Abstract: In order to obtain electrowinning copper anode materials with excellent electrocatalytical activity and corrosion resistance, the composite lead dioxide anode materials were prepared by doping Co and Mn, and the effect of current density on the performance of composite anode materials was investigated. The micro-morphology and elemental composition of the coating were characterized by scanning electron microscope (SEM) and X-ray energy dispersive spectrum (EDS); electrochemical methods such as linear scanning voltammetry (LSV), electrochemical impedance spectroscopy (EIS) and Tafel curves were employed to characterize the electrocatalytical activity and corrosion resistance of anode materials in electrowinning copper solution. Result shows that the anode material prepared at a low current density has smaller grain size and is granular, dense and uniform, presenting good electrocatalytical activity and corrosion resistance; according to comprehensive investigation, 5 mA·cm-2 is the best anode material preparation current density. Proper deposition current density can conduce to effectively controlling the deposition rate of PbO2, producing fine and uniform crystal grains, and increasing the specific surface area of the anode materials, and can ensure the doping amount of Co and Mn in the coating, essentially improving the electrocatalytical activity of the electrode materials. The formation of uniform and dense coating reduces the defects of electrode material, making the eletrode difficult to be corroded in the medium and exhibit good corrosion resistance.
刘圆圆, 余强, 陈阵, 朱薇, 胡琪, 郑昭毅, 尤红军, 吕泽, 陈帮耀. 电流密度对钴锰共掺杂二氧化铅阳极材料电化学性能的影响[J]. 材料导报, 2022, 36(18): 20100153-6.
LIU Yuanyuan, YU Qiang, CHEN Zhen, ZHU Wei, HU Qi, ZHENG Zhaoyi, YOU Hongjun, LYU Ze, CHEN Bangyao. Effect of Current Density on the Electrochemical Performance of Co Mn Co-doped Lead Dioxide Anode Materials. Materials Reports, 2022, 36(18): 20100153-6.
1 Moats Michael, Free Michael. Journal of Metals, 2007, 59(10), 34. 2 Zhang Z, Chen B M, Guo Z C, et al. Materials Reports A:Review Papers, 2016, 30(10), 112(in Chinese). 张璋,陈步明,郭忠诚,等.材料导报:综述篇, 2016, 30(10), 112. 3 Chen S, Chen B M, Wang S M, et al. Journal of Alloys and Compounds, 2019, 815, 152551. 4 Liu J H, Xu J, Han Z H. ECS Journal of Solid State Science and Technology, 2020, 9(4), 041012. 5 Zhu W, Chen Z, Yu Q, et al. Materials Reprots B: Research Papers, 2016, 30(7), 571(in Chinese). 朱薇,陈阵,余强,等. 材料导报:研究篇, 2016, 30(7), 57. 6 Yu B H, Xu R D, He S W, et al. Materials Chemistry and Physics, 2020, 247, 122536. 7 Suo L, Xu R D, He S W, et al. Acta Materiae Compositae Sinica, 2021, 38(2), 557(in Chinese). 孙利,徐瑞东,何世伟,等. 复合材料学报, 2021, 38(2), 557. 8 Zhang W, Liu M. Science Technology and Engineering, 2019, 19(13), 348(in Chinese). 张玮,刘淼. 科学技术与工程, 2019, 19(13), 348. 9 Isakhani-Zakaria M,Allahkaram S R, Ramezani-Varzaneh H A. Corrosion science, 2019,157(8), 472. 10 Wang X B, Xu R D, Feng S Y, et al. RSC Advances, 2020, 10(3), 1351. 11 Wang J Y, Zhang Y, Yang D D, et al. Guangzhou Chemical Industry, 2020, 48 (15), 7(in Chinese). 王佳奕,张媛,杨丹丹,等. 广州化工, 2020, 48(15), 7. 12 Sun P Z.Guangzhou Chemical Industry, 2018, 46(20), 24(in Chinese). 孙鹏哲. 广州化工, 2018, 46(20), 24. 13 Duan X Y, Zhao C M, Liu W, et al. Electrochimica Acta, 2017, 240, 424. 14 Han Y H, Zhang S T, Zhang X F, et al. International Journal of Electrochemical Science, 2020, 15, 3382. 15 Wang J, Xu R D, Yu B H, et al. Materials Reprots B: Research Papers, 2017, 31(4), 35(in Chinese). 王炯,徐瑞东,于伯浩,等. 材料导报:研究篇, 2017, 31(4), 35. 16 Liu S, Gui L, Peng R C, et al. Processes, 2020, 8(4), 1. 17 Zhang Y C, Guo Z C. Journal of Alloys and Compounds, 2017, 724, 103. 18 Du C L, Yan W, Yu Q, et al. Chemical Research and Application, 2017, 29(12), 1817(in Chinese). 杜重麟,闫文,余强,等. 化学研究与应用, 2017, 29(12), 1817. 19 Abbey C E,Moats M S. The Minerals, Metals & Materials Series, 2018, 125,1521. 20 Yang J, Chen B M, Hang H, et al. International Journal of Minerals, Metallurgy, and Materials, 2015, 22(11), 1205. 21 Barmi M J, Nikoloski A N. Hydrometallurgy, 2012, 129(1), 59. 22 Nikoloski A N, Barmi M J. Hydrometallurgy, 2013, 137, 45. 23 Maysam Mohammadi, Akram Alfantazi. Hydrometallurgy, 2015, 153, 134. 24 Li H X, Cui W R, Zhu W, et al. Chemical Research and Application, 2018, 30(2), 226(in Chinese). 李会喜,崔文蓉,朱薇,等. 化学研究与应用, 2018, 30(2), 226. 25 Wang S C, Chen B M, Huang H, et al. Materlals Scienec And Technology, 2018, 26(6), 89(in Chinese). 汪世川,陈步明,黄惠,等. 材料科学与工艺, 2018, 26(6), 89. 26 Velichenko A B,Amadelli R,Baranova E A, et al. Journal of Electroanalytical Chemistry, 2002, 527(1), 56. 27 Velichenko A B,Amadelli R,Baranova E A, et al. Russian Journal of Electrochemistry, 2003, 39(6), 615.
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2022, Vol. 36 
