By TRUNNANO | 20 August 2021 | 0 Comments
Nickel oxide for a wide range of uses
About nickel oxide
The chemical formula of Nickel oxide is NiO. It is a common inorganic compound. Nickel is the most stable oxide. It is a green powder that is widely used in daily life. It is also used to prepare high purity (>99.98% nickel). This product is harmful to human health. Please take precautions when contacting. It can cause cancer and allergies to the human body.
Chemical and physical properties of nickel oxide
Nickel oxide is a green powder. The melting point is 1980±20°C. The density is 6.67g/cm3. It is insoluble in water, insoluble in lye, alkaline oxide, and soluble in acid and ammonia.
Entanglement nickel oxide resulting in an internal structure of the carriers can not flow, resulting in a non-conductive nickel oxide as the insulator.
In addition, the physical properties of nickel oxide also change with the change of the preparation temperature. As the preparation temperature increases, its density and resistance increase, and solubility and catalytic activity decrease.
The color turns yellow after heating. When heated to 400°C, it absorbs oxygen in the air and produces high-oxide nickel (Ni2O3), which is reduced to NiO at 600°C. Reaction formula: == 2Ni2O3,2Ni2O3 == 600 ℃ == 4NiO + O2 4NiO + O2 == 400 ℃.
What is nickel oxide used for?
1. Used as a binder and colorant for enamel, and a pigment for ceramics and glass. In the production of magnetic materials, it is used to produce nickel-zinc ferrite, etc., as well as raw materials for the production of nickel salts and nickel catalysts, and are used in metallurgy and picture tubes. Used as electronic component materials, catalysts, enamel coatings and battery materials.
2. NiO can be used to restore the production of nickel elements, but do not use the CO reduction NiO without protection. This is because Ni and CO react to form highly toxic and volatile nickel tetracarbonyl Ni (CO)4, which is difficult to detoxify. But it is kind of dangerous.
Usually, it is safer to use a reducing agent such as H2 to restore NiO.
NiO+H2==High temperature==Ni+H2O
3. Used in the manufacture of nickel salts, ceramics, glass, catalysts, magnetic materials, etc.
4. The use as an electronic material and battery material. 
Preparation method of nickel oxide
Nickel oxide is an inorganic substance with a chemical formula of NiO and a molecular weight of 74.71. What is NiO in chemistry? Nickel (II) oxide is a compound with the chemical formula NiO. It is the main oxide of nickel. Nickel (II) oxide 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. It is a green-black cubic crystal. It is soluble in acid and ammonia but insoluble in water. Is nickel oxide soluble? Nickel oxide is soluble in acid, potassium cyanide and ammonium hydroxide.
Process of the preparation
1. Put NiCO3 or Ni(NO3)2•6H2O into a platinum crucible, heat it at 1000～1100℃ for 6h, and then cool it in N2 without O2. If it is cooled in air, the surface will be skinned (Ni2O3), which can be reduced and removed with H2 at 100°C.
NiCO3NiO+ CO2↑
Ni (NO3)2•6H2ONiO+ 2HNO3+ 4H2O
2. Put NiCO3 into the pear-shaped decomposer and repeatedly fill it with N2 without O2 to extract the air. The device was then evacuated to high vacuum at 100°C and then heated to 350°C for 90 minutes. Transfer the product to a pre-prepared glass bubble, and then seal it.
3. Adopt nickel carbonate method and ammonia method. The nickel carbonate method is to dissolve gold waste nickel in sulfuric acid or nitric acid, add soda ash to prepare nickel carbonate, and then wash, dry and burn it. The ammonia method is prepared by dissolving nickel waste, adding ammonium sulfate to produce nickel ammonium sulfate, and then dehydrating, calcining, and pulverizing.
Ni+ H2SO4====NiSO4+ H2↑
NiSO4+ Na2CO3====Na2SO4+NiCO3
NiCO3NiO+ CO2↑
4. The nickel salt calcining decomposition method uses hydrogen sulfide, hydrogen peroxide, sodium carbonate, and ammonia to remove copper, iron, manganese, chromium and other impurities from nickel alloy waste (iron, copper, chromium, etc.), and then reacts with sulfuric acid to produce sulfuric acid Nickel ammonium is roasted and crushed to obtain finished nickel oxide.
(NH4)2Ni (SO4)2====== NiO+ SO3+ (NH4) HSO4+NH3
Innovated batteries by making nickel oxide thin films
Scientists have tried to use semiconductors such as light-absorbing silicon and gallium arsenide commonly used in solar panels to prepare electrodes, but a fatal problem has arisen. When these semiconductors are exposed to water, an oxide layer is formed, that is, rust.
Lewis and other scientists tried to prepare protective coatings for the electrodes, but all attempts failed for various reasons. "The coating you want can do many things: it is chemically compatible with the semiconductor you are trying to protect, it is impermeable, conductive, highly transparent to incident light, and very effective in catalyzing the reaction that produces oxygen and fuel." Research Director Lewis said, "As long as the prepared protective layer can exhibit any of the above characteristics, this will be an important advancement, but what we have now discovered is a material that can do everything at once."
The team has demonstrated that the nickel oxide film is compatible with many different types of semiconductor materials, including silicon, indium phosphide and cadmium telluride. When nickel oxide is used in a photoanode, its performance is far superior to other similar films, including the one made by Lewis' team last year. The film is more complex and consists of two layers. Its main component is the naturally occurring composite titanium dioxide (TiO2), which is usually used to make sunscreen, toothpaste and white paint.
Nickel oxide Supplier
TRUNNANO (aka. Luoyang Tongrun Nano Technology Co. Ltd.) is a trusted global Nickel oxide supplier & manufacturer with over 12 years of experience in providing super high-quality chemicals and Nanomaterials. Currently, our company has successfully developed a series of materials. The Nickel oxide produced by our company has high purity and fine Nickel oxide size. For the latest price of Nickel oxide, send us an email or click on the needed products to send an inquiry.
The chemical formula of Nickel oxide is NiO. It is a common inorganic compound. Nickel is the most stable oxide. It is a green powder that is widely used in daily life. It is also used to prepare high purity (>99.98% nickel). This product is harmful to human health. Please take precautions when contacting. It can cause cancer and allergies to the human body.
Chemical and physical properties of nickel oxide
Nickel oxide is a green powder. The melting point is 1980±20°C. The density is 6.67g/cm3. It is insoluble in water, insoluble in lye, alkaline oxide, and soluble in acid and ammonia.
Entanglement nickel oxide resulting in an internal structure of the carriers can not flow, resulting in a non-conductive nickel oxide as the insulator.
In addition, the physical properties of nickel oxide also change with the change of the preparation temperature. As the preparation temperature increases, its density and resistance increase, and solubility and catalytic activity decrease.
The color turns yellow after heating. When heated to 400°C, it absorbs oxygen in the air and produces high-oxide nickel (Ni2O3), which is reduced to NiO at 600°C. Reaction formula: == 2Ni2O3,2Ni2O3 == 600 ℃ == 4NiO + O2 4NiO + O2 == 400 ℃.
What is nickel oxide used for?
1. Used as a binder and colorant for enamel, and a pigment for ceramics and glass. In the production of magnetic materials, it is used to produce nickel-zinc ferrite, etc., as well as raw materials for the production of nickel salts and nickel catalysts, and are used in metallurgy and picture tubes. Used as electronic component materials, catalysts, enamel coatings and battery materials.
2. NiO can be used to restore the production of nickel elements, but do not use the CO reduction NiO without protection. This is because Ni and CO react to form highly toxic and volatile nickel tetracarbonyl Ni (CO)4, which is difficult to detoxify. But it is kind of dangerous.
Usually, it is safer to use a reducing agent such as H2 to restore NiO.
NiO+H2==High temperature==Ni+H2O
3. Used in the manufacture of nickel salts, ceramics, glass, catalysts, magnetic materials, etc.
4. The use as an electronic material and battery material.
Nickel oxide is an inorganic substance with a chemical formula of NiO and a molecular weight of 74.71. What is NiO in chemistry? Nickel (II) oxide is a compound with the chemical formula NiO. It is the main oxide of nickel. Nickel (II) oxide 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. It is a green-black cubic crystal. It is soluble in acid and ammonia but insoluble in water. Is nickel oxide soluble? Nickel oxide is soluble in acid, potassium cyanide and ammonium hydroxide.
Process of the preparation
1. Put NiCO3 or Ni(NO3)2•6H2O into a platinum crucible, heat it at 1000～1100℃ for 6h, and then cool it in N2 without O2. If it is cooled in air, the surface will be skinned (Ni2O3), which can be reduced and removed with H2 at 100°C.
NiCO3NiO+ CO2↑
Ni (NO3)2•6H2ONiO+ 2HNO3+ 4H2O
2. Put NiCO3 into the pear-shaped decomposer and repeatedly fill it with N2 without O2 to extract the air. The device was then evacuated to high vacuum at 100°C and then heated to 350°C for 90 minutes. Transfer the product to a pre-prepared glass bubble, and then seal it.
3. Adopt nickel carbonate method and ammonia method. The nickel carbonate method is to dissolve gold waste nickel in sulfuric acid or nitric acid, add soda ash to prepare nickel carbonate, and then wash, dry and burn it. The ammonia method is prepared by dissolving nickel waste, adding ammonium sulfate to produce nickel ammonium sulfate, and then dehydrating, calcining, and pulverizing.
Ni+ H2SO4====NiSO4+ H2↑
NiSO4+ Na2CO3====Na2SO4+NiCO3
NiCO3NiO+ CO2↑
4. The nickel salt calcining decomposition method uses hydrogen sulfide, hydrogen peroxide, sodium carbonate, and ammonia to remove copper, iron, manganese, chromium and other impurities from nickel alloy waste (iron, copper, chromium, etc.), and then reacts with sulfuric acid to produce sulfuric acid Nickel ammonium is roasted and crushed to obtain finished nickel oxide.
(NH4)2Ni (SO4)2====== NiO+ SO3+ (NH4) HSO4+NH3
Innovated batteries by making nickel oxide thin films
Scientists have tried to use semiconductors such as light-absorbing silicon and gallium arsenide commonly used in solar panels to prepare electrodes, but a fatal problem has arisen. When these semiconductors are exposed to water, an oxide layer is formed, that is, rust.
Lewis and other scientists tried to prepare protective coatings for the electrodes, but all attempts failed for various reasons. "The coating you want can do many things: it is chemically compatible with the semiconductor you are trying to protect, it is impermeable, conductive, highly transparent to incident light, and very effective in catalyzing the reaction that produces oxygen and fuel." Research Director Lewis said, "As long as the prepared protective layer can exhibit any of the above characteristics, this will be an important advancement, but what we have now discovered is a material that can do everything at once."
The team has demonstrated that the nickel oxide film is compatible with many different types of semiconductor materials, including silicon, indium phosphide and cadmium telluride. When nickel oxide is used in a photoanode, its performance is far superior to other similar films, including the one made by Lewis' team last year. The film is more complex and consists of two layers. Its main component is the naturally occurring composite titanium dioxide (TiO2), which is usually used to make sunscreen, toothpaste and white paint.
Nickel oxide Supplier
TRUNNANO (aka. Luoyang Tongrun Nano Technology Co. Ltd.) is a trusted global Nickel oxide supplier & manufacturer with over 12 years of experience in providing super high-quality chemicals and Nanomaterials. Currently, our company has successfully developed a series of materials. The Nickel oxide produced by our company has high purity and fine Nickel oxide size. For the latest price of Nickel oxide, send us an email or click on the needed products to send an inquiry.
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