Is the synthesis of nickel oxide complicated?

Overview of nickel oxide NiO powder

Nickel oxide is a green-black cubic crystal, soluble in acid and ammonia, but insoluble in water. It turns yellow when heated, with a relative density of 6.67 and a melting point of 1984°C. When heated to 400°C, it absorbs oxygen in the air and becomes nickel trioxide. It is reduced to nickel oxide at 600°C. The nickel oxide calcined at 1000°C is green and yellow.

There are many synthetic methods of nickel oxide, mainly solid method, homogeneous precipitation method, sol-gel method, emulsion polymerization method, oxalate thermal decomposition method, etc. At present, the industry generally adopts liquid-phase wet chemical precipitation and calcination method, namely Nickel carbonate is pyrolyzed to produce nickel oxide. The specific process is to purify qualified nickel solution, add sodium carbonate, precipitate nickel carbonate, filter, wash away sodium salt, dry, calcining and thermally decompose to obtain target product nickel oxide.

Nickel oxide is an inorganic substance with a chemical formula of NiO and a molecular weight of 74.71. It is a green-black cubic crystal, soluble in acid and ammonia, but insoluble in water, and turns yellow when heated. It is obtained by the action of nickel and oxygen at a temperature higher than 400°C, or by the pyrolysis of nickel carbonate at 350°C. Used in the manufacture of alloys, batteries, glass, enamel, ceramics, electronic components, nickel salts, and as a catalyst.

Nickel oxide NiO powder is the main oxide of nickel and is classified as an alkali metal oxide. Millions of kilograms of different quality products are produced every year, mainly as intermediates for nickel alloy production. The mineral form of NiO (arsenite) is very rare. Other nickel (III) oxides have also been claimed, such as Ni2O3 and NiO2, but they have not been confirmed by X-ray crystallography.

The nickel oxide NiO powder adopts a NaCl structure with octahedral Ni2+O2 positions. Conceptually, simple structures are often called rock salt structures. Like many other binary metal oxides, NiO is usually not stoichiometric, which means that the ratio of Ni:O deviates from 1:1. In nickel oxide, this non-stoichiometric NiO is accompanied by a color change. The correct stoichiometric NiO is green, and the non-stoichiometric NiO is black.

Nickel oxide NiO powder is obtained by the action of nickel and oxygen at a temperature higher than 400°C, or by the pyrolysis of nickel carbonate at 350°C. Used in the manufacture of alloys, batteries, glass, enamel, ceramics, electronic components, nickel salts, and as a catalyst. Nickel oxide NiO can be prepared by a variety of methods. When heated above 400°C, nickel powder reacts with oxygen to form NiO. In some commercial processes, green nickel oxide is made by heating a mixture of the following substances, nickel powder and water at 1000°C. Adding NiO can increase the reaction rate.

The simplest and most successful preparation method is to pyrolyze nickel (II) compounds (such as hydroxides, nitrates and carbonates) to produce light green powders. By heating the metal in oxygen, elemental synthesis can produce gray to black powder, indicating a stoichiometric error. It combines with sodium oxide and potassium oxide at high temperature (> 700°C) to form the corresponding nickelate.

In addition, nickel oxide nanoparticles can be prepared by thermally decomposing newly prepared nickel hydroxide at 300°C (572°F) through the sol-gel route. X-ray diffractometer and vibrating sample magnetometer can be used to characterize the nickel oxide nanoparticles prepared by this method.

Application of nickel oxide NiO powder

Nickel oxide NiO has a variety of professional applications, usually used to distinguish between "chemical grade" and "metallurgical grade". "Chemical grade" is a relatively pure material used for special applications, while "metallurgical grade" is mainly used to produce alloys. Used in the ceramic industry to make glass powder, ferrite and enamel. The sintered oxide is used to produce nickel steel alloys. Charles Edouard Guillaume won the 1920 Nobel Prize in Physics for his research on nickel steel alloys, which he called Invar and Invar.

Nickel oxide NiO is a commonly used hole transport material in thin-film solar cells, and is also a component of nickel-iron batteries (also known as Edison batteries) and a component of fuel cells. As specialty chemicals and catalysts. Recently, until the development of environmentally friendly Ni-MH batteries, NiO was used to make NiCd rechargeable batteries used in many electronic devices. Electrochromic device.

Nickel oxide NiO is used as a binder and colorant for enamel in the push rod industry.

The ceramic industry is used as a raw material for colorants.

Used as a raw material for nickel-zinc ferrite in the production of magnetic materials.

Colorants for stained glass and tubular glass bulbs in the glass industry.

It is also a material for manufacturing nickel salts, nickel catalysts and secondary batteries.

Nickel Oxide NiO can react with acids to form salts and other compounds, such as nickel oxide. Nickel sulfamate and electroplating hydrodesulfurization catalyst

A nickel oxide film doped with gold with nickel molybdate can be used as a transparent electrode in a photovoltaic device.

Nickel oxide NiO powder price

The price of nickel oxide NiO powder will vary randomly with the demand of production cost, transportation cost, international situation, exchange rate and market supply and demand. Tanki New Materials Co.,Ltd. aims to help all industries and chemical wholesalers find high-quality and low-cost nanomaterials and chemicals by providing turnkey customized manufacturing services. If you are looking for nickel oxide NiO powder, please feel free to send the latest inquiry price of nickel oxide NiO powder.

Suppliers of Nickel Oxide NiO Powder

As a global supplier of nickel oxide NiO powder, Tanki New Materials Co.,Ltd. has extensive experience in the performance, application and cost-effective manufacturing of advanced engineering materials. The company has successfully developed a series of powder materials (including boron carbide, aluminum carbide, titanium carbide, etc.), high-purity targets, functional ceramics and structural devices, and provides OEM services.

Technical Parameter of Nickel Oxide NiO Powder