One-Step Hydrothermal Preparation of 1D α-MoO3 Nanobelt Electrode Material for Supercapacitor

1D α $\alpha$ -MoO 3 nanobelts were prepared using ammonium heptamolybdate tetrahydrate [(NH 4 ) 6 ${}_4{)}_6$ Mo 7 O 2 4 ⋅ 4 ${}_{24}\cdot 4$ H 2 O] as raw material by one-step hydrothermal method without template or guide agent at 180 ∘ C. The layered α $\alpha$ -MoO 3 nanobelt electrode has favorable electrochemical performance, and displays a fairly high specific capacitance, which can be up to 445 $$ F/g at a current density of 0.5 $$ A/g.