MoO3 fibers and belts: Molten salt synthesis, characterization and optical properties
Source abstract
Abstract
Abstract Molybdenum trioxide (MoO 3 ) powders with fiber and belt-like morphologies were synthesized through a molten salt method using NH 4 NO 3 as a molten salt. The prepared samples were characterized by X-ray diffraction (XRD), scanning electron microscopy (SEM), thermogravimetric and differential thermal analysis (TG–DTA), Fourier transform infrared spectroscopy (FTIR) and ultraviolet–visible absorption spectroscopy. The results revealed that the amount of NH 4 NO 3 and temperature had an important effect on controlling the morphology of the obtained molybdates. With increasing the temperature from 550 °C to 750 °C, and also changing the MoO 3 /NH 4 NO 3 molar ratio from 1:4 to 1:7, the width of the particles increases and the fiber-like morphology changes to the belt one. Furthermore, the band gap energy of MoO 3 decreased from 2.76 eV to 2.71 eV as the temperature increased from 550 °C to 750 °C.
Source: openaire · Quality: candidate unverified · Source record ↗
Research context
OpenAlex topics: Transition Metal Oxide Nanomaterials · Gas Sensing Nanomaterials and Sensors · Conducting polymers and applications
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
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