质子交换膜燃料电池不锈钢双极板直流氰化镀银，污染环境、耐蚀性不理想，为此，使用无氰脉冲镀银对不锈钢双极板进行了表面改性。采用XRD，SEM，界面接触电阻测试、模拟燃料电池环境腐蚀等方法，研究了无氰脉冲镀银对不锈钢双极极性能的影响。结果表明：无氰脉冲镀银改善了镀层的微观结构，其接触电阻为镀银处理前的1／10，同时腐蚀电流密度降低了1个数量级。
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