Production method of catalyst, catalyst, production method of composition, composition, electrode, manufacturing method of electrode, fuel cell, metal-air battery

A production method of a composition, the method comprising:

• a step (a) of dissolving a metal complex in a solvent to prepare a solution;
• a step (b) of dispersing a conductive powder in the solution to prepare a dispersion liquid;
• and
• a step (c) of removing the solvent from the dispersion liquid, wherein a complex is formed by adsorbing the metal complex on a surface of the conductive powder to use the complex as a catalyst, and
• the method further comprises a step (d) of mixing the catalyst and a liquid medium;
• wherein the metal complex is a metal complex represented by Formula (11),
• in Formula (11), X1 to X8 are each independently a hydrogen atom or a halogen atom, D1, D3, D5, and D7 are each independently a nitrogen atom or a carbon atom, at least one of D1, D3, D5, and D7 is a carbon atom, a hydrogen atom or a halogen atom is bonded to the carbon atom, and M is a metal atom.

A manufacturing method of an electrode, the method comprising:

• a step (a) of dissolving a metal complex in a solvent to prepare a solution;
• a step (b) of dispersing a conductive powder in the solution to prepare a dispersion liquid;
• and
• a step (c) of removing the solvent from the dispersion liquid,
• wherein a complex is formed by adsorbing the metal complex on a surface of the conductive powder to use the complex as a catalyst, and
• the method further comprises:
• a step (d) of mixing the catalyst and a liquid medium;
• and
• a step (e) of applying a mixture of the catalyst and the liquid medium to a surface of a base material and removing the liquid medium;
• wherein the metal complex is a metal complex represented by Formula (11),
• in Formula (11), X1 to X8 are each independently a hydrogen atom or a halogen atom, D1, D3, D5, and D7 are each independently a nitrogen atom or a carbon atom, at least one of D1, D3, D5, and D7 is a carbon atom, a hydrogen atom or a halogen atom is bonded to the carbon atom, and M is a metal atom.