SKU: 18243563504

Py-urea-COF(water uptake COF)

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Description

Py-urea-COF(water uptake COF)Product Name NamePy urea COFwater uptake COF: span> 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

Product Name

Name:Py-urea-COF(water uptake COF:/span>


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: ~25.7 m2/g

Pore size:~17.88 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: 18243563504

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"rhino86oo"
Boise, US
★★★★★ 5
My Review...
Format: Paperback
This is a great addition to the Simpsons' book family. It is just like the show, but you can spend as much time reading it as you want. I think this book is extermly fuuny. I have read pretty much every Simpsons' book and this is worth being next with them. I love how the Simpsons' comedy is different than other cartoons and even shows. The comedy is not always dark but it is not always light either. "Little Shop of Homers" was a great finisher. I wish it would of been longer, but it is OK. As with most people, one of my favorite parts in the Simpsons' comics are the in between things. For example, "Moe's Guide To Superstitions", "Bart Simpson-Master Of Disguise presents The Quick 'N' Easy, Low-Budget Do-It-Yourself Guide To COOL COSTUMES". Well, that is all I can really say. I suggest Simpson fans should read this. Keep them coming and I will keep reading.. Have A Nice LiFE! Ryan
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Reviewed in the United States on September 12, 2000
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Daniel
Carnegie, US
★★★★★ 5
Best halloween special yet!
Format: Paperback
This is another of the many must have books for the true simpson fan. This book provides hours of laughs and would make a great gift. It has main stories, and in between shorts such as Springfield in #%*$, and a yocals guide to Halloween. I enjoy this book every time I pick it up, and you should to!
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Reviewed in the United States on May 12, 2000
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Adam Sandoval
Charlottesville, US
★★★★★ 5
Great characters!
Format: Paperback
A great story line that crosses over many different SW titles. I really enjoyed BT and 000 in Vader’s and Aphra’s titles, getting to see them in a great team like this is a real treat. With the Ewok TPB coming out soon, here’s hoping marvel continues making titles from the rich background characters of the world. And if there is a marvel exec out there, please give us a Jawa to follow!
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Reviewed in the United States on January 3, 2025
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Terri
West Palm Beach, US
★★★★★ 4
Serious and Funny at the Same time
Format: Paperback
3-4 ABY This graphic novel is four issues and fills the reader in on events during a special Star Wars Crossover called Dark Droids, of which includes issues from Star Wars (2020), Doctor Aphra, Darth Vader, and Bounty Hunters. In D-Squad, R2-D2 is on a mission to find a way to save his friend, C-3PO, who has been taken over by the Spark Eternal. Apparently, droids are far easier to corrupt than organic life forms, and the Spark makes its way through many droids. Along the way, R2 finds a mis-matched crew of droids to help bring the Spark's scourge to an end. Ultimately seeking the help of Ajax Sigma, a droid from the High Republic era whose core is later found by Han and Chewbacca, and he is rebuilt in the age of the Empire. R2 believes Ajax's core and experience over various centuries might be enough to end the Spark's scourge. I love the art in this collection. One can't really go wrong with droids. We get some fan favorites from across the various series, as well as some new characters and old friends. The dialogue is, as you can imagine between beep-booping droids, quite top tier. Overall, it was a really fun edition and setup for the crossover.
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Reviewed in the United States on May 7, 2024
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Josh
Lowell, US
★★★★★ 2
Comic story is great, but actual comic arrived in terrible condition
Format: Paperback, Format: Paperback
Book arrived bent and warped. Same package contained two comics but only this one was warped. The paperback covers are also a centimeter too short width wise on both front and back.
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Reviewed in the United States on March 6, 2024

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