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

Abstract

1D [Formula: see text]-MoO3 nanobelts were prepared using ammonium heptamolybdate tetrahydrate [(NH[Formula: see text]Mo7O[Formula: see text]H2O] as raw material by one-step hydrothermal method without template or guide agent at 180∘C. The layered [Formula: see text]-MoO3 nanobelt electrode has favorable electrochemical performance, and displays a fairly high specific capacitance, which can be up to 445[Formula: see text]F/g at a current density of 0.5[Formula: see text]A/g.

Synthesis of Novel 1T/2H-MoS2 from MoO3 Nanowires with Enhanced Photocatalytic Performance

“…Tetracycline hydrochloride (TC-HCl) was obtained from Shanghai Jingchun Biochemical Technology Co., Ltd. (Shanghai, China). MoO 3 nanowires ( Figure S1 ) were prepared according to the previous report [ 32 ]. Typically, 1.0 g (NH 4 ) 6 Mo 7 O 24 ·4H 2 O was dissolved in 40.0 mL deionized water with magnetic stirring, and 6 mL of 65% HNO 3 was added subsequently.…”

“…All of the reagents were used directly after purchased. Thioacetamide (C S1) were prepared according to the previous report [32]. Typically, 1.0 g (NH 4 ) 6 Mo 7 O 24 •4H 2 O was dissolved in 40.0 mL deionized water with magnetic stirring, and 6 mL of 65% HNO 3 was added subsequently.…”

High‐performanceMoO3supercapacitor electrodes: Influence of reaction parameters on phase, microstructure, and electrochemical properties

“…The stretching vibrational modes of α‐MoO 3 are represented by Raman active peaks at 1000 (A g ), 821 (A g ), 668 (B 2g , B 3g ), and 475 cm −1 (B 2g , B 3g ). The Raman modes of orthorhombic α‐MoO 3 were observed at 381 (B 1g ), 286 (B 2g ), and 246 cm −1 (B 3g ), 28 while the Mo 4 O 11 and Mo 18 O 52 impurity phases were represented by the Raman bands at 966, 931, 912, 891, 846, 731, and 628 cm −1 for samples prepared at F/O ratios of 1:2 to 1:4. The h‐MoO 3 metastable phase is responsible for the Raman peaks at 892 and 971 cm −1 33‐35 .…”

“…Nagaraju et al used an in situ microwave irradiation technique to prepare surfactant‐free nanoparticles of MoO 3 /graphene and reported 483 F/g specific capacitance at 1 A/g current density 27 . Wen et al used a one‐step hydrothermal approach to produce 1D α‐MoO 3 nanobelt electrodes with specific capacitance of 445 F/g at 0.5 A/g current density 28 . Researchers are still working on MoO 3 , even though it is anisotropic as a result of divergent crystallographic directions when synthesized using different methods at different growth rates.…”

“…27 Wen et al used a one-step hydrothermal approach to produce 1D α-MoO 3 nanobelt electrodes with specific capacitance of 445 F/g at 0.5 A/g current density. 28 Researchers are still working on MoO 3 , even though it is anisotropic as a result of divergent crystallographic directions when synthesized using different methods at different growth rates. According to these studies, the morphological features and phase of molybdenum trioxide depend strongly on the preparation technique and process parameters employed during the synthesis process.…”