2002
DOI: 10.1016/s0022-0728(02)01155-5
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Irreversible transformation of polypyrrole-bound viologen with two-electron reduction in acidic aqueous solutions

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Cited by 17 publications
(7 citation statements)
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“…/V°) respectively. These results are similar to electrochemical response of viologen generally observed . Biotinylated ferrocene ( 4 ) presents one reversible redox system at 0.2 V assigned to the redox couple Fe 3+ /Fe 2+ (Figure , dashed line).…”
Section: Resultssupporting
confidence: 86%
“…/V°) respectively. These results are similar to electrochemical response of viologen generally observed . Biotinylated ferrocene ( 4 ) presents one reversible redox system at 0.2 V assigned to the redox couple Fe 3+ /Fe 2+ (Figure , dashed line).…”
Section: Resultssupporting
confidence: 86%
“…Figure 1(a) exhibited one anodic peak at 0.2 V in reverse scan, assigned to the electrochemical reaction: Fe 3+ + e -= Fe 2+ . These redox properties were typically of ferrocene [16,17]. The DPV curve of Fc Biotpresented the same anodic wave at 0.2 V as observed in CV curve (Fig.…”
Section: Structure Determination Of Fc Biot Compoundsupporting
confidence: 70%
“…For other kinds of electrode materials there have been several articles describing the immobilization of this redox system, utilizing different techniques such as self-assembly, 27,28 Langmuir-Blodgett assembly, 29 and electropolymerization. 30 However, to our knowledge, this is the first report on the simple fabrication of viologen-functionalized electrodes in the area of electrochemically assisted grafting of carbon surfaces. 31 We selected viologen as our target molecule due to its convenient detection in the immobilized layer by electroanalytical and spectroscopic techniques, in addition to its potential applications in surface-confined molecular shuttles or switchable nano-structures and electrocatalysis.…”
Section: Introductionmentioning
confidence: 93%
“…The decline in activity is presumably due to the fact that the neutral quinoic-like structure of the fully reduced viologen reacts slowly with protons and residual water. 30 If the electrode is left at a potential of À2 V SCE (B À1.1 V below the second redox process) for 300 s, the electroactivity is lost completely. However, the electrodes are still blocked, as shown by their strong inhibition of the redox process of a ferrocene solution in cyclic voltammetry.…”
Section: Cyclic Voltammetrymentioning
confidence: 99%