Browse many computed properties for this trigonal NiO2 compound, including formation energy from the elements, energy of decomposition into the set of most stable materials at this chemical composition, bulk crystalline density, and band gap. Also known as: Nickel(IV) oxide, Nickel oxide.
The entirely accidental observation of increased sintering performance of nickel-infiltrated yttria-stabilized zirconia (8YSZ) in a molybdenum and oxygen rich atmosphere was explored. Molybdenum and nickel were found to be synergistic sintering aids for 8YSZ. However, sintering had to take place in an atmosphere of flowing oxygen. …
Although largely studied, contradictory results on nickel oxide (NiO) properties can be found in the literature. We herein propose a comprehensive study that aims at leveling contradictions related to NiO …
Acetone is a tracer for monitoring air quality and a potential breath maker for diabetes. It remains a great challenge for current portable sensors to sensitively and selectively detect acetone at low-ppb (part per billion) level. Herein, we present an ordered mesoporous nickel oxide (NiO) with both large mesopores and ultrathin crystalline …
Abstract Semiconductor metal oxides have attracted wide attention in the area of gas sensor due to that they have unique advantages in the rapid and accurate detection of harmful gases. A simple strategy is to synthesize porous NiO hollow microspheres via a simple hydrothermal method with trisodium citrate as structure guide …
Electron-beam-evaporated nickel oxide (NiOx) films are known for their high quality, precise control, and suitability for complex structures in perovskite (PVK) solar cells (PSCs). However, untreated NiOx films have inherent challenges, such as surface defects, relatively low intrinsic conductivity, and shallow valence band maximum, which seriously …
The deposition of iron-nickel oxides has already been reported few times for other applications involving highly concentrated nickel films (Ni > 83% atomic mass). …
Nickel oxide (NiO) is a wide band gap semiconductor material that is used as an electrochromic layer or an ion storage layer in electrochromic devices. In this work, the effect of annealing temperature on sol-gel NiO films was investigated. Fourier transform infrared spectroscopy (FTIR) showed that the formation of NiO via decomposition of the …
Although used battery cathodes, the nickel oxides/hydroxides were incorporated with graphene materials to enhance the charge density and the power density of the hydrid supercapattery nanocomposites. The higher power density and energy density of the hydrid supercapattery nanocomposites bridges the gap between batteries and …
We aim at elucidating the mechanism of the trimethyl aluminum (TMA) decomposition on oxidized nickel (NiO) and metallic nickel (Ni) facets in the absence of a source of hydroxyl groups. This TMA decomposition mechanism constitutes the earliest stage of growth of Al2O3 coatings with the atomic layer decomposi
In this work, a low temperature chlorination roasting -water leaching process was proposed to extract metals from low-grade mixed oxide–sulfide nickel concentrate. …
In this study, bismuth oxide/nickel oxide (Bi 2 O 3 /NiO)-based composite is supported over the nickel (Bi 2 O 3 /NiO-NF) and carbon nanotube fiber (Bi 2 O 3 /NiO-CNTF) to develop two different electrode systems for water-splitting studies.
Nickel oxide (NiO) micro/nanoflowers were synthesized by hydrothermal treatment followed by calcination. The concentration of potassium persulfate (K 2 S 2 O 8) plays a significant role in the formation of the NiO micro/nanoflowers.The NiO film annealed at 300 °C for 1.5 h exhibits fast coloration/bleaching response (1.3 s for coloration and 3.2 s for …
General studies on sulfuric acid pressure leaching of nickel concentrates are characterized by the operating conditions of the pressure oxidation process and thus …
Their result demonstrates that a nickel oxide film with nanoflakes and open macropores has superior capacitive behaviour. The specific capacitance of a nickel oxide film with open macropores at a scan rate of 10 mVs −1 reaches as high as 351 F g −1. In order to enhance the capacitive behaviour of nickel oxide nanoflakes play an important ...
The impact of the Ag9+ ion irradiation on the characteristics of nickel oxide (NiO) films with several ion fluences including 1x1012, 1x1013, and 1x1014 ions/cm2 has been studied. These films were ...
Nickel oxide nanotubes with great antibacterial activities, electrochemical capacitance, and magnetic properties have been synthesized through a precursor method with dimethylglyoxime as precipitant for the precursor, and the method has been developed for the synthesis of Ni/C nanorods.
Oxygen evolution catalysis in alkaline conditions over hard templated nickel-cobalt based spinel oxides. International Journal of Hydrogen Energy 2017, 42 (46), 27910-27918.
Nickel oxide (NiO) being a p- type semiconductor,has wide bandgap and is eco-friendly, low cost and stable material that can serve as promising material for a counter electrode in the DSSC (Dye-Sensitized Solar Cells). The use of capping agent is to control the size of nanoparticles and also prohibit the agglomeration of the synthesized material.
Considering on the low grade of nickel and iron in laterite nickel ore, solid-state reduction roasting combined with magnetic separation to remove the magnesium …
Metallic oxides are an interesting research area due to their intriguing physicochemical, electrical, magnetic and optical properties [].Hence, the metal oxide nanoparticles such as nickel oxide, iron oxide, zinc oxide, tin oxide, titanium oxide, and copper oxide have been recurrently synthesized because of their fascinating properties …
1. Introduction. Nickel oxide (NiO) is an important wide band gap semiconductor material with a band gap width of approximately 3.6 to 4.0 eV. As one of the rare p-type semiconductors in transition metal oxides, nickel oxide has a stable band gap and excellent electrochromic properties [].As a new functional material, NiO has …
Nickel oxide (NiO) is a green and well-described oxide that crystallizes in a cubic structure and is known to be a p-type wide bandgap (3.6–4.0 eV) semiconductor [53].The six coordination numbers both for nickel and oxygen atoms make NiO crystal lattice looks like that of NaCl or the so-called rock salt structure [54].Nickel oxide is a significant …
Intelligent energy-saving technologies have received widespread global attention amidst the continuous intensification of energy issues. Electrochromic technology provides dynamically adjustable optical properties aimed at reducing building energy consumption. NiO is one of the most widely studied and applie
We report a nickel-catalyzed reductive cross-coupling between readily available nitroarenes and phosphine oxides to access phosphinic amides. This reaction used NiCl 2 /Xantphos as a catalyst, zinc as a reductant, and TMSCl as an additive, resulting in various phosphinic amides with moderate to good yields. A gram-scale …
Nickel concentrates typically are smelted and refined to produce Class 1 nickel products which can be used to manufacture metal salts. Alternatively, a process …
Do not put nickel carbonate powder directly into the tank 2-7 lbs (2.4-8.4 g/L) of nickel carbonate per 100 gallons of plating solution. 2. A better (in my opinion) method is to pack a filter with nickel oxide circulate the nickel bath through the filter until the pH reaches 5-5.2. It takes about 1.5-5.25 lbs of nickel oxide per 100 gallons of ...
An in situ Raman spectroscopic investigation has been carried out to identify the composition of the active phase present on the surface of nickel electrodes used for the electrochemical evolution of oxygen. The electrolyte in all cases was 0.1 M KOH. A freshly polished Ni electrode oxidized upon immersion in the electrolyte and at potentials …
The mineralogical characterization and possible beneficiation strategies of a nickel sulfide concentrate from a Western Australian deposit were investigated to …
NiO is Halite, Rock Salt structured and crystallizes in the cubic Fm-3m space group. The structure is three-dimensional. Ni2+ is bonded to six equivalent O2- atoms to form a mixture of corner and edge-sharing NiO6 octahedra. The corner-sharing octahedral tilt angles are 0°. All Ni–O bond lengths are 2.10 Å. O2- is bonded to six equivalent Ni2+ atoms to form …
Extraction of metals from complex sulfide nickel concentrates by low–temperature chlorination roasting and water leaching.
IGO Limited, an ASX listed nickel miner, has recently patented a process for production of high purity/battery grade nickel sulfate directly from nickel sulfide …
Sol–gel derived nickel oxide (NiO x) has been extensively investigated as the hole injection layer (HIL) for many optoelectronic devices because of its advantages of high environmental stability and low cost …
The electrochemical behavior and catalytic properties of nickel oxide (NiOx) are enhanced through cathodic electroplating and subsequent electrochemical activation in an alkaline aqueous electrolyte. The electrochemical detection of ʟ-glutamate becomes feasible by introducing an amine group through immobilizing APTES ((3-aminopropyl ...