We present the first systematic observation of scaling of thermal hysteresis with the temperature scanning rate around an abrupt thermodynamic transition in correlated electron systems. We show...

V2O3 samples were successfully prepared using [VOSO4·xH2O] as the starting material by a template-free hydrothermal method with the addition of KBrO3. The prepared samples were characterized by...

X-ray diffraction analysis (XRD) showed the formation of rhombohedral V2O3 structure as major phase, while rhombohedral Ni3S2 and tetragonal VO2 are existed as minor phases.

2024年11月10日 · Highly crystalline VBO 3 /V 2 O 3 heterogeneous materials have been synthesized in vacuum quartz tubes. The VBO 3 /V 2 O 3 @C anode material has an initial discharge specific capacity of 927 mAh∙g –1 and good cycle stability. Ex-situ XRD and XPS measurements reveal the transformation and (de)intercalation reaction mechanisms.

2013年9月1日 · Phase pure V2 O 3 micro-crystals with a hexagonal dipyramid morphology were fabricated for the first time via a facile one-step hydrothermal method. The crystals were characterized by X-ray diffraction (XRD), scanning electron microscopy (SEM), transmission electron microscopy (TEM) and differential scanning calorimetry (DSC).

2018年7月21日 · The prepared samples were characterized by X-ray diffraction (XRD), scanning electron microscopy (SEM), Fourier transform infrared spectroscopy (FTIR) and cyclic voltammetry (CV). The XRD result shows the rhombohedral structure for V2O3 with an average crystallite size in the range of 22 nm.

由于这些化合物中发生金属-绝缘体转变，基于钒 (III) 和 (IV) 氧化物的材料和器件引起了越来越多的科学关注。 在本文中，我们使用现代实验室设备观察了两种氧化物的转变。 以 2 °C 为步长，精确研究了晶体结构随温度变化的变化。 使用差示扫描量热法观察转变过程中的热效应。 准连续测量材料的直流电导率作为温度的函数。 所有实验都是一致的，并且显示两种钒氧化物中金属-绝缘体转变具有相当大的滞后。

2021年9月10日 · Powder X-ray diffraction (XRD) in the 10–70 ° 2θ range with a step size of 0.2 ° was performed on a Bruker AXS D8 Advance Eco diffractometer using CuKα radiation. The morphology of the samples was investigated by a ZEISS Leo 1530 scanning electron microscope (SEM) and a JEOL JEM 2100 transmission electron microscope (TEM).

The DataSet contains the XRD patterns of VO2 and V2O3 thin films obtained by the sol-gel method. The information about sol synthesis is described in the Journal of Nanomaterials. The thin films with different thicknesses (3-9 AsP layers) were deposited on a silicon substrate and were annealing at 500°C under an argon atmosphere.

The morphology, structure, and composition of the obtained V2O3/C composites were investigated by X-ray diffraction, Raman spectroscopy, scanning and transmission electron microscopies,...