In this study, nanoporous nickel oxides (NiO) were synthesized using the previously prepared mesoporous silica templates (MCM-41 and KCC-1). First, 1.59 mmol Ni(NO 3) 2 ·6H 2 O was ground with 0.15 g of the silica template in an agate mortar. Subsequently, the powder mixture was calcined at 500 °C for 5 h. Next, the silica …

Nickel oxide (NiO) is an attractive se miconductor, bec ause. its properties are very useful for various photocatalytic, battery, electrochromic and chemical sensing applications. (Thomas et al ...

The voltammetric features in these conditions have been attributed to the oxidation and reduction of nickel hydrides, 10,14–16 nickel oxides and nickel hydroxides. 17–23 In this work, we intend to present a clarified interpretation of the electrode processes on Ni in alkaline media that is supported by voltammetric, XRD and X-ray ...

Comparison of Fe-enhanced oxygen evolution electrocatalysis in amorphous and crystalline nickel oxides to evaluate the structural contribution J. Bak, T. G. Yun, J. An, H. B. Bae and S. Chung, Energy Environ. Sci., 2022, 15, 610 DOI: 10.1039/D1EE01826D . To request permission to reproduce ...

Applications. Nickel oxide has a range of applications such as: Making electrical ceramics such as thermistors and varistors, for example ferrites (nickel zinc ferrite) Pigments for ceramic, glasses and …

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.

This article discusses the properties and applications of nickel oxide nanoparticles. Nickel is a Block D, Period 4 element, while oxygen is a Block P, Period 2 element. Nickel oxide nanoparticles appear in green …

A novel process, including sulfated roasting-water leaching of nickel concentrates for simultaneous extraction of metals and separation of iron and copper …

Chemistry. The journal of physical chemistry letters. 2024. This study focuses on the oxygen-evolution reaction (OER) activity comparison between two forms of NiFe (hydr)oxides: compound 1, where Fe ions are applied on the surface of nickel (hydr)oxide, and…. Expand.

1.. IntroductionMagnetic metal nanoparticles, such as nickel, cobalt and iron, have attracted considerable attention in the past 20 years because of both unique fundamental properties involved [1], [2] and technical applications in diverse fields such as multilayer ceramic capacitors (MLCs) [3], magnetic storage media [4] and so on.. A …

Nickel is an important alloy element, about 65 pct of nickel in the world and 85 pct in China are used to smelt stainless steel. [1,2] China has become the largest nickel consumer in the world due to the continuous increase of nickel demand in recent decades.[2,3] Nickel sulfide ore is one of the main resources for nickel production, …

Wu et al. [205], [211] prepared a porous nickel oxide film with interconnected nanoflakes and open macropores by anodic electrodeposition of oxy-hydroxide onto PS template adsorbed on a SS substrate by electrophoresis. The reported specific capacitance of nickel oxide films with open macropores were 351 F g −1 at 10 …

3.1 Crystal phase structure. Figure 1 shows the small angle and wide angle XRD patterns of the nickel oxide catalysts. From Fig. 1a, it can be seen that the relative intensity of the diffraction peak increases with the increases of calcination temperature, the crystallization degree is gradually increasing. The diffraction peak of m-Ni-1-5 sample …

In this work, a lithium and silver co-doping strategy has been successfully implied to prepare NiOx films for high performance inverted planar perovskite solar cells (PSCs). Compared to the pristine and single-doped NiOx, the Li and Ag co-doping approach exhibits the synergistic effect and can endow NiOx films with higher electrical conductivity, higher …

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 …

In this work, a low temperature chlorination roasting -water leaching process was proposed to extract metals from low-grade mixed oxide–sulfide nickel concentrate. …

Ni 5 P 4 @Nickel hydr(oxy)oxide hybrid nanosheets were fabricated by one-step strategy.. The hybrid is utilized as HER electrocatalysts in alkaline, seawater and acidic media. • The hybrid exhibited excellent HER performance than the pristine Ni 5 P 4 and NiO-Ni.. The hybrid weakens the P-H ads bonds for triggering the HER catalytic …

Mechanisms. In lithium glazes nickel can produce yellow. In the presence of high MgO, nickel can produce greens. Zinc is also helpful to develop color. Nickel with zinc oxide can produce steel blues. With larger amounts of zinc, lavender blue can be made. Nickel with calcium can produce tan.

PDF | On Jan 1, 1969, B.A. Movchan and others published STRUCTURE AND PROPERTIES OF THICK CONDENSATES OF NICKEL, TITANIUM, TUNGSTEN, ALUMINUM OXIDES, AND ZIRCONIUM DIOXIDE IN VACUUM. | Find, read ...

DOI: 10.1002/ceat.202100442 Corpus ID: 263465852; Nickel Oxide Nanoparticles: A Brief Review of Their Synthesis, Characterization, and Applications @article{Narender2022NickelON, title={Nickel Oxide Nanoparticles: A Brief Review of Their Synthesis, Characterization, and Applications}, author={Sapna S. Narender and V. …

The inclusion of nickel oxides improves catalytic capabilities even more, due to the increase in active sites as Ni 2+ is incorporated into the cobalt spinel structure; over 12,000 cycles, nickel-containing DSNCs lose only 7.5% capacity, whereas nickel-containing single-shelled nanocages lose 16.6% and nickel-free DSNCs lose 24.2% …

The synergy between battery materials such as nanostructured nickel oxides, hydroxides, LDH-Ni with supercapacitors such as graphene/functionalized graphene/doped graphene, provides better energy storage performances than the pure materials. Although used battery cathodes, the nickel oxides/hydroxides were …

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. …

Nickel oxide (NiO) nanoparticles were successfully synthesized by the reaction of nickel chloride with hydrazine at room temperature and thermal decomposition of the precursor nickel hydroxide (Ni(OH) 2) nanoparticles.The products were characterized by X-ray diffraction, Transmission electron microscopy, Fourier transform infrared …

Nanoparticles are fascinating materials that find many applications in basic and applied research. The chemical reduction technique is one of the easiest methods for synthesizing Nickel Oxide Nanoparticles (NiO NPs) in low-temperature ranges. Nickel Nitrate Hexahydrate (Ni(NO3)2.6H2O), Ascorbic acid, NaOH, and NaBH4 were applied as …

In this study, nickel oxide (NiO) nanoparticles with size range from 2 to 16 nm containing Stevia natural sweetener were eco-friendly synthesized via a simple method. Additionally, their various concentrations were evaluated on S. mutans bacteria by applying the broth dilution method. The results demonstrated that these spherical NiO ...

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 Journal of Materials …

Branchlike nickel oxide nanocrystals with narrow size distribution are obtained by a solution growth method. The size-dependent of magnetic properties of the nickel oxides were investigated. The results of magnetic characterization indicate that the NiO nanocrystals with size below 12.8 nm show very weak ferromagnetic state at room …

Oxygen evolution catalysis in alkaline conditions over hard templated nickel-cobalt based spinel oxides. International Journal of Hydrogen Energy 2017, 42 (46), 27910-27918.

Ni–Co oxides were further combined with other materials to improve MOR activity. For example, reduced graphene oxide (rGO) was combined with NiCo 2 O 4 to improve the activity and stability [24]. β-Ni(OH) 2 was also used to modify NiCo 2 O 4 surface to improve the MOR activity [25]. Besides cobalt and nickel-based hydroxides, …