Catalysis by metal nanoparticles dispersed within a hierarchically porous carbon material
US-2016089657-A1 · Mar 31, 2016 · US
Carbon-based porous material and preparation method and use thereof
US11161745B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-11161745-B2 |
| Application number | US-201715779939-A |
| Country | US |
| Kind code | B2 |
| Filing date | May 26, 2017 |
| Priority date | Jul 22, 2016 |
| Publication date | Nov 2, 2021 |
| Grant date | Nov 2, 2021 |
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- Title
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Abstract
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The present disclosure relates to a carbon-based porous material microscopically exhibiting a three-dimensional cross-linked net-like hierarchical pore structures with micropores nested in mesopores that are in turn nested in macropores. Such material provides for accelerated adsorption and desorption rates and lower desorption temperatures for recovery of organic gas molecules.
First claim
Opening claim text (preview).
The invention claimed is: 1. A carbon-based porous material, having a structure of 3D hierarchical porous network microscopically, and having 500-2500 m 2 /g specific surface area and a water contact angle greater than 90°. 2. The carbon-based porous material according to claim 1 , wherein the content of macropores in the carbon-based porous material is 1-10%; the content of micropores is 20-65%, and/or the content of mesopores in the carbon-based porous material is 30-70%. 3. The carbon-based porous material according to claim 1 , wherein the specific surface area of the carbon-based porous material is 500-2300 m 2 /g; and/or the water contact angle of the carbon-based porous material is greater than 110°. 4. The carbon-based porous material according to claim 1 , wherein the specific surface area of the carbon-based porous material is 500-2300 m 2 /g, the content of mesopores is 30-70%, the carbon-based porous material exhibits a structure of 3D hierarchical porous network microscopically, the pore size of mesopores is 2-60 nm, and the most probable pore size is 1.7-3.8 nm, and the water contact angle of the carbon-based porous material is greater than or equal to 120. 5. The carbon-based porous material according to claim 1 , wherein the BJH adsorption average pore size of the carbon-based porous material is 1-7 nm, the most probable pore size is 1.7-3.8 nm, the ball-pan hardness number of the carbon-based porous material is not lower than 90%, and/or the crushing strength is not lower than 90 N/cm 2 . 6. The carbon-based porous material according to claim 1 , wherein the butane adsorption activity of the carbon-based porous material at normal temperature is greater than 15 g/100 g, the butane desorption efficiency of the carbon-based porous material is not lower than 55%, and/or the adsorption heat of the carbon-based porous material is not higher than 85° C., wherein the butane adsorption activity at normal temperature is measured with the test method defined in GB/T20449-2006.
Assignees
Inventors
Classifications
- B01J20/28064Primary
being in the range 500-1000 m2/g · CPC title
being in the range 2-50 nm, i.e. mesopores · CPC title
Processes for preparing, regenerating, or reactivating · CPC title
Use of binding agents; addition of materials ameliorating the mechanical properties of the produced sorbent · CPC title
Surface area, e.g. B.E.T specific surface area · CPC title
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Frequently asked questions
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- What does patent US11161745B2 cover?
- The present disclosure relates to a carbon-based porous material microscopically exhibiting a three-dimensional cross-linked net-like hierarchical pore structures with micropores nested in mesopores that are in turn nested in macropores. Such material provides for accelerated adsorption and desorption rates and lower desorption temperatures for recovery of organic gas molecules.
- Who is the assignee on this patent?
- China Petroleum & Chem Corp, Sinopec Res Institute Of Safety Engineering, Sinopec Res Institute Op Safety Engineering
- What technology area does this patent fall under?
- Primary CPC classification B01J20/28064. Mapped technology areas include Operations & Transport.
- When was this patent published?
- Publication date Tue Nov 02 2021 00:00:00 GMT+0000 (Coordinated Universal Time) (B2). Legal status and post-grant events are not shown on this page.
- What related patents are in patentsdb?
- We list 4 related publications on this page (citations in our corpus or others sharing the same primary CPC).