Method for producing carrier for electrode catalyst, precursor of carrier for electrode catalyst, and carrier for electrode catalyst, comprising same

A method for preparing a support for an electrode catalyst comprising:

• preparing a carbon support;
• forming a first polymer layer on a surface of the carbon support, said first polymer layer comprising a first polymer having a charge;
• forming a second polymer layer on the first polymer layer, said second polymer layer comprising a second polymer having a charge which is opposite to the charge of the first polymer;
• and
• carbonizing the first polymer layer and the second polymer layer,
• wherein the first polymer and the second polymer independently comprise an aromatic compound including a heteroatom, and
• the first polymer or the second polymer comprises a pyridine group,
• wherein the first polymer is a cationic polymer, and the second polymer is an anionic polymer,
• wherein the forming of the first polymer layer is carried out by coating a solution comprising the first polymer and a solvent on the surface of the carbon support, and the solution further includes at least one acid among hydrochloric acid, nitric acid and sulfuric acid, and
• wherein the carbonizing of the first polymer layer and the second polymer layer is carried out for 30 minutes to 2 hours at a temperature of 800° C. to 2,000° C. under an inert gas atmosphere.