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Boreskov Institute of Catalysis of the Siberian Branch of Russian ...

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PP-IV-32electrodes with mixed oxide coating are examined. Thus in <strong>the</strong> case <strong>of</strong>Fe x O y·Co m O n /Fe x O y·Co m O n pair it amounts 1.77 V only, that is almost on 0.4 V or 20 % lowerin comparison with <strong>the</strong> traditional electrode material’s voltage value (variant 8).Figure. Electrolyzer voltage for electrode pairs<strong>of</strong> composition (cathode/anode):1. Steel/Steel; 2. Ni/Ni; 3. Ni-W29/Ni;4. Fe-Co20/Ni; 5. Fe-Co20/Steel;6. Fe-Co20/Fe-Co20; 7. Co-W40/Steel;8. Fe x O y·Co m O n /Fe x O y·Co m O nSuch an energy-saving effect is achieved due to <strong>the</strong> hydrogen evolution overvoltage declinefor <strong>the</strong> Fe-Co20/Fe-Co20 pair and <strong>the</strong> oxygen one – for <strong>the</strong> Co-W40/Steel andFe x O y·Co m O n /Fe x O y·Co m O n pairs.Electrolytic Fe-Co, Ni-W and Co-W alloy coating corrosion resistance investigation hasproved <strong>the</strong>se materials can be referred to resistant group <strong>of</strong> metals and alloys as far as inalkaline environment (рН 11) <strong>the</strong>ir corrosion deep indexes does not exceed 0.07 mm/hear.Such a property toge<strong>the</strong>r with <strong>the</strong> low electrolyzer voltage value allows recommendingsyn<strong>the</strong>sized coatings as electrode materials for hydrogen production by means <strong>of</strong> wateralkalineelectrolysis.453

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