| 抛光液对304钢在模拟PEMFC阳极环境中电化学行为的影响 |
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| 引用本文： | 黄乃宝,梁成浩,郭华.抛光液对304钢在模拟PEMFC阳极环境中电化学行为的影响[J].腐蚀科学与防护技术,2009,21(2):218-220. |
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| 作者姓名： | 黄乃宝 梁成浩 郭华 |
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| 作者单位： | 大连海事大学腐蚀控制与电化学工程研究所,大连,110026 |
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| 基金项目： | 国家高技术研究发展计划(863计划)，大连海事大学青年教师科研项目 |
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| 摘 要： | 利用电化学测试技术研究了304不锈钢经不同浓度的柠檬酸、硝酸、双氧水和硝酸铁四种溶液化学抛光后在模拟质子交换膜燃料电池(PEMFC)阳极环境中的电化学行为.结果表明，经上述四种溶液抛光后，304不锈钢在模拟PEMFC阳极环境中的耐蚀性均可提高一个数量级.即使极化到0.8 V，腐蚀电流密度分别降低到25.69、8.3、21.39和24.44 μA/cm2，接近美国能源部要求的16 μA/cm2.硝酸和双氧水由于具有氧化作用使不锈钢表面钝化而降低腐蚀电流密度，而柠檬酸和硝酸铁能使不锈钢表面发生选择性溶解，形成富铬表面层而增强耐蚀性.
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| 关 键 词： | 质子交换膜燃料电池(PEMFC) 双极板 柠檬酸 选择性溶解 |
| 收稿时间： | 2008-06-30 |
| 修稿时间： | 2008-10-06 |
INFLUENCE OF POLISHING SOLUTION ON ELECTROCHEMICAL BEHAVIOR OF 304SS IN A SIMULATED PEMFC ANODE ENVIRONMENT |
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| HUANG Nai-bao,LIANG Cheng-hao,GUO Hua.INFLUENCE OF POLISHING SOLUTION ON ELECTROCHEMICAL BEHAVIOR OF 304SS IN A SIMULATED PEMFC ANODE ENVIRONMENT[J].Corrosion Science and Protection Technology,2009,21(2):218-220. |
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| Authors: | HUANG Nai-bao LIANG Cheng-hao GUO Hua |
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| Affiliation: | Institute of Corrosion Control and Electrochemical Engineering;Dalian Maritime University;Dalian 116026 |
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| Abstract: | 304 stainless steel was chemically polished with solutions such as citric acid,nitric acid,hydrogen peroxide and ferric nitrate respectively,of which the corrosion performance was then studied in a simulated PEMFC anode environment by electrochemical means.The results indicated that the corrosion current density of the polished steel was decreased one order of magnitude.The optimal concentration of the polishing solutions was 1%,60%,10% and 1% for the above polishing solutions respectively.The corrosion cur... |
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| Keywords: | PEMFC(proton exchange membrane fuel cell) bipolar plate citric acid selective dissolution |
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