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pj2008

[交流] 三电极体系中,有用Ag disk做参比电极的吗?

电化学方面的知识贫乏,希望得到大家的帮助,谢谢!
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dongsq2562712

金虫 (正式写手)


dnp(金币+1,VIP+0):谢谢应助……^_^
很少用,一般Ag或pt金属电极作参比电极的都是用在非水溶液中,建议一般的电化学实验还是用常规的Ag/AgCl或饱和甘汞电极作参比。
4楼2008-05-11 12:28:56
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yuequeye

铁杆木虫 (正式写手)

呵呵,我没有见过,不过你的想法挺出人意料,可以试试,参比电极主要是稳定就可以。
他年我若为青帝,报与桃花一处开。
2楼2008-05-11 07:17:26
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pj2008

引用回帖:
Originally posted by dongsq2562712 at 2008-5-11 12:28:
很少用,一般Ag或pt金属电极作参比电极的都是用在非水溶液中,建议一般的电化学实验还是用常规的Ag/AgCl或饱和甘汞电极作参比。

文献上是这么写的:Cyclic voltammetry measurements were performed on a
computer-controlled Autolab P20 electrochemical workstation
(Eco Chimie, Netherlands) in combination with a conventional
three-electrode, one-compartment electrochemical cell. A dyecoated
nanocrystalline TiO2 film in the absence (electrode A)
or presence (electrode B) of GBA cografting was employed as
the working electrode. A Pt foil and an Ag disk were used as
counter and reference electrodes, respectively. The reference
electrode was calibrated by measuring the redox potential of
ferrocene dissolved in 1-methyl-3-ethylimidazolium bis (trifluoromethyl)
sulfonyl) imide (EMITFSI), and the redox potentials
were converted to those vs a normal hydrogen electrode (NHE)
reference scale by adding a constant of 0.67 V.
这里参比用的就是Ag disk,电解液是离子液体,是非水体系。

[ Last edited by pj2008 on 2008-5-11 at 22:57 ]
5楼2008-05-11 22:55:53
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