| 查看: 439 | 回复: 7 | |||
| 当前主题已经存档。 | |||
| 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 | |||
[交流]
【求助】开路电位为3V左右
|
|||
|
我用的是碳钢X60做工作电极，甘汞电极做参比电极，铂电极做辅助电极。在测试3.5%NaCl溶液时，为什么开路电位在3V左右波动，而且不稳定，我把工作电极拿出来看下，缝隙腐蚀很严重，是什么原因啊？线路连接正确，我试了三篇了啊。 http://blog.sina.com.cn/zhaoyonghgd |
回复此楼» 猜你喜欢
招贤纳博（已结束）
已经有29人回复
-
表征测试机构后台私聊我
已经有0人回复
-
分析化学论文润色/翻译怎么收费?
已经有51人回复
-
Coordination Chemistry Reviews
已经有1人回复
-
请问现在还有电池材料方向的博导招人吗
已经有4人回复
★
小木虫(金币+0.5):给个红包，谢谢回帖交流
小木虫(金币+0.5):给个红包，谢谢回帖交流
|
in principle, for a potentiostat, three electrodes system, the counter electrode is used for the current circuit, the potential of working electrode is measure use a reference electrode as a reference. because we just can measure a voltage between two electrodes, can not measure anyone of them. For the case of OCP, the current is zero, it means not current flow. so we don't need the counter electrode. a multimeter, with very high resisitant, 10M ohm, maybe, if the voltage is 1V. the current is 0.1mA, very low, is equal to OCP. then you can exclude the effect of current, not corrision will be seen |
4楼2010-03-18 23:17:57
2楼2010-03-18 21:23:15
3楼2010-03-18 21:46:01
5楼2010-03-19 08:30:24