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zhingjw(½ð±Ò+6,VIP+0):лл 5-18 21:52
zhingjw(½ð±Ò+6,VIP+0):лл 5-18 21:52
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ÎÒÈÏΪ·Òë²»´í£¬²»¹ý£¬was investigated ¸Ä³Éwere ,ÆäËûµÄûÎÊÌâµÄ£¬ÖÁÉÙ´ÓÓï·¨ÉÏûÎÊÌ⣬רҵ´Ê»ãÒòΪ²»Ì«Á˽⣬ËùÒÔ¾õµÃÓ¦¸ÃÎÊÌâ²»´ó£¬½ö¹©²Î¿¼¡£·Òë±¾À´¾Í²»´í£¬´ó¼ÒûÀíÓÉ˵¸ø½ð±ÒÉÙ¡£Èç´ó¼Ò»¹ÄÜÕÒµ½Óï·¨´íÎ󣬾ÍÇëÈÊÕß¼ûÈÊÖÇÕß¼ûÖÇÁË¡£ The initial stage of copper electrodeposition and the influence of CO32- ions on the nucleation and growth of copper on glass carbon from a 1-hydroxyethylidene-1,1-diphosphonic acid (HEDPA) electrolyte were investigated using cyclic voltammetry (CV) and chronoamperometry (CA) techniques. The nucleation is in a good agreement with the progressive nucleation and three-dimensional (3D) growth for the solutions without CO32-, while instantaneous nucleation with three-dimensional growth was found for the electrolyte with CO32-.There was an increase in the nuclear number density of nuclei at the surface with the increase of potential.The possible explanation for this result was that CO32- could enter the complex to stable the Cu in the structure as the second ligand and formed a kind of more stable complex compound ,which was adsorbed on the surface of electrode. |
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