The present invention relates to an electrode for electrolysis of ballast water for sterilizing the ballast water, comprising at least one selected from a metal mesh, a metal foam, and a metal plate, wherein a Pt-Ru-Ti catalyst layer is located on the metal mesh, a molar ratio of Pt:Ru of the catalyst layer is 1:9 to 9:1, a molar ratio of (Pt:Ru):Ti is 1:1 to 3, and an amount of a Pt-Ru-Ti catalyst loaded on the electrode for electrolysis is 0.5 to 5 mg/cm^2. The electrode for electrolysis of ballast water according to the present invention does not reduce chlorine oxidation efficiency even in competition with water oxidation and shows selectivity of 98 % or greater for generation of active chlorine species. In addition, since the catalyst layer is manufactured by reducing a content of a noble metal, there is an advantage in that economic efficiency of the catalyst may be secured.

    본 발명은 선박평형수를 살균 처리하기 위한 선박평형수 전기분해용 전극에 있어서, 메탈 메쉬, 메탈 폼 및 메탈 플레이트에서 선택된 하나 이상을 포함하고, 이들 상부에는 Pt, Ru 및 Ti 촉매층이 위치하며, 상기 촉매층의 Pt:Ru의 조합 몰비는 1:9 내지 9:1, (Pt:Ru):Ti의 몰비는 1: 1 내지 3이며, 상기 전기분해용 전극에 로딩된 Pt, Ru 및 Ti 촉매량은 0.5 내지 5 mg/cm2을 포함하는 것을 특징으로 하는 선박평형수 전기분해용 전극에 관한 것이다. 본 발명에 따른 선박평형수 전기분해용 전극은 물 산화와의 경쟁에도 염소산화 효율이 저하되지 않고 활성염소종 생성에 대해 98% 이상의 선택성을 보인다. 또한, 귀금속의 함량을 줄여 촉매층을 제조하므로 촉매의 경제성을 확보할 수 있는 장점이 있다.


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    Title :

    Pt-Ru-Ti Pt-Ru-Ti catalyst electrode for ballast water electrolysis


    Additional title:

    선박평형수 전기분해용 Pt-Ru-Ti 촉매 전극


    Contributors:

    Publication date :

    2023-06-20


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Korean


    Classification :

    IPC:    C02F Behandlung von Wasser, Schmutzwasser, Abwasser oder von Abwasserschlamm , TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE / B63J Hilfsanlagen auf Schiffen , AUXILIARIES ON VESSELS



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