| 查看: 1307 | 回复: 9 | |||
| 当前主题已经存档。 | |||
zhaofeng3211木虫 (正式写手)
|
[交流]
【讨论】循环伏安氧化还原峰可逆性
|
||
|
一种物质在电极上还原，我们希望它的循环伏安氧化还原峰可逆性好还是希望它只有还原峰没有氧化峰？ [ Last edited by zhaofeng3211 on 2009-10-15 at 23:06 ] |
回复此楼» 猜你喜欢
高盐废水电催化氧化，氯离子存在下活性氯副产物、阳极选型的工程困惑
已经有0人回复
-
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
-
物理化学论文润色/翻译怎么收费?
已经有245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
-
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
zhaofeng3211
木虫 (正式写手)
- ECEPI: 1
- 应助: 0 (幼儿园)
- 贵宾: 0.024
- 金币: 3661.1
- 散金: 160
- 红花: 5
- 帖子: 679
- 在线: 296.2小时
- 虫号: 547107
- 注册: 2008-04-16
- 专业: 电化学
2楼2009-10-15 23:07:17
★ ★
zhaofeng3211(金币+1,VIP+0): 10-16 09:26
zhaofeng3211(金币+1,VIP+0): 10-16 20:14
zhaofeng3211(金币+1,VIP+0): 10-16 09:26
zhaofeng3211(金币+1,VIP+0): 10-16 20:14
|
It is really hard to answer no matter who saw the question in the way you asked. During the cyclic voltammetry test, the redox reaction on the surface of electrode could be considered in the state of equilibrium ideally but not as reversible one, when applied certain potential in a flash. The reduction wave or oxidation one may appear or not, but absolutely is dependent on your sweep range. So the key point about your question is about what you will expect to obtain from the CV, I think. I kown your research would focus on reduction of some substance, but there are many detailed information you should devote your attention as a potent parameter at the same time. |
3楼2009-10-16 06:10:15
4楼2009-10-16 08:49:55
dodolook165
木虫 (正式写手)
- 应助: 35 (小学生)
- 金币: 2460.8
- 散金: 561
- 红花: 5
- 帖子: 618
- 在线: 183.2小时
- 虫号: 458295
- 注册: 2007-11-13
- 性别: GG
- 专业: 电化学分析
5楼2009-10-16 09:01:05
zhaofeng3211
木虫 (正式写手)
- ECEPI: 1
- 应助: 0 (幼儿园)
- 贵宾: 0.024
- 金币: 3661.1
- 散金: 160
- 红花: 5
- 帖子: 679
- 在线: 296.2小时
- 虫号: 547107
- 注册: 2008-04-16
- 专业: 电化学
6楼2009-10-16 09:46:35
★
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
|
I think I know your case now but that is really a question on methodology. Objectively, it is impossible to recognize the potential range in reduction before CV, except for following related research papers. When doing research in reduction, it is a tradition to begin the scan in negative direction forward. During the cycle, oxidation wave may appear or disappear when scan turn around to more positive potential than the incipient one you set before. So there is not any necessity whether the disappearance of oxidation wave will be better in CV. If there is signal of anode current, you can better understand more properties on electrode surface. So it is totally dependent on your experiment design and your analysis from CV diagram. |
7楼2009-10-16 20:23:15
maymay9288
金虫 (初入文坛)
- 应助: 0 (幼儿园)
- 金币: 879.5
- 散金: 18
- 帖子: 46
- 在线: 8.6小时
- 虫号: 715657
- 注册: 2009-03-05
- 性别: MM
- 专业: 电化学
8楼2009-10-17 09:33:53
dodolook165
木虫 (正式写手)
- 应助: 35 (小学生)
- 金币: 2460.8
- 散金: 561
- 红花: 5
- 帖子: 618
- 在线: 183.2小时
- 虫号: 458295
- 注册: 2007-11-13
- 性别: GG
- 专业: 电化学分析
9楼2009-10-17 09:56:52
10楼2009-10-20 18:58:47