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【求助】对Advanced materials上的一个电沉积工艺不理解 已有3人参与
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硫酸铜和乳酸， 用氢氧化钠调Ph值到9 这怎么实现的，铜离子水溶液，稍偏碱性一些就会发生沉淀了啊 Adv. Mater. 2009, 21, 3012–3015 Fabrication of Three-Dimensional Photonic Crystals Using Multibeam Interference Lithography and Electrodeposition Electrodeposition: Electrodeposition of Cu2O[31] was performed using a conventional three-electrode setup. A platinum plate and a Ag/AgCl in saturated potassium chloride aqueous solution (SSE) were used as counter and reference electrodes, respectively. The electrolyte was an aqueous solution containing cupric sulfate (0.2 M) and lactic acid (1.6 M). The pH of the solution was adjusted to 9 by addition of sodium hydroxide. The solution temperature was kept constant at 65 8C during deposition. The Cu2O layer was grown under potentiostatic conditions at _0.55 V versus SSE. To facilitate infilling of the hydrophobic SU-8 template with the cupric sulfate aqueous solution, the 3D template was first wetted by ethanol before electrodeposition. |
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