integration
Physical Chemistry Chemical Physics 28(28), 17417–17428 (2026)
@article{Rashad2026Fe2WO6, author = {Rashad, Mahnoor and Almohammedi, A. and Khan, M. I. and Mujtaba, A. and Ahmad, M. and Alzahrani, F. M. and Younas, U. and Saleem, A. and Iqbal, M. and Ul Islam, G.}, title = {Engineering Fe2WO6-based heterostructures for high-performance supercapacitors: the role of V2O5 and g-C3N4 integration}, journal = {Physical Chemistry Chemical Physics}, volume = {28}, number = {28}, pages = {17417--17428}, year = {2026}, doi = {10.1039/d6cp01274d} }
Summary of the study
Fe₂WO₆ nanoparticles were prepared hydrothermally, and Fe₂WO₆@V₂O₅ and Fe₂WO₆@g-C₃N₄ heterostructures were then built by in situ deposition. XRD and FTIR confirmed crystalline heterostructures with strong interfacial coupling, and SEM showed porous, interconnected morphologies suited to electrolyte access. BET analysis gave Fe₂WO₆@V₂O₅ the larger surface area (38.7 m² g⁻¹) and pore diameter (13.6 nm). UV–Vis showed narrowed band gaps of 2.59 eV (V₂O₅) and 2.71 eV (g-C₃N₄), indicating improved conductivity. Electrochemically, V₂O₅ integration outperformed g-C₃N₄, making Fe₂WO₆@V₂O₅ the stronger candidate electrode for next-generation supercapacitors.
Key results
355.3F g⁻¹
Specific capacitance at 0.8 A g⁻¹ (Fe₂WO₆@V₂O₅)
2.67Ω
Charge-transfer resistance
87.4%
Cycling stability
38.7m² g⁻¹
BET surface area
2.59eV
Reduced band gap