| 查看: 1639 | 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? |
» 猜你喜欢
【2027级博士申请】双非硕・一作 SCI 3 篇(2篇CEJ 一区 Top)储能方向
已经有15人回复
石墨电催化体系反应动力学:污染物浓度与反应速率的关联规律
已经有0人回复
物理化学论文润色/翻译怎么收费?
已经有145人回复
海南大学杨金霖老师招收2027级博士生(储能电池方向)
已经有8人回复
氮掺杂石墨阴极制备:掺杂量对氧还原活性的调控规律
已经有0人回复
电催化CO2还原
已经有1人回复
铁基负载石墨催化极板:金属活性位点的催化增效机制
已经有0人回复
石墨电催化系统参数匹配原则:水质、电流与极距的协同设计
已经有0人回复
锂金属电池求助
已经有1人回复
石墨阴极电催化耦合臭氧:协同增效还是资源浪费?
已经有0人回复
pH 对石墨催化极板反应选择性的影响:从自由基生成到副反应转向
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











回复此楼