<input id="68khf"></input>
<li id="68khf"><s id="68khf"><strong id="68khf"></strong></s></li>
<li id="68khf"></li>
  • <li id="68khf"><ins id="68khf"></ins></li>
    推广 热搜:   ipc  电镀厂  彩涂  电镀  防腐  镀镍  研讨会  化学镀  封闭 

    190406-氧气对聚苯胺/316L 不锈钢体系耐腐蚀性能的影响

       作者:姜文印,周婉秋,等    单位:沈阳师范大学化学化工学院    日期:2019-03-01     浏览:95    评论:0    
    提示:中文核心期刊,中国科技核心期刊! DOI: 10.19289/j.1004-227x.2019.04.006氧气对聚苯胺/316L 不锈钢体系耐腐蚀性能的影响姜文印

    中文核心期刊,中国科技核心期刊!   



    DOI: 10.19289/j.1004-227x.2019.04.006

    氧气对聚苯胺/316L 不锈钢体系耐腐蚀性能的影响

    姜文印,周婉秋*,赵玉明,刘晓安,辛士刚,康艳红(沈阳师范大学化学化工学院,辽宁 沈阳 110034)

    摘要:为了防止不锈钢双极板在?#39318;?#20132;换膜燃?#31995;?#27744;(PEMFC)工作环境下发生腐蚀,在由0.1 mol/L 苯胺单体与0.2 mol/L H2SO4组成的水溶液中采用循环伏安法在316L 不锈钢(SS)表面电化学合成了导电聚苯胺(PANI)薄膜。采用傅里叶变换红外光谱(FT-IR)分析了PANI 的化学结构,采用扫描电镜(SEM)观察了表面形貌,发现所合成的PANI 具有苯−醌交替的中间氧化态结构,PANI 膜呈现纤维状形貌特征。采用极化曲线和电化学阻抗谱(EIS)对比研究了在0.2 mol/L H2SO4 中氧气对PANI/316L SS 和无涂层316L SS 耐腐蚀性能的影响。结果表明,氧气促进了PANI/316L SS 界面处保护性氧化膜的形成,使PANI/316L SS 体系的耐腐蚀性能提高。

    关键词:?#39318;?#20132;换膜燃?#31995;?#27744;;双极板;不锈钢;聚苯胺;电化学合成;循环伏安法;耐蚀性;氧

    中图分类号:TQ153.3 

    文献标志码:A 

    文章编号:1004 – 227X (2019) 04 – 0166 – 08

    Effect of oxygen gas on corrosion resistance of polyaniline/316L stainless steel system // JIANG Wen-yin,ZHOU Wan-qiu*, ZHAO Yu-ming, LIU Xiao-an, XIN Shi-gang, KANG Yan-hong

    Abstract:In order to prevent stainless steel bipolar plates from corrosion under PEMFC (proton exchange membrane fuel cell) working environment, electrosynthesis was performed on the surface of 316L stainless steel (SS) in an aqueous solution composed of 0.1 mol/L aniline and 0.2 mol/L H2SO4 by cyclic voltammetry. The chemical structure of polyaniline (PANI)was analyzed by Fourier-transform infrared spectroscopy (FT-IR). The surface morphology was observed by scanning electron microscopy (SEM). It was found that the synthesized polyaniline was in an alternating benzene–quinone intermediate oxidation state, and the PANI film showed a fibrous morphology. The effect of oxygen on corrosion resistance of PANI/316L SS and uncoated 316L SS in 0.2 mol/L H2SO4 was studied by polarization curve measurement and electrochemical impedance spectroscopy (EIS). The results showed that oxygen promoted the formation of protective oxide film at the interface of PANI/316L SS, which improved the corrosion resistance of PANI/316L SS system.

    Keywords: proton exchange membrane fuel cell; bipolar plate; stainless steel; polyaniline; electrosynthesis; cyclic voltammetry; corrosion resistance; oxygen

    First-author’s address: College of Chemistry and Chemical Engineering, Shenyang Normal University, Shenyang 110034, China

    PDF全文下载,请点击“此处”

     
    打赏
     
    更多>同类镀涂课堂
    0相关评论

    推荐图文
    推荐镀涂课堂
    点击排行
    网站首页  |  会员升级  |  关于我们  |  联系方式  |  使用协议  |  版权隐私  |  网站地图  |  排名推广  |  RSS订阅  |  违规举报  |  粤ICP备10003697号
     
    安徽快三1000期
    <input id="68khf"></input>
    <li id="68khf"><s id="68khf"><strong id="68khf"></strong></s></li>
    <li id="68khf"></li>
  • <li id="68khf"><ins id="68khf"></ins></li>
    <input id="68khf"></input>
    <li id="68khf"><s id="68khf"><strong id="68khf"></strong></s></li>
    <li id="68khf"></li>
  • <li id="68khf"><ins id="68khf"></ins></li>