Corrosion behaviour and mechanism of nickel anode in SO42- containing molten Li2CO3-Na2CO3-K2CO3
Corrosion behaviour and mechanism of nickel anode in SO42- containing molten Li2CO3-Na2CO3-K2CO3
复制标题
镍阳极在含SO42熔融Li2CO3-Na2CO3-K2CO3中的腐蚀行为及机理
DOI:
10.1016/j.corsci.2020.108450
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发表时间:
2020-04
影响因子:
8.3
通讯作者:
Dihua Wang
中科院分区:
文献类型:
--
作者:
Peilin Wang;Kaifa Du;Yanpeng Dou;Hua Zhu;Dihua Wang
Aiming to develop a corrosion resistant anode for flue-gas capture and utilization, the effect of SO42−on the corrosion behaviour of nickel was systematically investigated under anodic polarization over a temperature range of 650−800 °C in molten Li2CO3-Na2CO3-K2CO3with 0–2 mol% SO42−. The corrosion of nickel is profoundly accelerated when the concentration of SO42-is over 0.1 mol% at 650 °C. Pitting corrosion and spallation of NiO film caused by the aggressive SO42−were identified. Interestingly, the resistance of nickel anode to pitting corrosion can be effectively enhanced by increasing electrolyte temperature.
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