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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Bruce Henne
Grantham, US
★★★★★ 5
Great low cost USB C to 4K HDMI splitter adaptor
Color: Black
The Anker USB C Hub 5-in-1 USBC to HDMI splitter with 4K display with one powered USB c and 2 USB A ports works flawlessly and is a perfect travel companion or simple and inexpensive desktop dock to connect a moderan USB C only laptop to a large monitor up to 4K resolution. It supports 4K at 60 Hz so not for high speed gaming but it is flicker free for daily work where running at 60 Hz provides a clean looking 4K display. The USB C and USB A ports work perfectly. I already have four of these in different port configuration but wanted the 4K extension for travel and this was the best one for quality and bang for the buck.
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Reviewed in the United States on May 4, 2026
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Steve
Pawtucket, US
★★★★★ 5
Compact hub that punches well above its size
Color: Black
This hub handles 4K HDMI output and three data ports cleanly without any noticeable lag or connection issues. The powered ports on both the USB-C and USB-A sides are a useful feature for running peripherals without draining the host device. Compact enough to leave plugged in permanently without getting in the way. Works reliably on MacBook and Dell machines as described. Good value for a well-built hub with a solid feature set.
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Reviewed in the United States on June 8, 2026
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Winnie
Port Orchard, US
★★★★★ 5
Compact, Travel friendly, Works well with ROG ALLY
Color: White
This is a compact and well built adapter, and it is travel friendly. I use it for my ROG ALLY when I don’t want it docked and still need charging and other device inputs. It has just about enough ports for what I need, usb-c power delivery port for charging (ROG ALLY can still run at maximum performance using this with a 100W charging brick and a cable that allows 100W power pass through). I use the remaining USB-C port and two USB-A ports for external hard drives or gaming controller 2.4Ghz receiver. Transferring files between ROG ALLY and an external SSD with this adapter is fast, could reach above 380 mb/s. All the device inputs were as advertised, “plug and play”. The hdmi port also gives me an option to connect my ROG ALLY to TV when I don’t have the dock which takes up more space for traveling. One thing to note, you will have to use the USB-C port on your PC which provides more power (usually at the back and not on the front of the pc), if not plugged in to a power source. When I received my first order, I plugged it into the front USB-C port of my mini PC, just for my wired keyboard and mouse, the computer didn’t recognize it and couldn’t get any input from my keyboard and mouse. I returned the first one and thought it wouldn’t work as I expected. A few days later when I was using another Anker 7 in 1 USB-C adapter, I ran into the same issue but I know that adapter had been working well, then I realized I had to plug it into the port on the back of the PC. So I got this again and tried, it just worked like a charm. Hope they actually mentioned it on their product page so I wouldn’t have to return the first one. The cable length on this adapter is just right, not too long or too short when using with ROG ALLY (not hanging, since the cable is pretty sturdy, when I picked up the ROG ALLY, the adapter just comes along).
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Reviewed in the United States on August 18, 2025
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Seth
Grantham, US
★★★★★ 4
Reliable Hub That Gets the Job Done
Color: Blue, Color: Blue
Solid Anker USB C hub that does what it’s supposed to do. Ports work well and it’s easy to use right out of the box. Only downside is the hard plastic casing, it feels fine, but I could see it cracking if something heavy drops on it.
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Reviewed in the United States on February 23, 2026
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Zane
Alexandria, US
★★★★★ 5
Helped transfer data from Samsung Galaxy S21 with broken screen.
Color: Black
Helped me transfer data from a Samsung Galaxy S21 with broken screen. Simple put USB C end into phone , grab HDMI cable and plug into hub , then plug HDMI end into a monitor. Then grab a wireless keyboard & mouse and plug dongle into hub. Your phone will output to monitor and you can transfer data via Smart Switch using keyboard & mouse. Will only work if phone is unlocked I found on S21.
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Reviewed in the United States on May 22, 2026

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