ELECTRODE COMPRISING COMPOSITE METAL OXIDE CATALYST FOR WATER ELECTROLYSIS METHOD FOR PREPARING SAME AND WATER ELECTROLYSIS COMPRISING SAME

The present invention provides a water electrolysis electrode having a low overvoltage and excellent catalytic activity, a method for manufacturing the same, and a water electrolysis device including the same. The water electrolysis electrode of the present invention includes a catalyst layer includ...

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Bibliographische Detailangaben
Hauptverfasser:	PARK SUNG MIN, LEE JOO YOUNG, JEONG JAE YEOP, YANG JU CHAN, JEONG JAE HOON, NOH YU SEONG, PARK YOO SEI, PARK YU JIN, JANG MYEONG JE, CHOI SUNG MOOK, CHOI MIN KWAN
Format:	Patent
Sprache:	eng ; kor
Schlagworte:	APPARATUS THEREFOR CHEMISTRY ELECTROLYTIC OR ELECTROPHORETIC PROCESSES ELECTROLYTIC OR ELECTROPHORETIC PROCESSES FOR THE PRODUCTIONOF COMPOUNDS OR NON-METALS METALLURGY
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Beschreibung
Zusammenfassung:	The present invention provides a water electrolysis electrode having a low overvoltage and excellent catalytic activity, a method for manufacturing the same, and a water electrolysis device including the same. The water electrolysis electrode of the present invention includes a catalyst layer including a composite metal oxide and having a three-dimensional nanosheet structure, and an electrode substrate. The method for manufacturing a water electrolysis electrode of the present invention includes the steps of: immersing the electrode substrate in an electrolyte containing a metal oxide precursor; applying a voltage to electrodeposit a composite metal hydroxide; and annealing to form a composite metal oxide. The water electrolysis device of the present invention includes the water electrolysis electrode according to the present invention as a positive electrode. 본 발명은 과전압이 낮고 촉매 활성이 뛰어난 수전해전극, 그 제조방법 및 그를 포함하는 수전해장치를 제공한다. 본 발명의 수전해전극은 복합 금속 산화물을 포함하고, 입체 나노시트 구조를 갖는 촉매층 및 전극 기재를 포함한다. 본 발명의 수전해전극의 제조방법은 금속 산화물 전구체를 포함하는 전해액에 전극 기재를 침지하고, 전압을 인가하여 복합 금속 수산화물을 전착한 다음, 어닐링하여 복합금속산화물을 형성하는 단계를 포함한다. 본 발명의 수전해장치는 본 발명에 따른 수전해전극을 양극으로 포함한다.