Voltammetric reduction of perinaphthenone in aqueous and non-aqueous media: An electrochemical ESR investigation

Wain, Andrew J.; Drouin, Ludovic; Compton, Richard G.

doi:10.1016/j.jelechem.2006.01.025

Cited by 12 publications

(7 citation statements)

References 25 publications

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“…Spectra to paramagnetic species with different functional groups that substituted one hydrogen atom are presented in literature (Lewis & Singer, 1969;Rabold et al, 1965;Wain et al, 2006). The calculated hfs coupling constants for the second lines group is in strong agreement with the values reported by Rabold et al (Rabold et al, 1965) to the hydroxiperinaphthenyl radical.…”

supporting

confidence: 75%

Crude Oil by EPR

Piccinato¹,

Guedes²,

Mauro³

2012

Crude Oil Emulsions- Composition Stability and Characterization

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supporting

confidence: 75%

Crude Oil by EPR

Piccinato¹,

Guedes²,

Mauro³

2012

Crude Oil Emulsions- Composition Stability and Characterization

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“…Neglecting the C term, G was calculated using the following values for the potentials: E ox (TEMP) = 1.0 V and E red = -1.2, -1.3, -2.6 and -1.8 V vs SCE for PN [33], BP [20], NP [34] and CBZ [35], respectively. In the case of PN [36] and BP [20], the lowest triplet excited state energy was considered for E* with values of 220 and 292 kJ mol -1 , respectively, whereas this parameter was associated with the singlet manifold for NP [34] and CBZ [37], using values of 377 and 344 and kJ mol -1 , respectively.…”

Section: Photoinduced Electron Transfermentioning

confidence: 99%

Scope and limitations of the TEMPO/EPR method for singlet oxygen detection: the misleading role of electron transfer

Nardi

Manet

Monti

et al. 2014

Free Radical Biology and Medicine

208

104

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“…The rest (66%) would mainly consist of carbonyls which are not electrochemically active at least in the potential range of the present study, such as a single carbonyl. For example, the redox potential of perinaphthenone, 66 which has only one carbonyl group, is much lower than the redox potential of anthraquinone, 67 which has two carbonyl groups. Cazorla-Amorós et al have systematically investigated the pseudocapacitance behaviors of various activated carbons that were chemically oxidized with HNO 3 .…”

Section: ¹1mentioning

confidence: 99%

Large Pseudocapacitance in Quinone-Functionalized Zeolite-Templated Carbon

Itoi

Nishihara²,

Ishii³

et al. 2013

Bulletin of the Chemical Society of Japan

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Zeolite-templated carbon (ZTC), which can be obtained as a negative replica of a zeolite, consists of buckybowllike nanographenes assembled into a three-dimensional regular network. ZTC is characterized not only by this unique framework structure but also by a very large number of carbon edge sites. In this paper, we report that the edge sites of ZTC are easily functionalized by a large amount of quinone groups through electrochemical oxidation unlike general carbonaceous materials, and the quinone-functionalized ZTC shows a high electrochemical capacitance (ca. 300 500 F g ¹1 ) in an aqueous electrolyte solution (1 M H 2 SO 4 ) as a result of the large pseudocapacitance derived from a quinone/hydroquinone redox couple. Moreover, ZTC keeps its high capacitance even after thousands of charge discharge cycles.Fullerenes, 1 single-walled carbon nanotubes (SWCNTs), 2,3 and graphenes 4,5 are nanocarbon materials with 0D, 1D, and 2D topologies, respectively. Though fullerenes form poorly conductive van der Waals crystals, SWCNTs 6,7 and graphenes 811 are electrically conductive, and are promising as electrode materials for electrochemical capacitors. 12 Their building unit, a graphene sheet, has a large theoretical surface area (2630 m 2 g ¹1 ), and therefore potentially has a large capacitance. However, the actual BrunauerEmmettTeller (BET) surface areas of SWCNTs 13 and graphenes 8 are at most 1250 and 705 m 2 g ¹1 , respectively, because of the aggregation/stacking of the graphene sheets as a result of strong van der Waals interactions. To expose the entire surface, a graphene sheet has to be formed into a self-standing 3D network, like carbon schwarzite 14,15 or pillared graphene, 16 both of which are imaginary materials and have only been proposed theoretically. Thus far our group has demonstrated that it is possible to synthesize a graphene-based architecture with a 3D topology inside the confined-nanospace network of a zeolite crystal, as shown in Figures 1a1c. 1720The zeolite-templated carbon (ZTC) thus obtained consists of a buckybowl-like nanographene assembled into a 3D regular network (Figures 1c and 1d). Both sides of the buckybowllike unit are fully exposed, and, in addition, the narrow nanographene-based framework has a significant number of edge sites. 18 Consequently, ZTC has a very large geometric (theoretical) surface area of 3432 m 2 g ¹1 , and such a large surface area has indeed been observed experimentally.18 ZTC possesses unique spin/magnetic properties 21 and is predicted to have a unique band structure. 22 Moreover, it has a high hydrogen-storage capacity 23,24 and superior performance as an electrode for electrochemical capacitors.2527 Modifications of ZTC with electrochemically active species are expected to further enhance its performance. Graphene-based materials are generally modified by doping of graphene with other functional components such as metal nanoparticles, 2830 metal oxides/ hydroxides, 3134 and conductive polymers. 35 Another modification method is to functionalize graphenes...

show abstract

Voltammetric reduction of perinaphthenone in aqueous and non-aqueous media: An electrochemical ESR investigation

Cited by 12 publications

References 25 publications

Crude Oil by EPR

Crude Oil by EPR

Scope and limitations of the TEMPO/EPR method for singlet oxygen detection: the misleading role of electron transfer

Large Pseudocapacitance in Quinone-Functionalized Zeolite-Templated Carbon

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