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| Effect of Benzylideneacetone on Zinc Electrodeposition in Zn(II)-NH3-NH4Cl Solution |
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Received:May 06, 2015
Revised:May 11, 2015
Accepted:May 12, 2015
Published Online:October 19, 2015
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| DOI：doi：10.3969/j.issn.1007-7545.2015.11.001 |
| KeyWord:zinc; NH3-NH4Cl solution; benzylideneacetone; electrodeposition |
| Author | Institution |
| YANG Sheng-hai |
冶金与环境学院 |
| DUAN Liang-hong |
冶金与环境学院 |
| XIA Zhi-mei |
冶金与环境学院 |
| CHEN Yong-ming |
冶金与环境学院 |
| TANG Chao-bo |
冶金与环境学院 |
| HE Jing |
冶金与环境学院 |
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| Abstract: |
| The effects of benzylideneacetone on zinc deposition from Zn (II)-NH3-NH4Cl-H2O system on glassy carbon electrode, morphology and structure of deposited zinc were investigated by linear sweep voltammetry, cyclic voltammetry, chronoamperometry, and electrochemical impedance spectroscopy. The results show that benzylideneacetone partially inhibits reduction of zinc ion, zinc deposition potential negatively shifts by 132 mV and exchange current density changes from 3.47×10-4 A/m2 to 0.51×10-4 A/m2 with benzylideneacetone concentration of 0.08 g/L. Benzylideneacetone does not change zinc nucleation mechanisms of 3D-instantaneous nucleation during initial stages of zinc deposition, but decreases its growth rate. Zinc morphologies are mainly in form of layer. Growth of zinc crystal plane has preferred orientation, and grain size is refined in presence of benzylideneacetone. |
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