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| Preparation of Pb/3D-PbO2 by Electrochemcial Anodization |
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Received:September 25, 2018
Revised:September 28, 2018
Accepted:September 29, 2018
Published Online:December 21, 2018
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| DOI：doi：10.3969/j.issn.1007-7545.2019.01.001 |
| KeyWord:Pb/PbO2; porous structure; anodization; etchant |
| Author | Institution |
| WANG Rui-xiang |
江西理工大学 冶金与化学工程学院,江西赣州 |
| CHEN Fang-hui |
江西理工大学 冶金与化学工程学院,江西赣州 |
| ZHANG Bin |
江西理工大学 冶金与化学工程学院,江西赣州 |
| ZHONG Xiao-cong |
江西理工大学 冶金与化学工程学院,江西赣州 |
| XU Zhi-feng |
江西理工大学 冶金与化学工程学院,江西赣州 |
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| Abstract: |
| Introduction of porous substrate is an effective method to improve bond stability between Pb substrate and oxide coating of lead-based composite anodes. Porous PbO2 structure was constructed on surface of Pb by potentiostatic anodization technique. Effects of etchants (ammonium chloride, ammonium fluoride, ammonium acetate and ammonium oxalate) on morphology of PbO2 structure were studied to select ammonium fluoride as etchant due to uniform holes in PbO2 structure. Furthermore, effects of anodization voltage, temperature, water concentration, ammonium fluoride concentration, and anodization time on morphology of PbO2 structure were investigated. Pb/3D-PbO2 structure with relatively uniform holes can be constructed on Pb surface under the optimum conditions including anodization voltage of 15 V, temperature of 25 ℃, water concentration of 1.25%, ammonium fluoride concentration of 0.3 g for 100 mL ethylene glycol, and anodization time of 6 h. |
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