Synergistic effect of 8-aminoquinoline and ZnO as hybrid additives in alkaline electrolyte for Al-air battery
Synergistic effect of 8-aminoquinoline and ZnO as hybrid additives in alkaline electrolyte for Al-air battery
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8-氨基喹啉和ZnO作为混合添加剂在铝空气电池碱性电解液中的协同效应
DOI：
10.1016/j.molliq.2020.114946
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发表时间：
2021-01-15
影响因子：
6
通讯作者：
Lin, Tong
中科院分区：
文献类型：
--
作者：
Li, Xiaohui;Li, Jin;Lin, Tong
采用析氢试验和电化学测量方法研究了碱性铝空气电池用AA5052铝合金阳极的缓蚀性能。8-氨基喹啉（8-AQ）和氧化锌（ZnO）的杂化添加剂表现出良好的协同抑制效果。同时，铝阳极的电化学活性也得到了很大的提高。利用扫描电镜（SEM）和x射线能谱仪（EDS）对铝阳极放电前后的表面形貌进行了分析。利用傅里叶变换红外光谱揭示了混合添加剂的增效机理。杂化添加剂对析氢的阻滞是由于在铝表面形成了复合保护膜。该膜能有效提高铝阳极的放电性能，阳极利用率高达90.8%。(C) 2020 Elsevier B.V.版权所有
The mitigation of self-corrosion of commercial AA5052 Al alloy anode for alkaline Al-air batteries has been investigated using hydrogen evolution test and electrochemical measurement. The hybrid additives of 8-aminoquinoline (8-AQ) and zinc oxide (ZnO) exhibit excellent synergistic inhibition effect. Also, the electrochemical activity of Al anode is also substantially improved. Scanning electron microscope (SEM) and X-ray energy-dispersive spectrometer (EDS) are served for analyzing the surface topography of Al anode before and after discharge. Fourier transform infrared spectra are applied to reveal the synergistic mechanism of hybrid additives. The retardation of the hydrogen evolution by the hybrid additives is due to the formation of a compound protective film on the Al surface. The film can effectively enhance the discharge performance of Al anode and keep anodic utilization as high as 90.8%. (C) 2020 Elsevier B.V. All rights reserved.