24小时热门版块排行榜

返回列表

当前只显示满足指定条件的回帖，点击这里查看本话题的所有回帖

ann198412169

金虫 (小有名气)

应助: 0 (幼儿园)
金币: 1380.9
帖子: 141
在线: 89.1小时
虫号: 976836

[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

长春工程学院市政工程专业有部分调剂名额，欢迎大家调剂到我校已经有0人回复
重庆文理学院2026年硕士研究生招生调剂信息化学、材料工程已经有0人回复
分析化学论文润色/翻译怎么收费? 已经有148人回复
中南林科大化工院专硕第三批调剂已经有2人回复
26年储能、电池方向博士申请已经有2人回复
大连工业大学杰青/长江团队-生物质材料-储能电池方向招收2026级博士生已经有1人回复
欢迎硕博咨询已经有24人回复
求审搞机会已经有4人回复
昆明理工大学冶能院离子液体冶金课题组招收博士生已经有2人回复
锂电池正极材料前驱体法制备正极材料已经有0人回复

» 本主题相关价值贴推荐，对您同样有帮助:

» 抢金币啦！回帖就可以得到:

查看全部散金贴

1楼 2011-10-11 09:36:29

已阅回复此楼关注TA 给TA发消息送TA红花 TA的回帖

ann198412169

金虫 (小有名气)

应助: 0 (幼儿园)
金币: 1380.9
帖子: 141
在线: 89.1小时
虫号: 976836

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！