SKU: 57894899381

Co3O4 nanoparticles

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Description

Co3O4 nanoparticlesProduct Name NameCo3O4 nanoparticles Product Overview Cobalt tetroxide belongs to transition metal oxides, which are in powder form and generally appear gray black or black in color. Its molecular weight is 240. 8, density is 6. 11cm2 g, and melting point is 895 C At room temperature, cobalt trioxide material is insoluble in water. When the temperature reaches above 900 C cobalt trioxide (Co3O4) decomposes into cobalt trioxide (Co2O3) and cobalt oxide

Product Name

Name:Co3O4 nanoparticles

 

 

Product Overview

Cobalt tetroxide belongs to transition metal oxides, which are in powder form and generally appear gray black or black in color. Its molecular weight is 240.8, density is 6.11cm2/g, and melting point is 895 ¡ãC At room temperature, cobalt trioxide material is insoluble in water. When the temperature reaches above 900 ¡ãC cobalt trioxide (Co3O4) decomposes into cobalt trioxide (Co2O3) and cobalt oxide (CoO), and the final products will stabilize into CoO. Meanwhile, cobalt trioxide is also a p-type semiconductor and antiferromagnetic material with a bandgap width of 1.5 eV. Co3O4 is a spinel type oxide with a lattice parameter of approximately 0.809nm. There are three methods for preparing cobalt trioxide based on the physical state of the required cobalt source: solid-phase method, gas-phase method, and liquid-phase method.


Technical Parameter

Status:Black powder

Diameter:10-40 nm(TEM:/span>

Magnetism:Non-Magnetic

 

Product Features

 

Electrochemical catalytic activity: Nano cobalt oxide exhibits excellent performance in the field of electrochemical catalysis, with good stability and high efficiency. It can be used as a catalyst for oxygen reduction reactions and hydrogen oxidation reactions, and is used in energy conversion technologies such as water splitting and fuel cells. Magnetism: Cobalt trioxide nanoparticles have magnetism, which makes them widely applicable in fields such as magnetic materials and magnetic storage devices. Photocatalytic performance: Nano cobalt oxide also has potential in the field of photocatalysis, which can catalyze the photolysis of water to produce hydrogen using sunlight or artificial light sources, providing a new solution for solar water splitting and sustainable energy. Gas sensitivity performance: Nano cobalt trioxide is sensitive to various gases and can be used in gas sensors and gas analysis fields, such as carbon dioxide sensors and toxic gas detectors. Enzyme like properties: Studies have shown that cobalt oxide nanoparticles exhibit peroxidase like and catalase like activity, which makes them potentially valuable in fields such as biosensing, disease diagnosis, and treatment.


Application Fields

 

Electrochemical catalyst: Nano cobalt trioxide has a wide range of applications in the field of electrochemical catalysis, such as catalysts used in energy conversion technologies such as fuel cells and water splitting. Lithium ion battery: Nano cobalt oxide can be used as a positive electrode material for lithium-ion batteries, with high specific capacity and good cycling performance, suitable for fields such as electric vehicles and rechargeable devices. Gas sensitive materials: Due to their sensitivity to various gases, nano cobalt oxide can be used in gas sensors and gas analysis fields, such as monitoring air quality and detecting toxic gases. Magnetic materials: By utilizing their magnetic properties, nano cobalt oxide can be used in fields such as magnetic data storage, magnetic sensors, and magnetic fluids. Biosensing: Based on its enzyme like properties, nano cobalt trioxide can be used in the field of biosensing, such as detecting biomolecules, disease markers, etc.


Related Information

Please e-mail for the detailed characterization data.

E-mail:[email protected]

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SKU: 57894899381

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Robert Hood
Charlottesville, US
★★★★★ 5
Great quality dust bags – perfect fit for my eufy robot vacuum!
Size: C10 / C20 Bags
These dust bags are exactly what I needed for my eufy Omni C20! They fit perfectly, install easily, and the 3-layer design really does help control dust and odors. The large 3.6L capacity means I don’t have to change them too often, even with daily vacuuming. Great value for the price, and the quality feels just as good as the original eufy bags.
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Reviewed in the United States on September 15, 2025
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Petey B.
Birmingham, US
★★★★★ 5
Works well
Size: C10 / C20 Bags
These bags are great!!
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Reviewed in the United States on March 23, 2026
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Chyanne Griess
Louisville, US
★★★★★ 4
Fits Eufy Vaccum
Size: C10 / C20 Bags
Does fit my basic self emptying Eufy. Have to move it around a bit to get it to recognize the bag, but it does fit!
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Reviewed in the United States on March 25, 2026
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Jonas Morel
Port Orchard, US
★★★★★ 5
Affordable, easy to install
Size: C10 / C20 Bags
Works great :)
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Reviewed in the United States on March 19, 2026
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Lucia
Chelsea, US
★★★★★ 1
Doesn’t fit
Size: C10 / C20 Bags
Same exact things happens to me of this review — If you have an Omni C20, don't bother with these. They do not fit. The cardboard is too small and it keeps tripping the sensor that detects the bag when I put the cover back on. I've tried multiple bags in the set and they all do the same thing. Now to go find the place to report this listing for false advertising so maybe other people won't get scammed like me and others in the comments have.
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Reviewed in the United States on March 19, 2026

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