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| Green Electrodeposition of Zinc from Novel Low-temperature Molten Salts |
| Received:December 03, 2015 Revised:December 08, 2015 |
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| DOI：doi：10.3969/j.issn.1007-7545.2016.05.002 |
| KeyWord:zinc; electrodeposition; zinc oxide; low-temperature molten salts |
| Author | Institution |
| ZHENG Yong |
安阳工学院 化学与环境工程学院 |
| ZHENG Yong-jun |
安阳工学院 化学与环境工程学院 |
| PENG Cong-hu |
安阳工学院 化学与环境工程学院 |
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| Abstract: |
| Novel low-temperature molten salts forming between choline chloride and urea were synthesized and characterized. Dissolution process of zinc oxide, relative ionic structure in choline chloride/urea, and electrochemical reduction reaction rule of zinc were investigated. The effects of temperature, potential and Zn(II) concentration on surface morphology, crystal pattern and purity of zinc deposits were analyzed. The results show that smooth, dense and homogeneous zinc coatings with preferred crystallographic orientation of (002) on copper substrates can be obtained under the conditions including Zn(II) concentration of 0.3~0.5 mol/L, temperature of 313.2~343.2 K, and potential of ?0.3~?0.6 V. Not only improving quality and purity of zinc coatings, this new technique also can be applied in zinc electrorefining, production of zinc alloys and functional materials. |
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