Control of the Morphology of Molybdenum Dioxide Nanoparticles

Abstract

Synthesis of MoO 2 nanoparticles with one-dimensional (1D) and spherical morphologies in aqueous solutions, through hydrothermal process was investigated. The materials were studied by x-ray diffraction (XRD), scanning electron microscopy (SEM), transmission electron microscopy (TEM), Infrared spectroscopy (FTIR) and thermal analysis (TG). It was found that the quantity of organic compound influenced the size and shape of the final product. The possible formation mechanism of MoO 2 microspheres and nanowires was also discussed. The conductivity of MoO 2 nanowires was explained by the presence of two protons types in the material.

MoN-decorated nitrogen doped carbon nanotubes anode with high lithium storage performance

“…The characteristics vibrations due to Mo-O (Fig. 3c) stretching appear at 448 and 670 cm -1 with a relatively strong peak due to some double bond character (Mo=O) appearing at 962 cm -1 [27][28][29]. For MoN (Fig.…”

“…N-doping of CNT provided n-type carrier concentration along with reactive sites for interfaces and high conductivity for efficient synergistically integrated composite structure. When used as anode material, the strong bonding between MoN and carboxyl groups of N-CNT along with high surface area (369 m 2 g -1 ), small particle size(20)(21)(22)(23)(24)(25)(26)(27)(28)(29)(30) nm), high dispersion and mesoporosity (6nm average pore size) unite together to extend the electrochemical kinetics of LIBs.…”

Porous MoO3@SiC hallow nanosphere composite as an efficient oxidative desulfurization catalyst

“…The FT‐ IR spectra of MoO 2 @C and MoO 3 @SiC catalysts are shown in Figure . In MoO 2 @C catalyst, the peaks at 612 and 920 cm −1 can be assigned to the Mo‐O‐Mo and Mo = O vibrations of MoO 2 nanoparticles in this catalyst, respectively . The existence of MoO 3 in MoO 3 @SiC catalyst was confirmed by the peaks at 578 and 906 cm −1 that are related to the vibration of Mo‐O‐Mo and Mo = O bonds in MoO 3.…”

“…In MoO 2 @C catalyst, the peaks at 612 and 920 cm −1 can be assigned to the Mo-O-Mo and Mo = O vibrations of MoO 2 nanoparticles in this catalyst, respectively. [37,38] Figure 3. The blue pattern shows the diffraction peaks of MoO 2 @C at 2θ = 26.1, 37.0, 41.7, 50.1, 50.8, 53.5, 60.7, 66.9, and 72.6°reflections that are attributed to the monoclinic MoO 2 (JCPDS: 86-0135).…”

Analysis of Physical, Thermal, and Structural Properties of Biofield Energy Treated Molybdenum Dioxide

“…In this process, the weight of control sample was increased by approximately 9.5% as compared to its initial weight. Naouel et al reported that the weight gain by MoO 3 sample in TGA was due to its oxidation [20] Zhang et al reported that the theoretical weight gain during oxidation of MoO 2 to MoO 3 is 12.5% [21].…”