NaOH溶液中糠醛对铝阳极腐蚀行为及活化性能的影响

发布时间：2018-04-17 16:30

本文选题：铝阳极 + 糠醛　；参考：《材料保护》2015年12期

【摘要】：为提高电池中铝阳极的活化性能及减缓其腐蚀,利用失重法、电化学法、腐蚀形貌观测等方法,研究了在4 mol/L Na OH溶液中添加糠醛(C5H4O2)对铝阳极(99.999%)腐蚀行为及活化性能的影响。结果表明:糠醛能抑制铝阳极的腐蚀,当糠醛的质量分数为1.0%时,失重法和阻抗法均测得铝的缓蚀率最高,分别为61.1%和55.8%,腐蚀表面均匀;当4 mol/L Na OH中添加1.0%糠醛时,在-1.20 V下铝阳极的电流密度高达178 m A/cm2,开路电位Eocp最负,为-1.87 V,活化性能有所改善。
[Abstract]:In order to improve the activation performance of aluminum anode in battery and to slow down its corrosion, the effect of furfural (C _ 5H _ 4O _ 2) added in 4 mol/L NaOH solution on the corrosion behavior and activation performance of aluminum anode was studied by weight-loss method, electrochemical method and corrosion morphology observation.The results show that furfural can inhibit the corrosion of aluminum anode. When the mass fraction of furfural is 1.0, the corrosion inhibition rate of aluminum is the highest, 61.1% and 55.8%, respectively, when the mass fraction of furfural is 1.0%, and the corrosion surface is uniform when 1.0% furfural is added to 4 mol/L NaOH.At -1.20 V, the current density of aluminum anode is up to 178 Ma / cm ~ 2, and the open circuit potential (Eocp) is the most negative, which is -1.87 V. the activation performance of the anode is improved.
【作者单位】：宜宾学院化学与化工学院;
【基金】：四川省科技厅项目(2015JY0112) 宜宾市科技局项目(2013ZSF007) 宜宾学院博士科研启动基金(2013QD04)资助
【分类号】：TG178

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