ELECTROLYTIC HYDROGEN PRODUCTION SYSTEM, AND METHOD FOR PRODUCING THE SAME

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PROBLEM TO BE SOLVED : To provide a technique where the electrolytic precipitates of a rare element(s) FP or a rare element(s) are utilized as a catalyst electrode for producing hydrogen, and hydrogen is efficiently produced from an electrolytic solution such as an alkali aqueous solution and seawater. SOLUTION : In the electrolytic hydrogen production system, an electrolytic solution such as an alkali aqueous solution or seawater is electrolyzed between an anode and a cathode, and hydrogen is generated, so as to be produced. In the electrolytic hydrogen production system 30, the cathode 32 is an electric precipitation electrode in which at least one rare element selected from ruthenium (Ru), rhodium (Rh), palladium (Pd) and technetium (Tc), and rhenium (Re) as a rare element is precipitated, and the electric precipitation electrode is used for the cathode as a catalyst electrode. COPYRIGHT : (C)2007, JPO&INPIT