SKU: 23758217391

Nitrogen-doped graphene sheet spherical mixture

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Description

Nitrogen-doped graphene sheet spherical mixtureProduct Name Name: Nitrogen doped graphene sheet spherical mixture Product Overview N doped graphene is a graphene material that introduces nitrogen atoms into the graphene lattice through a specific method, thereby altering its electronic structure and properties. The following is about nitrogen doping Nitrogen atoms mainly exist in the amorphous carbon layer of graphene, replacing some of the positions of carbon atoms. The doping concentration and

Product Name

Name:Nitrogen-doped graphene sheet spherical mixture

 

Product Overview

N-doped graphene is a graphene material that introduces nitrogen atoms into the graphene lattice through a specific method, thereby altering its electronic structure and properties. The following is about nitrogen doping

Nitrogen atoms mainly exist in the amorphous carbon layer of graphene, replacing some of the positions of carbon atoms.

The doping concentration and position of nitrogen atoms have a significant impact on the electrical and optical properties of nitrogen doped graphene.

In theory, nitrogen doping can introduce additional n-type impurity energy levels, which theoretically reduces the p-type energy gap accordingly.

The interaction between adjacent nitrogen atoms can introduce π - π transitions and non covalent n - σ transitions, further modifying the electrical properties of the material.

Nitrogen doped graphene has high thermal stability, mechanical strength, and oxidation resistance.

After nitrogen doping, the new adsorption sites on the surface of graphene can synergistically interact with gases, liquids, or biomolecules, which has good application prospects.

Technical Parameter

Diameter:0.5-10 µm (TEM&SEM) 

Specific surface area:~60 m2/g BET 

N content: ~1.2at% XPS 

Appearance: Black powder

Product Features

Good conductivity: Nitrogen doping can theoretically increase the carrier concentration and significantly improve the conductivity of graphene, which is better than carbon black. However, as it is a sheet-like material, the combination of compound and conductive carbon black can better form a conductive network, and adjusting the potential value can also improve the conductivity to some extent.

Excellent thermal conductivity: Nitrogen doped graphene has better thermal conductivity than graphite, and the effect of large and continuous phases is better, but other materials need to be added vertically to conduct heat.

Existence of active sites: The introduction of nitrogen atoms can generate more active sites in graphene, which is crucial for its application in chemical reactions, such as as as catalysts in fuel cells, with low cost, high catalytic activity, and good stability.

Adjustable electronic structure: The doping of nitrogen atoms changes the electronic structure of graphene, which helps to open the bandgap and thus alter its physical and chemical properties.

Application Fields

Electronic devices: Nitrogen doped graphene exhibits high carrier mobility and excellent conductivity in electronic devices, and can be used in field-effect transistors, flexible electronic devices, and sensors.

Energy storage: widely studied as an electrode material for lithium-ion batteries and supercapacitors, it has attracted much attention due to its high conductivity and excellent electrochemical performance.

Catalyst: Nitrogen doped graphene has abundant active sites and high specific surface area on its surface, making it suitable for use as a catalyst promoter, electrocatalyst, and photocatalytic reaction.

Sensors: High sensitivity and excellent electrochemical performance make them ideal materials in the field of sensors, which can be used to detect gases, chemicals, and biomolecules in the environment.

Biomedical applications: have broad application prospects in the biomedical field, including biosensing, drug release, tissue engineering, and bioimaging.

Related Information

Please e-mail for the detailed characterization data.

E-mail:[email protected]

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SKU: 23758217391

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4.7 ★★★★★
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Hudson
Natrona Heights, US
★★★★★ 1
Good interface but unwearable watch band
Color: Black
This review will be divided into 3 sections: looks, usability, and comfort. LOOKS I guess there's not much to say as style is very individual. I think this watch looks good for what you pay for it. USABILITY What I liked about this watch is that I could use it right out of the box. I have had basic Timex digital watches before (never this exact interface), and I was able to quickly figure it out. A quick glance at the manual to make sure I wasn't unaware of any features and I had 100% grasp of all the watch's features. The Timex interface puts many others to shame with its user-friendliness. On this model Timex has added a 'guide' on the display that tells you which button will do what-- increase number, decrease number, etc. This is cool. If you're even remotely handy with interfaces, once you learn this one, you'll know it backwards and forwards, and even if you forget, there's the in-display guide. The functions are standard for a Timex digital-- time and date, stopwatch with lap timing, countdown timer, and alarm. There is a 2nd time zone but no dedicated mode for it. You access it by holding the 'start' button when in the time mode. I like this feature as I occasionally need to know when to call people in 1 particular time zone. But, for example, if you are often switching back and forth between 2 time zones, you will have to reset the time to have the watch display the correct time at all times. And if you need more than 2 time zones, sorry, out of luck. Stopwatch (chrono) is good. Don't use the lap counter much but it seems to work well. Some have complained that the 'start' and 'stop' should be on the same button. Overall, it is a very uncluttered and usable interface. At first I thought it was very inaccurate at timekeeping, but it must have gotten accidentally reset because over the few months since I set it, it's only a couple seconds off from time.gov. very good timekeeping. It seems very water resistant. I have taken it swimming, surfing, and it held up fine. I haven't thoroughly tested its shock resistance but it has done some hiking and climbing where it got banged around a bit and it still works. COMFORT Unfortunately what the watch has in user interface usability, it totally lacks in comfort. The strap is a huge disaster. It is very rigid and uncomfortable. The 'waffling' or indented designs near the bezel on each side of the strap create areas where the strap digs into the wrist. with any prolonged wearing, it gets worse and worse until your wrist is begging you to take it off. The strap is just absolutely godawful. I have read reviews where G Shock owners said it was very good, well though out and comfortable. If that is the case, I shudder to imagine what a G Shock is like on the wrist. If constant pinching around sensitive areas on the side of the wrist seems like it would be the kind of thing to bother you, avoid this watch. I tried swapping it for another Timex band, which amazingly enough was uncomfortable it a DIFFERENT area! It seems Timex doesn't put much thought into their bands-- no part of the band should dig into the wrist. That's just obvious. CONCLUSION I really want to like this watch, I do. It's good-looking. It's very usable in terms of features. But the strap is terrible, so much so that the watch is unwearable. Unfortunately it took me about a week to figure this out, during which time the watch got sufficient wear so that it is no longer new, returnable condition. I am keeping it, using it as a 'beater' watch in the gym (I put my watch on the ground in the gym). If you purchase it I recommend you wear it for a good few hours while not doing anything that will scratch it, so that you can return it if need be.
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Reviewed in the United States on October 5, 2014
C
Verified Purchase
Curly and natural
Phoenix, US
★★★★★ 5
Best purchase ever!!!
Color: G9901: Gold band & Gold dial, Color: G9901: Gold band & Gold dial
The best fit,size, quality,weight and value for the individual in my life. You can see all the moving parts in the watch and he loved it!!! Seriously considering getting more for my kids and another color for him.
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Reviewed in the United States on February 20, 2026
K
Verified Purchase
Karar Abady
Fort Morgan, US
★★★★★ 5
.
Color: G9901: Two tone band & Black dial
Very good quality and looks luxury
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Reviewed in the United States on January 3, 2026
Y
Verified Purchase
Yoisnel Estrada Araujo
Fort Morgan, US
★★★★★ 5
Lo bollería a comprar
Color: G9901: Gold band & Black dial
Muy lujoso y elegantes un regalo excelente
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Reviewed in the United States on April 11, 2026
A
Verified Purchase
Amazon Customer
Lowell, US
★★★★★ 4
Make sure the clasp is suitable for the environment you will be wearing it in
Color: G9901: Black band & Black dial
I don't know if I didn't look closely at the clasp pick, or if I just didn't see one, but the clasp is a bit weakly designed for everyday wear. It's come unclasped twice in the 2 weeks I've been wearing it
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Reviewed in the United States on May 1, 2026

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