| 查看: 1917 | 回复: 5 | ||||
[交流]
【求助】电化学反应的三电极如何变成二电极体系测试固体
|
|
电化学反应的是最常用电化工作站！ 如何将这样的电化工作站变成二电极体系，用来测试固体样品伏安曲线。     |
回复此楼» 收录本帖的淘帖专辑推荐
 电化学 |
» 猜你喜欢
合肥工业大学854仪器技术综合专业课考研
已经有0人回复
-
27年电化学博士毕业，想找海外QS前50的高校读博后求推荐
已经有3人回复
-
物理化学论文润色/翻译怎么收费?
已经有72人回复
-
27年电池/材料类博士申请
已经有2人回复
-
2027年博士申请或转博科研助理 求推荐
已经有1人回复
-
请问谁有2025最新影响因子Excel表？金币求助！
已经有53人回复
-
氯化钠与有机磺酸分离
已经有1人回复
-
瑞典-博后-固态电池-粘结剂-锂离子电池方向
已经有53人回复
-
广东省面上有什么动态么，啥时候公布呀？
已经有1人回复
» 本主题相关价值贴推荐，对您同样有帮助:
- 三电极体系和二电极体系的区别
已经有12人回复
- 283 电化学工作站，三电极位置怎么放，对测试结果有影响吗？
已经有11人回复
- 关于电化学超级电容器电化学测试时的电极问题
已经有7人回复
- 【求助】有机电解液用三电极如何测试
已经有9人回复
- 【求助】三电极系统的电化学阻抗，怎么拟合电路呢
已经有6人回复
- 【求助】循环伏安测试必须用三电极体系吗？不用对电极可以吗？
已经有16人回复
- 【求助】CHI660c电化学工作站的三电极与电极线怎么链接？
已经有21人回复
- 【讨论】电化学中三电极体系工作原理
已经有84人回复
- 电化学测试三电极体系咨询
已经有6人回复
2楼2010-12-27 19:25:19
3楼2010-12-28 09:39:20
转载-二电极与三电极的之间的转化使用！但是来测试固体样品伏安曲线仍需解决？
|
applied potential is required, but this is not possible with a two electrode system, 工作电极总是独立的，对电极和参比电极可以根据具体的情况选择是用一个电极既做参比又做对电极而组成双电极测试系统，或者参比和对电极分开，形成三电极测试系统。 All electrochemical cells require at least two electrodes, since the potential of a given electrode can only be measured relative to another electrode, the potential of which must be constant (a reference electrode). In potentiometric measurements (such as measurement of pH), there is no current through the cell, and these two electrodes are sufficient (it should be noted that many pH and ion-selective electrodes used in potentiometric measurements are combination electrodes – both electrodes are contained within the same body). However, in a cyclic voltammetry experiment, an external potential is applied to the cell, and the current response is measured. Precise control of the external due to the potential drop across the cell due to the solution resistance (potential drop (E) = current (i) x solution resistance (R)) and polarization of the counter electrode that is required to complete the current measuring circuit. Better potential control is achieved using a potentiostat and a three electrode system, in which the potential of one electrode (the working electrode) is controlled relative to the reference electrode, and the current passes between the working electrode and the third electrode (the auxiliary electrode). |
4楼2010-12-28 10:49:23
5楼2010-12-28 20:21:04
6楼2013-04-24 16:43:30
30
