Hydrogen-oxygen conductive corrosion-resistant coating and preparation method thereof
The invention discloses a preparation method of an oxyhydrogen conductive corrosion-resistant coating. The preparation method comprises the following steps: carrying out pretreatment on a bipolar plate material; performing surface electrochemical activation on the pretreated bipolar plate material;...
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| Hauptverfasser: | , , , , , , , , |
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| Format: | Patent |
| Sprache: | chi ; eng |
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| Zusammenfassung: | The invention discloses a preparation method of an oxyhydrogen conductive corrosion-resistant coating. The preparation method comprises the following steps: carrying out pretreatment on a bipolar plate material; performing surface electrochemical activation on the pretreated bipolar plate material; performing anode electrochemical conversion on the bipolar plate material subjected to surface electrochemical activation, and forming a metal oxide coating on the surface of the bipolar plate material, namely an oxyhydrogen conductive corrosion-resistant coating; and performing heat treatment on the bipolar plate material and the metal oxide coating on the surface of the bipolar plate material. The invention further discloses the oxyhydrogen conductive corrosion-resistant coating obtained through the preparation method, the oxyhydrogen conductive corrosion-resistant coating comprises titanium oxide, nickel oxide and manganese oxide, the corrosion current of the coating is smaller than or equal to 1 mu A/cm < 2 >, |
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