Corrosion Resistance of Titanium Bipolar Plate Enhanced by TiN Film
To improve the corrosion resistance of titanium(Ti)bipolar plate,titanium nitride(TiN)film was prepared on the surface of commercial TA1 pure titanium by magnetron reactive sputtering and pulse laser deposition(PLD)techniques,and the film prepared under different process parameters were evaluated.Results show that dense and complete TiN film can be obtained on TA1 surface under different preparation processes,and the corrosion current density of Ti substrate significantly increases.However,the composition of the film prepared by magnetron reactive sputtering is affected by the oxygen competition reaction,and its homogeneity is inferior to that of the film prepared by PLD.The comprehensive performance of the PLD-prepared film shows excellent characteristics in the terms of low corrosion current density(0.025 μA·cm-2),moderate corrosion overpotential(-0.106 V),and good hydrophobicity.
proton exchange membrane water electrolyzerbipolar plateprocess parameterTiN filmcorrosion resistance
邓真桢、戴正飞、伍维博、来睿思、冯庆、贾波、王琛、吕源江、马飞
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西安交通大学金属材料强度国家重点实验室,陕西西安 710049
西安泰金工业电化学技术有限公司,陕西西安 710021
质子交换膜水电解槽 双极板 工艺参数 TiN薄膜 耐蚀性能
National Key Research and Development Program of China
NETL
NSTL
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