Porous metals are recently gaining interest in various fields with lots of advantages of high conductivity, high surface area, good permeability and light weight properties. In present study, a novel three-dimensional porous nickel films (3DNFs) have been efficiently fabricated by controllable e...

I.R. absorption studies were conducted on the formation of basic nickelous nitrate. It was found that the basic salt precipitate contains free nitrate ions balanced by unreacted nickel ions. As water is rejected from the precipitate the nitrate ions coordinate with the nickel. At a high pH these...

We have explored a nanocomposite composed of a bimetallic CoNi-zeolitic imidazole framework embedded by MoS2 nanosheets (MoS2@CoNi-ZIF), as a bifunctional electrocatalyst for non-Pt methanol oxidation reaction (MOR) and overall water splitting in an alkaline solution. The series of MoS2@CoNi-ZIF...

The effects of subcutaneous (s.c.) injections of magnesium acetate (MgAcet) on the acute toxicity of intraperitoneal (i.p.) nickelous acetate (NiAcet) were studied in rats. Male F344/NCr rats, 150–200 g body wt, received either NiAcet alone, MgAcet alone, or both. The dose of NiAcet was 115 μm...

1.1. The influence of the pressure, the space velocity, and the temperature on the dimerization and polymerization of ethylene in the presence of an impregnated nickelous oxide-aluminosilicate catalyst has been investigated.2.2. At the optimum temperature of 275°, the main reactions are: at atm...

Perovskite-type mixed oxides LaCrO3 and Nd0.95CrO3 were synthesized by the polymerization complex method. The perovskites were characterized by different techniques aiming to evaluate the influence of the non-stoichiometry and the nature of site A on the catalytic properties for the POM reaction...

Two neodymium(III) six-coordinate complexes NdCl3(3-Br-4-CH3OC7H7NO)3 (Nd1) and Nd(C7H9NO)5(C4H8O2)(ClO4)3 (Nd2) have been synthesized and characterized. The FT-IR and FT-Raman data were acquired, and a complete vibrational assignment of the fundamental modes of the compounds was carried out. Th...

Neodymium oxide (Nd2O3) nanoparticles were chemically embedded on a state-of-the art carbon felt (CF) by a precipitation method in non-aqueous solution. Different Nd2O3 loadings were chosen and the obtained electrocatalyst-loaded felts tested for application as electrode in all-vanadium redox fl...

The possibility of neodymium electrowinning from neodymium oxide using a reducing agent (RA) produced in-situ by solvent reduction was investigated in molten LiF⿿CaF2⿿Li2O between 900 °C and 1040 °C. Nd2O3 galvanostatic electrolyses were performed and reaction products were analyzed by SEM, XR...

Carbon dioxide emission to the atmosphere is worsened as all the industries emit greenhouse gases (GHGs) to the atmosphere, particularly from refinery industries. The catalytic chemical conversion through methanation reaction is the most promising technology to convert this harmful CO2 gas to we...

Electrolytic production of metallic neodymium is carried out in fused neodymium fluoride salts containing neodymium oxide. Two major challenges pertaining to neodymium production in fluoride salts are a) low solubility of neodymium oxide in fluoride melt, b) possibility of anodic gas evolution (...

Selenium (Se)-based materials for sodium (ion) batteries are currently attracting extensive attentions owing to their fast kinetics and excellent cyclability; at the same time, achieving high Se content, which is crucial to maintain the competitive edge over other kinds of electrode materials, s...

Sulfur-bearing species have received a great deal of interest due to their potential risks and applications as well as their specific interaction with metal nanoparticles. This interaction influenced greatly the properties and functionality of nanoparticles, but is still poorly understood. In th...

Appropriate tailings management is one of the main requisites for sustainable development in the mining industry. This research study aims to assess the use of low sulfide or sulfide free tailings (LST) as aggregates for rendering mortars, focusing on their cement hydration and durability. An au...

The divalent anion of sulfur (S2 −) from the digestion of sulfur-containing bauxite considerably harms Bayer alumina production. This study experimentally investigated the reaction behavior of sodium sulfide in the processes of formation and transformation of desilication products generated by t...

In present work, the phase equilibrium of methane + cyclopentane (CP) + timethylene sulfide (TMS) hydrate were measured in NaCl solution at the temperature range from 286.42 to 303.77 K and the pressure varying from 1.16 to 12.49 MPa. The experimental data were measured with an isochoric T-cycle...

In this study, the van der Waals and Platteeuw model was coupled with the Cubic Plus Association (CPA) equation of state (EoS) for equilibrium calculations in systems with gas hydrates. It has been applied to simple and complex multicomponent systems involving methane, ethane, propane, isobutane...

This paper investigated the potential of using reactive MgO-activated ground granulated blastfurnace slag (MgO-GGBS) as a binder in cemented paste backfill (CPB) from sulphide-rich tailings. The effects of reactive MgO content of MgO-GGBS on the unconfined compressive strength (UCS) of CPB were ...

This article presents an original study on stabilization of heavy metals in SSPS using sodium sulfide hydrate. The speciation and pH dependent leaching of the target heavy metals (Cr, Cu, Ni and Zn) based on GB 5085.3 and GB 16889 in both raw SSPS and stabilized products were examined. Results i...

Bottlenecks for realizing a commercial system for thermochemical heat storage (TCS) with hygroscopic salts are the chemical, physical and mechanical stability of the salt under operation conditions. Hence, improved knowledge of thermochemical materials (TCMs) is critical to spur progress in TCS ...