Статья
2019

Effect of Additive DCTA on Electrochemical Tunnel Etching of Aluminum Foil


 Yuanlong Xiao Yuanlong Xiao , Fengrong He Fengrong He , Xia Zhang Xia Zhang , Yungang Xiang Yungang Xiang , Kai Yu Kai Yu , Xiangjun Luo Xiangjun Luo , Genpin Lyu Genpin Lyu
Российский электрохимический журнал
https://doi.org/10.1134/S1023193519090131
Abstract / Full Text

The effect of additive DCTA (1,2-diaminocyclohexane-tetraacetic acid) to HCl + H2SO4 solution on electrochemical tunnel etching behavior of aluminum foil was investigated. The results show that DCTA can activate Al foil surface by decreasing the self-corrosion potential and breakdown potential, which may be attributed to that DCTA forms chelate with dissolved Al3+, thus suppressing the oxide film formation. The tunnel density and effective tunnel number as well as uniformity of tunnel length of etching foil can be increased after DCTA addition. Furthermore, the specific capacitance of etching foil can be enhanced with trace addition of DCTA.

Author information
  • Ruyuan Yao Autonomous Dongyangguang Industrial Development Co., Ltd., 512721, Shaoguan, China

    Yuanlong Xiao, Xiangjun Luo & Genpin Lyu

  • Department of Chemical Engineering, Sichuan University, 610065, Chengdu, China

    Yuanlong Xiao

  • Institute of Technology Research and Development of Electronic Materials, Shenzhen Dongyangguang Industrial Development Co., Ltd., 523871, Dongguan, China

    Fengrong He, Xia Zhang, Yungang Xiang & Kai Yu

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