| 查看: 1539 | 回复: 8 | |||
[交流]
碱性环境电沉积
|
| 请问有人在碱性环境下进行电沉积实验？我采用的电解液在酸性环境中可以沉积，但是我现在想改变下被沉积物质，只能在碱性环境下进行沉积，但是沉积不上，请教下这是个什么问题？是不是在碱性或酸性环境中都可以实现电化学沉积？ |
回复此楼» 猜你喜欢
固相反应中颗粒形貌变化计算模拟学习求助
已经有0人回复
-
电催化氧化技术处理高盐难降解废水具备独特优势
已经有0人回复
-
物理化学论文润色/翻译怎么收费?
已经有111人回复
-
电化学水处理四种主流阳极材料性能与工况适配性对比探讨
已经有0人回复
-
深圳理工大学-深圳大学联合培养项目2027年接收推荐免试研究生
已经有2人回复
-
铁离子电池求助
已经有0人回复
-
想问为什么自制半电池循环只有50圈？
已经有0人回复
-
硕士研究生全国统考 英语二真题合集
已经有0人回复
-
2027年申博自荐信
已经有0人回复
-
电催化、芬顿、臭氧三大高级氧化工艺工程优缺点横向对比
已经有0人回复
» 本主题相关价值贴推荐，对您同样有帮助:
- 锂离子电池正极材料中游离锂对电池的影响
已经有32人回复
- c-v曲线没有氧化－还原峰是怎么回事？
已经有7人回复
- 求助！如何判断沉积物在形成时的环境的酸碱性？
已经有6人回复
- 刚进电化学的小弟对循环伏安法的困惑
已经有59人回复
- 【求助】有图有真相，CV图，迷茫了
已经有7人回复
2楼2011-10-11 20:19:18
3楼2011-10-12 07:23:40
4楼2011-10-12 09:17:48
|
Merck analytical reagent grade 3CdSO4 。8H2O, and Aldrich analytical reagent grade Na2S were used with-out further purification. Merck analytical reagent grade HClO4 and NH3 were used to prepare the pH 9.2 ammonia buffer used as supporting electrolyte. As a matter of fact, the whole sulphur (oxidative) underpotential deposition takes place at potentials negativeto－0.7 V on Ag(111) and at still more negative potentials on Cd layers,whereas cadmium (reductive) underpotential deposition on S-coated Ag(111) takes place at potentials positive to －0.8. Hence, both the sulphur and cadmium under- potential depositions were carried out in ammonia buffer solutions at －0.75 V (SCE). CdS growth was obtained by depositing sulphur from a Na2S solution,washing the cell with the supporting electrolyte, inject- ing the cadmium solution, waiting 30 s to deposit Cd, washing the cell, and repeating this cycle as many times as desired. Polarisation at constant potential was main-tained during the entire procedure. 这是实验部分的原文，请高手指点下，谢谢！ |
5楼2011-10-12 11:55:15
6楼2011-10-12 13:48:56
7楼2011-10-13 01:29:20
8楼2011-10-13 08:53:06
9楼2011-10-17 09:08:20
