Abstract: An anti-biofouling method which suppresses biofouling in water includes a preparation step of using a copper alloy-made anti-biofouling object member immersed in the water as a cathode electrode, and immersing and arranging an anode electrode member serving as a counter electrode of the anti-biofouling object member in the water, and a current supplying step of supplying DC current between the anti-biofouling object member and the anode electrode member.

Abstract: This invention provides a catalyst material comprising a conductive material coated with a polynuclear complex molecule derived from at least two types of heteromonocyclic compounds and a catalyst metal coordinated to the coating layer of the polynuclear complex molecule, and a catalyst material comprising a conductive material coated with a polynuclear complex molecule derived from a heteromonocyclic compound and a catalyst metal, which is a composite of a noble metal and a transition metal, coordinated to the coating layer of the polynuclear complex molecule. Such catalyst material of the invention has excellent catalytic performance and serviceability as, for example, an electrode of fuel cells.

Abstract: A catalyst material that bears active species densely, thereby having higher catalytic performance and serviceability, for example, as an electrode for fuel cells. A catalyst material, wherein a conductive material whose surface physically adsorbs a polymerizable ligand having an electrochemically polymerizable heterocycle and an electron-withdrawing group bonded to the heterocycle or is coated with polynuclear complex molecules formed by electrochemical polymerization of the polymerizable ligand having an electrochemically polymerizable heterocycle and an electron-withdrawing group bonded to the heterocycle. A catalytic metal is coordinated to the adsorption layer of the polymerizable ligand having an electrochemically polymerizable heterocycle and an electron-withdrawing group bonded to the heterocycle, or to the coating layer of the polynuclear complex molecules.

Abstract: The present invention is intended to provide a catalyst material that supports active species densely, thereby having higher catalytic performance and serviceability as, for example, an electrode for fuel cells. To achieve the above object, the present invention provides a process for preparing a catalyst material, including: an electrochemical polymerization step of electrochemically polymerizing a heteromonocyclic compound so that the surface of a conductive material is coated with polynuclear complex molecules derived from the heteromonocyclic compound; and a metallation step of coordinating a catalytic metal to the coating layer of the polynuclear complex molecules, characterized in that the potential applied in the electrochemical polymerization is 0.8 to 1.5 V.

Abstract: This invention provides a catalyst material comprising a conductive material coated with a polynuclear complex molecule derived from at least two types of heteromonocyclic compounds and a catalyst metal coordinated to the coating layer of the polynuclear complex molecule, and a catalyst material comprising a conductive material coated with a polynuclear complex molecule derived from a heteromonocyclic compound and a catalyst metal, which is a composite of a noble metal and a transition metal, coordinated to the coating layer of the polynuclear complex molecule. Such catalyst material of the invention has excellent catalytic performance and serviceability as, for example, an electrode of fuel cells.