A low temperature in situ infrared reflected absorbance spectroelectrochemical (LT IRRAS) cell

Liu, Peng; Jin, Baokang; Cheng, Faliang

doi:10.1016/j.jelechem.2007.02.012

Cited by 11 publications

(2 citation statements)

References 34 publications

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“…Electrochemical experiments were performed with an EG&G PAR model 283 potentiostat/galvanostat. A homemade thin-layer in situ FT-IR-RAS (reflection absorption spectroscopy) spectroelectrochemical cell was used with a 4 mm diameter platinum disk working electrodes, a platinum wire auxiliary, and a Ag wire or Ag/AgCl reference electrode placed symmetrically around the working electrode. , …”

Section: Electrochemistrymentioning

confidence: 99%

IR Spectroelectrochemical Cyclic Voltabsorptometry and Derivative Cyclic Voltabsorptometry

Jin

Huang

et al. 2009

Anal. Chem.

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In this paper, we report the IR (infrared) CVA (cyclic voltabsorptometry) and DCVA (derivative cyclic voltabsorptometry) spectroelectrochemical techniques to elucidate an electrochemical mechanism. First we set potassium ferrocyanide as an example to explain the validity of this method. Then the electrochemical redox of two compounds, 1,4-benzoquinone and 1,4-bis(2-ferrocenylvinyl)benzene, was selected to be examined with this method. 1,4-Benzoquinone exhibits two single-electron waves in the cyclic voltammetric (CV) experiment, whereas two electroactive groups (Fc) are contained in p-(Fc-CH=CH)(2)BZ, but only one redox wave is observed. IR CVA results show that three IR absorption peaks in 1,4-benzoquinone, 1232 cm(-1) (the absorption of final production), 1656 cm(-1) (the absorption of original reactant), and 1510 cm(-1) (the absorption of intermediate), and two IR absorption peaks in 1,4-bis(2-ferrocenylvinyl)benzene, 1620 cm(-1) (the absorption of final oxide production) and 1589 cm(-1) (the absorption of intermediate), can be used to track the electron transfer. On the basis of the IR absorbance at the appropriate monitored wavelength (mentioned above), we can analyze simultaneously the concentration change of the corresponding redox transition during CV scans. Also the combination of the DCVA spectroelectrochemical technique with theory analysis allows reconstructing the current-potential (i-E) curve for each step of electron transfer. The reconstructed i-E curve can help us to understand the electron-transfer process. We believe IR CVA and DCVA spectroelectrochemical techniques can be applicable to the study of a wide range of complex electrochemistry processes.

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Section: Electrochemistrymentioning

confidence: 99%

IR Spectroelectrochemical Cyclic Voltabsorptometry and Derivative Cyclic Voltabsorptometry

Jin

Huang

et al. 2009

Anal. Chem.

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“…All the experiments were carried out in a homemade reflection-absorption variable-temperature spectroelectrochemical cell with liquid-nitrogen cryostat [22]. The incident angle was adjusted to 30°.…”

Section: In Situ Ft-ir Spectroscopic Measurementsmentioning

confidence: 99%

Rapid-scan time-resolved FT-IR spectroelectrochemistry – Study on the electron transfer of ferrocene-substituted thiophenes

Jin

Tao

Liu

2008

Journal of Electroanalytical Chemistry

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Spectroscopy at Electrochemical Interfaces

2009

Surface and Interface Analysis

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A low temperature in situ infrared reflected absorbance spectroelectrochemical (LT IRRAS) cell

Cited by 11 publications

References 34 publications

IR Spectroelectrochemical Cyclic Voltabsorptometry and Derivative Cyclic Voltabsorptometry

IR Spectroelectrochemical Cyclic Voltabsorptometry and Derivative Cyclic Voltabsorptometry

Rapid-scan time-resolved FT-IR spectroelectrochemistry – Study on the electron transfer of ferrocene-substituted thiophenes

Spectroscopy at Electrochemical Interfaces

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