Regulation of morphology and structure of vanadium dioxide via a hydrothermal method for optimizing performances

Cheng, Youliang; Zhang, Yue; Fang, Changqing; Chen, Jing; Han, Hanzhi; Du, Lv

doi:10.1016/j.ceramint.2022.09.102

Cited by 7 publications

(1 citation statement)

References 52 publications

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“…When the environment changes, such as temperature, pressure, light, or magnetic field, the outer d electrons could be converted to each other under the two states of localization and public ownership. [6] This phase transition brings about great changes in the optical, electrical, magnetic, and blood properties of VO 2 [7][8][9] . By taking advantage of this change, we can apply VO 2 to vanadium dioxide, mainly in various aspects such as smart windows, [10,11] electrical switches, [12] microsolid engines, [13] and room temperature gas sensors.…”

Section: Introductionmentioning

confidence: 99%

Microwave Hydrothermal Preparation of VO₂

Lu,

Li,

Wang

et al. 2024

Physica Status Solidi (a)

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As a thermal phase transition material, VO2 is famous for its phase transition performance. When the temperature is lower than the phase transition temperature, VO2 behaves as a semiconductor with high infrared transmittance. When the temperature exceeds the phase transition temperature, VO2 exhibits a metallic state and has a high refractive index for infrared. Regulation of phase transition temperature is key to the application of VO2. In this article, microwave hydrothermal is used to prepare VO2. H+ concentration, microwave power, annealing temperature, and annealing time are used as variable conditions to find the best preparation conditions. The preparation of samples is studied by X‐ray diffractometer, scanning electron microscope, and differential scanning calorimeter. After comparative research, the optimum preparation process of vanadium dioxide by microwave hydrothermal method is found. In addition, by varying the acidic conditions and microwave power during the preparation process, the phase transition temperature of VO2 can be regulated.

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