Electron energy loss spectra in conjunction with near-edge fine structures of purely stoichiometric niobium monoxide (NbO) and niobium pentoxide (Nb2O5) reference materials were recorded. The structures of the niobium oxide reference materials were checked by selected area electron diffraction to ensure a proper assignment of the fine structures. NbO and Nb2O5 show clearly different energy loss...

To promote the commercial application of sodium ion batteries (SIBs), new high-stability and high-capacity anode materials are needed. Metal oxides show great promise, but significant issues relating to their low electrical conductivity unstable structure during charge storage must be resolved. Herein, a composite consisting pseudohexagonal Nb2O5 (TT-Nb2O5) nanoparticles strongly anchored carbo...

This study focuses on synthesizing Niobium pentoxide (Nb2O5) thin films silicon wafers and quartz substrates using DC reactive magnetron sputtering for NO2 gas sensors. The undergo annealing in ambient air at 800 °C 1 hr. Various characterization techniques, including X-ray diffraction (XRD), atomic force microscopy (AFM), energy-dispersive spectroscopy (EDS), Hall effect measurements, sensitiv...

Orthorhombic niobium pentoxide (T-Nb2O5) is known to be an effective anode material for Li-ion batteries (LIBs) with very high rate capability, but the other Nb2O5 polymorphs and non-crystalline phases have lacked thorough exploration. A simple hydrothermal mechanism used produce anisotropically crystalline ‘as-synthesised material’, which has not previously been characterised electrochemically...

ASSESSMENT OF THE ELECTRONIC STRUCTURE MONOCLINIC PHASE NIOBIUM OXIDE BASED ON USE DIFFERENT DENSITY FUNCTIONALS. Niobium oxides, Nb2O5, are considered semiconductor materials with very attractive physical and chemical properties for applications in many areas, such as catalysis, sensors, medical, aerospace, etc. Especially, the characterization of Nb2O5-based nanostructures monoclinic structur...

Supported Au nanoparticles showed efficient catalytic performance for the ring rearrangement of 5-hydroxymethylfurfural (HMF) to a cyclopentanone derivative, 3-hydroxymethylcyclopentanone (HCPN), by taking advantage of the selective hydrogenation on Au nanoparticles and the Lewis acid catalysis of metal oxide supports. Among various metal oxide supported Au catalysts, the highest yield of HCPN ...

Due to the significance of Nb2O5 as a promising industrial and biomedical material importance Raman analyses identify nanostructural molecular responsivity for various applications, this study aims investigate bands that emerged under impact scattering phenomenon. Besides other advantages, can provide further investigation polycrystalline phases supporting XRD analyses. A pulsed laser was selec...