Index-matched indium tin oxide (ITO) electrodes for capacitive touch screen panels have been fabricated to improve optical transmittance and reduce the difference of reflectance (deltaR) between the etched and un-etched regions. 8.5 nm Nb2O5 and 49 nm SiO2 thin films were deposited by magnetron sputtering as index-matching layers between an ITO electrode and a glass substrate. In case of 30 nm ...

The structure and dielectric properties of the so-called “M-phase” solid solutions in the Li2O-Nb2O5-TiO2 system have been investigated. Detailed studies of the lattice parameters of these phases agree well with structure models based on intergrowths of LiNbO3 slabs with a Ti-rich corundum-type layer. The relative permittivity ranges from ~80 to ~55; microwave quality factors increase with the ...

Rapid formation of magnesium hydroxide passivation layer during hydrolysis MgH2 seriously blocks its application as a hydrogen generation material. is also susceptible to oxidation. with Nb2O5 and/or CeO2 doping has been prepared via high energy ball milling in this work the aim enhancing performance and oxidation resistance. The phase compositions, microstructure evolution properties have syst...

The Seis Lagos Carbonatite Complex hosts a lateritic deposit developed over siderite carbonatite. In the 1980’s. it was estimated to contain 2.89 Bt @ 2.81 wt% Nb2O5. Recent studies have produced new data allowing re-evaluation of area’s mineral potential. this work. geological model has been constructed and estimates grades tonnages are presented. volume cavities that occur in crust is still u...

Constructing a suitable heterojunction photocatalytic system from two materials is an efficient approach for designing extremely photocatalysts broader range of environmental, medical, and energy applications. Recently, the construction step-scheme heterostructure (hereafter called S-scheme) has received widespread attention in field due to its ability achieve photogenerated carrier separation ...

Sub-2-nm (down to one-unit cell) uniform oxide nanocrystals and highly ordered superstructures were obtained in one step using oleylamine and oleic acid as capping and structure directing agents. The cooperative nature of the nanocrystal growth and assembly resulted in mesoscopic one-dimensional ribbon-like superstructures made of these ultrathin nanocrystals. The process reported here is gener...

A composite of cellulose extracted from bagasse with Nb2O5·nH2O in three different proportions (16.67, 37.5 and 50.0 wt%) was prepared using the co-precipitation method. The materials were characterized by X-ray diffractometry (XRD), Fourier transform infra-red spectroscopy (FTIR), thermogravimetric analysis (TG/DTG), differential scanning calorimetry (DSC) and scanning electron microscopy (SEM...

Tantalum, niobium, and their oxides are important precursor materials, essential for high-temperature alloys electronic devices. The primary hydrometallurgical extraction technique to extract tantalum niobium from minerals involves hydrofluoric acid (HF) digestion of the concentrates, followed by solvent as an oxide separation purification step. Solvent extraction, on other hand, releases organ...

In this work, the photocatalytic performance of Ag3PO4, Nb2O5 and Ag3PO4/Nb2O5 hybrid photocatalysts to degrade methyl orange dye, MO, in an aqueous solution under visible light irradiation was evaluated. The Ag3PO4 photocatalysts, with various Ag Nb molar ratios, were prepared using a facile precipitation method. characterized by X-ray diffraction, UV–Visible, Photoelectron, Photoluminescence ...