Porous carbon material, method for producing same, and synthesis reaction catalyst

Patent metadata

Field	Value
Publication number	US-11504697-B2
Application number	US-201716335340-A
Country	US
Kind code	B2
Filing date	Sep 12, 2017
Priority date	Sep 26, 2016
Publication date	Nov 22, 2022
Grant date	Nov 22, 2022

Abstract

A porous carbon material,wherein a half width (2θ) of a diffraction peak (10×) (38° to 49°) by X-ray diffraction is 4.2° or less, andwherein a ratio (mesopore volume/micropore volume) of a mesopore volume (cm3/g) measured by a BJH method to a micropore volume (cm3/g) measured by a HK method is 1.20 or more.

First claim

The invention claimed is:

1. A porous carbon material,
wherein a half width (2θ) of a diffraction peak (10×) (38° to 49°) by X-ray diffraction is 4.2° or less, wherein 10× means a pseudo peak observed in the vicinity of the 101 plane in graphite, and
wherein a ratio (mesopore volume/micropore volume) of a mesopore volume (cm 3 /g) measured by a BJH method to a micropore volume (cm 3 /g) measured by a HK method is 1.20 or more, but 2.00 or less.

2. The porous carbon material according to claim 1 , wherein the porous carbon material is derived from a plant.

3. The porous carbon material according to claim 1 , wherein the porous carbon material is derived from chaff.

4. The porous carbon material according to claim 1 , wherein the porous carbon material is a carrier for a catalyst.

5. A method for producing the porous carbon material according to claim 1 , the method comprising:
removing, from a raw material containing a silicon component, the silicon component by an acid treatment or an alkali treatment, and then performing a carbonization treatment.

6. The method for producing the porous carbon material according to claim 5 , wherein an activation treatment is performed after the carbonization treatment.

7. The method for producing the porous carbon material according to claim 6 , wherein a heat treatment is performed after the activation treatment.

8. The method for producing the porous carbon material according to claim 7 , wherein a temperature of the heat treatment is 1,200° C. or higher.

9. The method for producing the porous carbon material according to claim 5 , wherein a temperature of the carbonization treatment is 600° C. or higher.

10. A method for producing the porous carbon material according to claim 1 , the method comprising:
performing a carbonization treatment on a raw material containing a silicon component, then removing the silicon component from an obtained carbonized product by an acid treatment or an alkali treatment, and then performing an activation treatment.

11. The method for producing the porous carbon material according to claim 10 , wherein a heat treatment is performed after the activation treatment.

12. The method for producing the porous carbon material according to claim 11 , wherein a temperature of the heat treatment is 1,200° C. or higher.

13. The method for producing the porous carbon material according to claim 10 , wherein a temperature of the carbonization treatment is 600° C. or higher.

14. A synthesis reaction catalyst comprising:
the porous carbon material according to claim 1 ; and
a metal or a metal compound carried on the porous carbon material.

15. The synthesis reaction catalyst according to claim 14 , wherein the metal or the metal compound palladium.

16. A porous carbon material,
wherein the porous carbon material is subjected to heat treatment at a temperature of 1,200° C. or higher,
wherein the porous carbon material exhibits the following properties after heat treatment:
(a) a half width (2θ) of a diffraction peak (10×) (38° to 49°) by X-ray diffraction is 4.2° or less, wherein 10× means a pseudo peak observed in the vicinity of the 101 plane graphite, and
(b) a ratio (mesopore volume/micropore volume) of a mesopore volume (cm 3 /g) measured by a Bill method to a micropore volume (cm 3 /g) measured by a HK method is 1.20 or more, but 2.00 or less.

Assignees

• Dexerials Corp

Inventors

• Tanba Katsuya
• Okuda Yoshiharu
• Kuroda Teiko

Classifications

• B01J37/0215

  Coating · CPC title

• C07C5/08

  of carbon-to-carbon triple bonds · CPC title

• C07B61/00

  Other general methods · CPC title

• C07C15/18

  containing at least one group with formula[IMAGE cpc-sch-C07C-0954.gif] · CPC title

• C01P2006/14

  Pore volume · CPC title