The aim of this study was to prove experimentally that an inexpensive high-performance liquid chromatography system for routine control, operating at moderate pressures as predicted by the theoretical optimization model of Martin, Eon and Guiochon, is feasible.Two improved types of Spherosil, XO...

Spherosil (with the commercial name “Porasil”) is one of the most specific adsorbents and its application is widened by its use in gas chromatography. It is based on porous silica beads, and is able, because of the hydroxyl groups on its surface, its sorption character, the behaviour of benzen...

Rapid gas chromatographic analyses are necessary in industrial routine control operations that are carried out by means of laboratory or process gas chromatography.A reduction in the analysis time by a factor of 2–5 can be easily achieved without the need for additional chromatographic equipmen...

We have synthesized fascinating nano-structure of Gadolinium oxide (Gd2O3) using controlled template-assisted electrochemical deposition technique which showed interesting anisotropic magnetic behavior. The nanotubes of Gd2O3 with average diameter 200 nm, length 10 µm and wall thickness 20 nm a...

The use of smart proppants traced with gadolinium and samarium was evaluated in a realistic model by Monte Carlo simulations.The addition of compounds with high thermal neutron capture cross section, such as gadolinium oxide (Gd2O3) and samarium oxide (Sm2O3) into ceramic proppants, makes them d...

The effect of the addition of gadolinium oxide (Gd2O3) in the thermal behavior of a (66%) kaolinitic ball clay was studied and compared with the pure clay.The incorporation of Gd2O3 is of technological interest for the design of smart ceramic proppants used for unconventional gas and oil well st...

Natural gadolinium oxide is added in nuclear fuels of compact design reactors to control the power mainly on the start of operation, as neutronic poison. Gadolinium has a high neutron absorption cross section (σγ). All Gd isotopes have significant σγ, specially 155 and 157 (60,900 and 254,00...

Gadolinium oxide (Gd2O3) nanoparticles with paramagnetic properties and biocompatible surfaces are promising materials for bioimaging applications. We synthesized in situ pegylated Gd2O3 (Gd2O3@PEG) nanoparticles by liquid phase pulsed laser ablation (PLAL) of a gadolinium target in a polyethyle...

The inappropriate and surfeit use of antibiotics have generated a hunt for safe and alternative antimicrobial agents against pathogenic bacteria. With the advancement in nanoscience and nanotechnology, promising opportunities for examining the bacterial effect of metal nanoparticles were demonst...

Gadolinium oxide (Gd2O3) is a potentially effective mineral additive that improves neutron shielding properties of cement based composites. The paper presents the influence of Gd2O3 and ulexite (a boron compound) on Portland cement hydration evaluated by isothermal calorimetry measurements and s...

Neuroblastoma accounts for 8–10% of malignancies in infants and children. It is urgent to develop an appropriate theranostic agent for effective diagnosis and therapy of neuroblastoma. Herein, we constructed RVG peptide and IRDye800-conjugated bovine serum albumin-coated triangular gadolinium o...

A simple, solvothermal method has been used to synthesize gadolinium oxide nanoparticles with 3 wt.% terbium doping (3% Tb-doped Gd2O3). The particles have cubic crystal structure (Space group Ia-3, No. 206). The mean particle size estimated from transmission electron microscopy is ∼ 55 nm and ...

Highly-ordered and hexagonally close-packed nanoporous zirconium oxide layer is formed on the surface of zirconium alloy by anodization, and the anti-oxidation behavior of the zirconium alloy with the nanoporous oxide layer has been investigated. The oxidation experiments were carried out in bot...

Fluoride contamination in groundwater is a worldwide problem that is related to human health. Zirconium-based adsorbents possess satisfactory selective defluoridation capacities. However, narrow efficiency pH range, easy aggregation and difficult separation are the main obstructions in practical...

In the present work, catalytic cracking of waste cooking oil (WCO) for the production of liquid fuels has been studied in a semi batch reactor under N2 atmosphere. Catalytic cracking was performed at a temperature range of 400–500 °C using zirconium oxide (ZrO2) as a catalyst. The influence of...

In pressurised water reactors (PWRs), fuel rods are clad with zirconium alloy tubes chosen for their low neutron capture cross section and good oxidation resistance. Understanding cladding-water corrosion reactions at 280–350 °C and the correlated hydrogen pickup into these Zr alloys is crucia...

The Transient Reactor Test (TREAT) facility at the Idaho National Laboratory currently utilizes a legacy Zircaloy-3 cladding, which is no longer commercially available. TREAT is air cooled and routinely operates at temperatures well above that of traditional reactor designs. This study investiga...

The aim of this paper is to deposit zirconium oxide films by magnetron sputtering process at different argon partial pressure values of 45%, 55%, 62% and 67%. The effect of argon partial pressure on structural, optical and wettability properties of zirconium oxide films is investigated in this r...

We present a numerical model to predict oxide scale growth and failure in zirconium clad exposed to water in out-of-pile conditions. The model includes the formation of two oxide sublayers on top of the metal clad, whose interfaces are tracked using a Stefan model coupled to diffusion kinetics. ...

In recent years, advances in nano-scale technology have led to the use of nanoparticles in almost all areas of life. Nanoparticles (NP) have been acknowledged as one of the emerging environmental threats; however, studies in different components of environment are limited. Among the available na...