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Method for making a hydrophilic corrosion resistant coating on low grade stainless steel/alloys for bipolar plates
Method for making a hydrophilic corrosion resistant coating on low grade stainless steel/alloys for bipolar plates
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机译:在用于双极板的低等级不锈钢/合金上制备亲水性耐腐蚀涂层的方法
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摘要
A stainless steel flow field plate for a fuel cell that includes a layer of titanium or titanium oxide and a layer of titanium oxide/ruthenium oxide that makes the plate conductive and hydrophilic. In one embodiment, titanium is deposited on the surface of a stainless steel bipolar plate as a metal or an oxide using a suitable process, such as PVD or CVD. A solution of ruthenium chloride in ethanol is brushed on the titanium layer. The plate is then calcinated to provide a dimensionally stable titanium oxide/ruthenium oxide layer on the stainless steel that is hydrophilic and electrically conductive in the fuel cell environment.
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