SKU: 85452770394

Py-Azo-COF

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Description

Py-Azo-COFProduct Name NamePy Azo 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-Azo-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: ~1060 m2/g

Pore size:~1.8 nm

 

Product Features

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: 85452770394

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Great Quality Natural Fabric Dress
Size: X-Large, Color: White
This dress was everything the reviews said - nice weight, well made, and great fabric. The suggested size matched my usual size, and it fit like a glove. That said, there was no extra room, and the fabric has no stretch. I’m 5'9" and prefer long dresses to be closer to ankle length, but this one hit at an awkward length on me. For the price, it wasn’t worth keeping, though I do think it’s fairly priced for the quality. Nowadays it’s hard to find clothing in cotton or cotton/linen blends, so I really appreciate that it’s not made from synthetic fabric.
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Cuba, US
★★★★★ 4
Disappointing second one with a damaged zipper
Size: Medium, Color: Iceberg Green
This is maybe the 5th Drop linen dress I have purcahsed different version for my two girls and I and this is the second one I have received with a damaged zipper. It is disappointing they fit well and are well made . I am not sure if the last two I have received were returned items.
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Reviewed in the United States on February 12, 2026
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C. Crespo
Alexandria, US
★★★★★ 5
Nice quality
Size: XX-Large, Color: Black
Very nice fit and material. I’m a size 14 & the XXL fits well - maybe a tad bit big, but I didn’t want it to be fit uncomfortably tight either. My only complaint is that the side zipper gets stuck right where the pocket is. But I am able to put the dress on without having to open & close the Ipper.
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Reviewed in the United States on June 23, 2025
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shinday
Port Orchard, US
★★★★★ 5
Gorgeous
Size: Large, Color: Black
I bought 2 of these dresses, they are adorable. They are well made, fully lined, quality product. They fit so well and will be flattering on any figure. I’m 5’10”, the length is perfect. Well below the knee. A classic fit and cut
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Denise E.
Lowell, US
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Flattering fit, great feel, totally worth it
Size: Medium, Color: Black
I had to squeeze my girls in, but I made it work, lol! This was my first time shopping from The Drop and I was so suprised by the quality. It's definitely a heavy dress but I really love how it feels and fits on my body. For context, I ordered a medium, I'm 5'2", 155 lbs, 36DD, and 30in waist. It's tight on my bust but comfortable around my hips and waist, which isn't a big deal. The side zipper kills me though lol so beware, lots of twisting to get that thing shut. BUT still worth it. great dress.
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Reviewed in the United States on July 4, 2025

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