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Porous carbon, catalyst carrier, and method for producing porous carbon

A manufacturing method and technology of porous carbon, applied in the field of porous carbon, can solve problems such as difficult to retain mesopores, difficult to control fine pores, and impossibility of realization

Pending Publication Date: 2022-04-19
TOYOTA JIDOSHA KK
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0011] However, in Japanese Patent Application Laid-Open No. 2004-525846, although the structure of the mesoporous silica used as the mold can be controlled, it is not possible to control the structure of carbon while transferring the mold.
In addition, for the structure of spherical mesoporous silica used as a casting mold, it is difficult to control the fine pores, for example, it is difficult to leave mesopores depending on the amount of TMB added.

Method used

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  • Porous carbon, catalyst carrier, and method for producing porous carbon
  • Porous carbon, catalyst carrier, and method for producing porous carbon
  • Porous carbon, catalyst carrier, and method for producing porous carbon

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1～3

[0131] "Examples 1-3, Comparative Example 1"

[0132]

[0133] As the chain-shaped silica used as the casting mold, the chain-shaped silica having the average length shown in Table 1 using silica particles having the particle sizes shown in Table 1 was prepared.

[0134] In chain silica, sugar alcohol (FA) as a carbon source and 1,3,5-trimethylbenzene (TMB) as a pore-forming agent were blended in such a volume ratio as shown in Table 1, and prepared Raw material dispersion.

[0135] 【Table 1】

[0136]

[0137]

[0138] The adjusted raw material dispersion was polymerized at 60°C for 16 hours, and the temperature was raised to 80°C and polymerized for 16 hours, thereby obtaining furan resin and 1,3,5-trimethylbenzene on the surface of chain silica. (TMB) complex.

[0139]

[0140] The obtained composite in which the furan resin and TMB were arranged on the surface of the chain silica was fired at 800° C. for 1 hour to carbonize the furan resin and remove TMB to obta...

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Abstract

The invention relates to porous carbon, a catalyst support, and a method for producing porous carbon. When producing porous carbon, a pore-forming agent and a carbon source are introduced together into spherical silica that forms a mold, then polymerization and carbonization of the carbon source are performed, and finally the spherical silica that forms the mold is removed.

Description

technical field [0001] The present invention relates to a porous carbon, a catalyst carrier and a method for producing porous carbon. Background technique [0002] There is known a fuel cell that generates electricity by chemically reacting an anode gas such as hydrogen with a cathode gas such as oxygen. [0003] A fuel cell supplies an anode gas (fuel gas) such as hydrogen and a cathode gas (oxidant gas) such as oxygen to two electrically connected electrodes, and electrochemically oxidizes the fuel, thereby directly converting chemical energy into electrical energy. [0004] Such a fuel cell is generally constituted as a battery pack in which a plurality of unit cells having a basic structure of a membrane-electrode assembly sandwiching an electrolyte membrane between a pair of electrodes are stacked. In particular, a solid polymer electrolyte fuel cell using a solid polymer electrolyte membrane as an electrolyte membrane has the advantages of being easy to miniaturize an...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01M4/90C01B32/05
CPCH01M4/9083C01B32/05C01P2006/12C01P2006/14C01P2006/16B01J23/42B01J21/18B01J37/0018B01J37/084B01J35/40B01J35/51B01J35/618B01J35/638B01J35/647B01J35/45C01P2004/64
Inventor 王宇楠井元瑠伊大西智弘横井俊之
Owner TOYOTA JIDOSHA KK