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飞儿271

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[求助] 氧化锰在中性电解液中的CV曲线 已有1人参与

氧化锰在中性电解液中的CV曲线为什么没有明显的氧化还原峰,氧化锰是赝电容材料,而赝电容活性物质会有对应的氧化还原峰?最好能用相关的文献来解答,谢谢大家!
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wb453144

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【答案】应助回帖

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感谢参与,应助指数 +1
飞儿271: 金币+100, ★★★很有帮助 2015-11-19 16:46:36
看看这篇文章,Materials for electrochemical capacitors,里面有详细讲解。
2楼2015-11-19 15:11:25
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飞儿271

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引用回帖:
2楼: Originally posted by wb453144 at 2015-11-19 15:11:25
看看这篇文章,Materials for electrochemical capacitors,里面有详细讲解。

这篇文章我看了好多遍,但是都没有说是为什么?The charge storage mechanism is based on surface adsorption
of electrolyte cations C+ (K+, Na+…) as well as proton incorporation
according to the reaction:
MnO2 + xC+ + yH+ + (x+y)e– ↔ MnOOCxHy (8)
Figure 6 shows a cyclic voltammogram of a single MnO2 electrode in
mild aqueous electrolyte; the fast, reversible successive surface redox
reactions define the behaviour of the voltammogram, whose shape is
close to that of the EDLC. MnO2 micro-powders or micrometre-thick
films show a specific capacitance of about 150 F g–1 in neutral aqueous
electrolytes within a voltage window of <1 V.
3楼2015-11-19 16:31:19
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飞儿271

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引用回帖:
2楼: Originally posted by wb453144 at 2015-11-19 15:11:25
看看这篇文章,Materials for electrochemical capacitors,里面有详细讲解。

Figure 6 shows a cyclic voltammogram of a single MnO2 electrode in
mild aqueous electrolyte; the fast, reversible successive surface redox
reactions define the behaviour of the voltammogram, whose shape is
close to that of the EDLC.    我看明白了,就是这一句话
4楼2015-11-19 16:34:02
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wb453144

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金虫

引用回帖:
4楼: Originally posted by 飞儿271 at 2015-11-19 16:34:02
Figure 6 shows a cyclic voltammogram of a single MnO2 electrode in
mild aqueous electrolyte; the fast, reversible successive surface redox
reactions define the behaviour of the voltammogram, whose ...

恩 就这个!
5楼2015-11-19 16:39:55
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wb453144

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金虫

【答案】应助回帖

引用回帖:
4楼: Originally posted by 飞儿271 at 2015-11-19 16:34:02
Figure 6 shows a cyclic voltammogram of a single MnO2 electrode in
mild aqueous electrolyte; the fast, reversible successive surface redox
reactions define the behaviour of the voltammogram, whose ...

二氧化锰CV图没有氧化还原峰的原因?
再看看这个帖子!
6楼2015-11-19 16:41:53
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