SKU: 13774025315

Py-DA-COF

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Description

Py-DA-COFProduct Name NamePy DA COF Product Overview The concept of Covalent Organic Frameworks (COFs) materials was first proposed in 2005 by Yaghi et al., aiming to develop a new class of porous materials with highly ordered structures and specific functions. COF is a kind of crystalline organic porous polymer material with periodic structure formed by strong covalent bond of light elements (such as C, H, O, N, etc.). COF is derived from the polymerization

Product Name

Name:Py-DA-COF


Product Overview

The concept of Covalent Organic Frameworks (COFs) materials was first proposed in 2005 by Yaghi et al., aiming to develop a new class of porous materials with highly ordered structures and specific functions. COF is a kind of crystalline organic porous polymer material with periodic structure formed by strong covalent bond of light elements (such as C, H, O, N, etc.). COF is derived from the polymerization of small organic molecules. In order to meet the requirements of high crystallinity of COF materials, COF needs to continuously complete the recombination of covalent bonds in the polymerization process to form a long-range ordered crystal structure. Depending on the type of reaction, the main reactions to produce COF are: boric acid polycondensation (boron-oxygen bond), C-C coupling reaction (carbon-carbon bond), Schiff base reaction (imine bond), cyano-autopolymerization (triazine bond) and aryl ether polymerization (carbon-oxygen bond) reaction. Among them, CFS containing reversible boro-oxygen bonds, imine bonds and triazine bonds are the most common and widely used. The common methods of COF synthesis include solvothermal method, microwave assisted solvothermal method, mechanical force method, ionic thermal method and room temperature solution synthesis method.


Technical Parameter

Specific surface area: ~1634 m2/g

Pore size:~2.3 nm

 

Product Features

 

Low density: composed of C, H, O, N, B and other lightweight elements, low density.

High specific surface area: provides a large number of active sites and adsorption sites.

Chemical modifiability: Functional modifications can be made through the design and selection of organic monomers.

Good thermal stability and chemical stability: can maintain structural stability in a certain temperature and chemical environment.

Excellent pore properties: conducive to gas adsorption, storage and separation.

 

 

Application Fields

 

Gas storage and separation: COFs is known as a new type of porous crystal material for gas storage due to its high inherent specific surface area, extremely low density, high stability and adjustable pore size, such as storing hydrogen, carbon dioxide and other gases, and achieving efficient gas separation.

Catalysis: As a catalyst or catalyst carrier, participating in various chemical reactions. For example, improving the efficiency and selectivity of the reaction in organic synthesis. Its insolubility and high stability make it easy to separate from the reaction mixture, and the catalyst has good reusability.

Energy storage: Used for lithium-ion batteries, supercapacitors and other energy storage devices. Improve battery charging and discharging performance and cycle stability.

Sensing: Detect various substances in the environment, such as gas molecules, heavy metal ions, etc. It can be used for pollutant detection in environmental monitoring.

Liquid phase adsorption separation: A large number of open channels, large specific surface area, easy access to binding sites and high chemical stability make COF an excellent material for liquid phase adsorption.

 

Related Information

Please e-mail for the detailed characterization data.

E-mail:[email protected]

 

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SKU: 13774025315

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Laurie Janelle
Bozeman, US
★★★★★ 5
Strong ball for Strong chewer!
Perfect Size. This foster pitbull likes to tear stuff up, this ball has not ended up in the garbage like so many others have.
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Reviewed in the United States on January 20, 2026
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Koda James
Fort Morgan, US
★★★★★ 5
Good Toy Reward for Training
Size: Medium, Size: Medium
A great non-food reward for dog training and play! It’s the perfect size for my German Shepherd and the tie makes it easy to carry and play tug. It’s also been very durable for her sharp teeth!
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Reviewed in the United States on May 11, 2026
M
Verified Purchase
Melissa in JAX
Cuba, US
★★★★★ 2
Didn’t last long
Size: Medium, Size: Medium
One of my puppies chewed the rope apart within an hour. They still have one of the balls and play with it often.
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Reviewed in the United States on May 3, 2026
P
plumber@1024
Birmingham, US
★★★★★ 4
Good for playing tug of war, but better with a knotted handle
Size: Medium, Size: Medium
Strong and durable rope ball. I use it to play tug with my Doberman Pinscher -- at least until she decides that she's taking it, then she does!! The size is good, list of price is a good value for two, and my dog has a lot of fun with it. As you can see in the picture, there was not a knotted handle at the end. I was never a boy scout and don't know my knots and so anything I try to tie comes apart when we start playing. It would be nice if it came as it looked in the listing: with a knotted loop at the end.
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Reviewed in the United States on February 3, 2026
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Toasty
Pawtucket, US
★★★★★ 4
Pricey for quality but my dogs love them!
Size: Medium, Size: Medium
This toy is a bit on the pricey side for what it is, and no matter how many times I try to tie it, I just cannot get it to stay secured. I really like the idea behind it, but the overall quality feels just okay rather than amazing. The ball itself is very lightweight and almost feels more like a dense foam than traditional rubber, which initially threw me off. That said, it has actually been holding up well with regular use, which is a pleasant surprise. Most importantly, my puppies absolutely love these. The biggest win for me is that it comes as a two pack, which means I can play with both dogs at the same time without anyone feeling left out. At the end of the day, my girls are happy, and that makes me happy too.
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Reviewed in the United States on January 20, 2026

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