Analysis of the redox reaction of 9,10-phenanthrenequinone on a gold electrode surface by cyclic voltammetry and time-resolved Fourier transform surface-enhanced Raman scattering spectroscopy

Ishioka, Toshio; Uchida, Tatsuo; Teramae, Norio

doi:10.1016/s0003-2670(01)01352-6

Cited by 13 publications

(7 citation statements)

References 15 publications

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“…The smaller shift as observed above with peak II (37 mV) suggests that approximately only one proton is involved in the faradaic process. Such a behavior has also been observed earlier with 9,10-phenanthrenequinone and ascribed to the adsorption of the reduced form onto the electrode surface by a phenolate moiety . In fact, from Figure , one can see that the anodic wave of peak II indeed exhibits a surface waveshape.…”

Section: Resultssupporting

confidence: 81%

“…Such a behavior has also been observed earlier with 9,10-phenanthrenequinone and ascribed to the adsorption of the reduced form onto the electrode surface by a phenolate moiety. 55 In fact, from Figure 5, one can see that the anodic wave of peak II indeed exhibits a surface waveshape. Furthermore, the existence of phenanthrenequinone derivatives on the carbon nanoparticle surface might also account for the observed merging of the two anodic waves of peaks I and II at decreasing potential sweep rate, as phenanthrenequinone and derivatives are known to decompose during electrochemical reduction.…”

Section: Resultsmentioning

confidence: 89%

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Nanosized Carbon Particles From Natural Gas Soot

et al. 2009

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Carbon nanoparticles were prepared by refluxing the combustion soot of natural gas in nitric acid. Transmission Electron Microscopy measurements showed that the resulting particles exhibited an average diameter of 4.8 ± 0.6 nm, and the crystalline lattices were consistent with graphitic carbons. 13C NMR and FTIR spectroscopic measurements further confirmed the presence of sp2 carbons in the form of aryl and carboxylic/carbonyl moieties. The resulting carbon nanoparticles were found to emit photoluminescence with a quantum yield of approximately 0.43%. Additionally, the emission band energy of the carbon nanoparticle was very similar to that of much smaller carbon nanoparticles obtained from candle soot, suggesting that the photoluminescence might arise from particle surface states, analogous to the behaviors of semiconductor quantum dots with an indirect bandgap. In electrochemical measurements, two pairs of well-defined voltammetric waves were observed, which might be ascribed to the peripheral functional moieties that were analogous to phenanthrenequinone derivatives. Interestingly, the carbon nanoparticles might also be exploited as nanoscale structural scaffolds for the deposition of nanostructures of varied transition metals, leading to the formation of metal−carbon functional nanocomposites.

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Section: Resultssupporting

confidence: 81%

Section: Resultsmentioning

confidence: 89%

Nanosized Carbon Particles From Natural Gas Soot

et al. 2009

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“…PQ can chemisorb on a silicon or gold surface through reactions between its ketone functionalities and the substrate. [24][25][26][27] In the case of carbon substrates, strong and irreversible physisorption occurs due to p-stacking between the aromatic rings of PQ and the graphitic planes of the substrate and it has been shown that the most energetically favourable conguration is when the molecule is oriented parallel to the substrate. 21,22 Brown and Anson were the rst to study the adsorption of PQ on basal-plane pyrolytic graphite.…”

Section: Introductionmentioning

confidence: 99%

Spontaneous grafting of 9,10-phenanthrenequinone on porous carbon as an active electrode material in an electrochemical capacitor in an alkaline electrolyte

et al. 2015

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“…It is well-known that in aqueous media, quinone-diol derivatives undergo two-proton and two-electron redox reactions, leading to a cathodic shift of 59 mV with the increase of one pH unit at room temperature. 21,22 The nature of these voltammetric behaviors from the symmetrical redox peaks was actually due to charge transfer of peripheral functional moieties that were analogous to quinone-diol derivatives. In addition, the reaction with a moderate oxidizing ability was in favor of producing quinone-diol structures due to the properties of aromatic compounds.…”

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confidence: 99%