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231223s2009 xx |||||o 00| ||eng c |
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|a 10.1021/la9012119
|2 doi
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|a pubmed24n0634.xml
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|a DE-627
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|e rakwb
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|a eng
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1 |
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|a Chang, Jeng-Kuei
|e verfasserin
|4 aut
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|a Pseudocapacitive mechanism of manganese oxide in 1-ethyl-3-methylimidazolium thiocyanate ionic liquid electrolyte studied using X-ray photoelectron spectroscopy
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|c 2009
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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 03.12.2009
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|a Date Revised 30.09.2009
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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 anodically deposited manganese oxide was studied in pyrrolidinium formate (P-HCOO), 1-butyl-3-methylimidazolium hexafluorophosphate (BMI-PF6), and 1-ethyl-3-methylimidazolium thiocyanate (EMI-SCN) ionic liquids (ILs). The experimental data indicate that the Mn oxide electrode showed ideal pseudocapacitive performance in aprotic EMI-SCN IL. In a potential window of approximately 1.5 V, the oxide specific capacitance, evaluated using cyclic voltammetry and chronopotentiometry, was about 55 F/g. The electrochemical energy storage reaction was examined using X-ray photoelectron spectroscopy (XPS). It was confirmed that the SCN- anions, instead of the EMI+ cations, were the primary working species that can become incorporated into the oxide and thus compensate the Mn3+/Mn4+ valent state variation upon the charge-discharge process. According to the analytical results, a pseudocapacitive mechanism of Mn oxide in the SCN- based aprotic IL was proposed
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|a Journal Article
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1 |
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|a Lee, Ming-Tsung
|e verfasserin
|4 aut
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|a Tsai, Wen-Ta
|e verfasserin
|4 aut
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|a Deng, Ming-Jay
|e verfasserin
|4 aut
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1 |
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|a Cheng, Hui-Fang
|e verfasserin
|4 aut
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| 700 |
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|a Sun, I-Wen
|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 25(2009), 19 vom: 06. Okt., Seite 11955-60
|w (DE-627)NLM098181009
|x 1520-5827
|7 nnns
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| 773 |
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|g volume:25
|g year:2009
|g number:19
|g day:06
|g month:10
|g pages:11955-60
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|u http://dx.doi.org/10.1021/la9012119
|3 Volltext
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