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231223s2010 xx |||||o 00| ||eng c |
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|a 10.1021/la904483y
|2 doi
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|a pubmed24n0651.xml
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|a (DE-627)NLM195165217
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|a (NLM)20163082
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|a DE-627
|b ger
|c DE-627
|e rakwb
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| 041 |
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|a eng
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| 100 |
1 |
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|a Oyama, Taku
|e verfasserin
|4 aut
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| 245 |
1 |
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|a EQCM study of the [Au(III)Cl4](-)-[Au(I)Cl2](-)-Au(0) redox system in 1-ethyl-3-methylimidazolium tetrafluoroborate room-temperature ionic liquid
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|c 2010
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|a Text
|b txt
|2 rdacontent
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|a ƒaComputermedien
|b c
|2 rdamedia
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|a ƒa Online-Ressource
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|2 rdacarrier
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|a Date Completed 08.09.2010
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|a Date Revised 25.05.2010
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|a published: Print
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|a Citation Status PubMed-not-MEDLINE
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|a The electrochemical behavior of the [Au(III)Cl(4)](-)-[Au(I)Cl(2)](-)-Au(0) redox system in room temperature ionic liquid (RTIL) of 1-ethyl-3-methylimidazolium tetrafluoroborate (EMIBF(4)) has been investigated quantitatively using an in situ electrochemical quartz crystal microbalance (EQCM) technique based on a Pt film-coated quartz crystal electrode (Pt-QCE). A series of two-electron (2e) and one-electron (1e) reductions of the [Au(III)Cl(4)](-) to [Au(I)Cl(2)](-) and [Au(I)Cl(2)](-) to Au metal were recognized at the Pt surface. Besides, the disproportionation reaction of [Au(I)Cl(2)](-) (i.e., the 2e-reduction product of [Au(III)Cl(4)](-)) to [Au(III)Cl(4)](-) and Au metal was also observed. Electro-dissolution of the Au deposited on the Pt electrode through a 1e-oxidation reaction in the presence of chloride ions was also confirmed using the Pt-QCE based EQCM technique. A 2e-oxidation reaction of [Au(I)Cl(2)](-) (i.e., the dissolved product) to [Au(III)Cl(4)](-) along with the oxidation of Cl(-) ion on the Pt surface was also realized at high anodic potential. The results demonstrate that in situ EQCM technique is applicable and powerful in elucidating electrochemical surface phenomena accompanying a mass change in RTIL
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|a Journal Article
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1 |
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|a Yamaguchi, Shuichiro
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Rahman, Mohammad Rezaur
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Okajima, Takeyoshi
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Ohsaka, Takeo
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Oyama, Noboru
|e verfasserin
|4 aut
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| 773 |
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|i Enthalten in
|t Langmuir : the ACS journal of surfaces and colloids
|d 1992
|g 26(2010), 11 vom: 01. Juni, Seite 9069-75
|w (DE-627)NLM098181009
|x 1520-5827
|7 nnns
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| 773 |
1 |
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|g volume:26
|g year:2010
|g number:11
|g day:01
|g month:06
|g pages:9069-75
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| 856 |
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|u http://dx.doi.org/10.1021/la904483y
|3 Volltext
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|d 26
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|h 9069-75
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