Electrochemical pH Oscillations of Ethyl Viologen/Ionic Liquid

Shin, Su Ryon; Lee, Chang Kee; Kim, Sun I.; So, Insuk; Spinks, Geoffrey M.; Wallace, Gordon G.; Kim, Seon Jeong

doi:10.1021/la7027093

Cited by 3 publications

(2 citation statements)

References 19 publications

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“…Shin et al claimed that an imidazolium based IL acts as an electron buffer that maintains low pH levels, thereby stabilising the reduced state. 32 Future work therefore will be to monitor the kinetics of the reversion of the viologen dye to its dicationic form in different ionogel compositions, with a view to optimising these parameters for the development of future electrochromic devices.…”

Section: Viologen Spectroelectrochemistry and Device Fabricationmentioning

confidence: 99%

Photo-patternable hybrid ionogels for electrochromic applications

et al. 2011

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Section: Viologen Spectroelectrochemistry and Device Fabricationmentioning

confidence: 99%

Photo-patternable hybrid ionogels for electrochromic applications

et al. 2011

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“…Since there are some obvious similarities between chemical oscillating systems and life processes that generally exhibit oscillatory behaviors, the investigation of the oscillating systems is of considerable interest. While a substantial number of chemical oscillators are known and have been widely used in analytical detection, [1][2][3][4][5][6][7][8][9][10][11][12][13][14] relatively few oscillating chemiluminescence (CL) reactions in the liquid phase have been described. [15][16][17][18][19][20] Recently, owing to the particular photochemical and photophysical properties of the tris(2,2′-bipyridine)ruthenium(II) [Ru(bpy) 3 2+ ] CL reagent, [21][22][23] the Ru(bpy) 3…”

Section: Introductionmentioning

confidence: 99%

Perturbation of the tris(2,2′‐bipyridine) ruthenium(II)‐catalyzed Belousov–Zhabotinsky oscillating chemiluminescence reaction by l‐cysteine and its application

Liu

Han

2009

Luminescence

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Perturbation of the tris(2,2'-bipyridine)ruthenium(II) [Ru(bpy)(3)2+]-catalyzed Belousov-Zhabotinsky (BZ) oscillating chemiluminescence (CL) reaction induced by L-cysteine was observed in the closed system. It was found that the CL intensity was decreased in the presence of L-cysteine. Meanwhile, oscillation period and oscillating induction period were prolonged. The sufficient reproducible induction period was used as parameter for the analytical application of oscillating CL reaction. Under the optimum conditions, the changes in the oscillating CL induction period were linearly proportional to the concentration of L-cysteine in the range from 8.0 x 10(-7) to 5.0 x 10(-5 )mol L(-1) (r = 0.997) with a detection limit of 4.3 x 10(-7) mol L(-1). The possible mechanism of L-cysteine perturbation on the oscillating CL reaction was also discussed.

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Influence of gel-phase microdomains and lipid rafts in lipid monolayers on the electron transfer of a lipophilic redox probe: dioctadecylviologen

Becucci

Lottini

Guidelli

2011

Phys. Chem. Chem. Phys.

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Gel-phase microdomains and lipid rafts form spontaneously in monolayers of lipid mixtures of dioleoylphosphatidylcholine (DOPC), palmitoylsphingomyelin (PSM) and cholesterol (Chol), self-assembled on mercury. The influence of microdomains on the electron transfer properties of 2 mol% dioctadecylviologen (DODV), incorporated in these lipid monolayers, was investigated by cyclic voltammetry. In pure DOPC, the DODV molecules tend to aggregate, giving rise to strong attractive lateral interactions. With an increase in the PSM mole fraction in DOPC/PSM binary mixtures, the edges of the resulting gel-phase microdomains act as docking sites for the DODV molecules, decreasing lateral interactions and modifying the DODV redox properties. A similar behavior is shown by lipid rafts formed by adding Chol to the above binary mixtures. By varying the DOPC/PSM molar ratio, the midpoint between the peak potentials of the DODV reduction and oxidation peaks shifts in parallel with the surface dipole potential of the lipid mixture. This behavior indicates that the formal (half-reduction) potential of a redox pair, as measured versus a given reference electrode, may include a surface dipole potential if one or both members of the redox pair are embedded in a medium different from the bulk phase containing the reference electrode.

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Electrochemical pH Oscillations of Ethyl Viologen/Ionic Liquid

Cited by 3 publications

References 19 publications

Photo-patternable hybrid ionogels for electrochromic applications

Photo-patternable hybrid ionogels for electrochromic applications

Perturbation of the tris(2,2′‐bipyridine) ruthenium(II)‐catalyzed Belousov–Zhabotinsky oscillating chemiluminescence reaction by l‐cysteine and its application

Influence of gel-phase microdomains and lipid rafts in lipid monolayers on the electron transfer of a lipophilic redox probe: dioctadecylviologen

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