Copper Electroplating
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Cu2+ + 2e− → Cu
概述
Copper ions from a CuSO₄ solution are reduced at the cathode surface, depositing a thin layer of metallic copper. The anode is typically a copper bar that dissolves to replenish Cu²⁺ in solution. Current density, temperature, and additives control the deposit quality, grain size, and brightness.
参与者
| 角色 | 物质 | 系数 | 状态 |
|---|---|---|---|
| 产物 | Copper Cu | 1 | (s) |
日常示例
The shiny copper plating on decorative items, trophies, and plumbing fixtures is applied by this electrochemical process.
工业重要性
电镀铜对PCB制造、半导体互连和装饰性镀层至关重要。它在所有电子设备中形成导电层。
属性
- 可逆
- 是
- 能量
- 放热
- ΔH
- -65.5 kJ/mol
Frequently Asked Questions
What is the equation for Copper Electroplating?
The balanced equation is: Cu²⁺ + 2e⁻ → Cu.
What type of reaction is Copper Electroplating?
Copper Electroplating is a electrochemical reaction. It is reversible under certain conditions.
Is Copper Electroplating exothermic or endothermic?
Copper Electroplating is exothermic (releases energy). The enthalpy change (ΔH) is -65.5 kJ/mol.