Proton transfer across liquid∣liquid interfaces facilitated by the disproportionation reaction of a lutetium bisphthalocyanine: A voltammetric study at the microinterfaces between water and nitrobenzene or 1,6-dichlorohexane

Rimboud, Mickaël; Elléouet, Catherine; Quentel, François; Kerbaol, Jean-Michel; L’Her, Maurice

doi:10.1016/j.jelechem.2008.06.006

Cited by 19 publications

(9 citation statements)

References 42 publications

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“…The proton transfer reaction at the water|DCB interface was studied in the absence and presence of MoS 2 without DcMFc as shown in Figure (a–b), respectively. Both systems indicated that the HER onset potential at each pH shifted by 60 mV/pH in accordance with the Nernst equation . Interestingly, the onset potential in the presence of the interfacial MoS 2 was shifted to more negative potentials by ca.…”

Section: Resultssupporting

confidence: 59%

Hydrogen Evolution at Liquid|Liquid Interfaces Catalyzed by 2D Materials

Hirunpinyopas

Rodgers

Worrall³

et al. 2017

ChemNanoMat

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The hydrogen evolution reaction (HER) plays a crucial role in clean energy production in hydrogen fuel cells. In order to utilise this process effectively, new catalysts are required that are cheap, non-toxic and efficient. In this context, 2D materials such as transition metal dichalcogenides (e.g. MoS 2 ) should offer the desired properties but have so far proven difficult to manufacture into useful devices. In this work, liquid|liquid interfaces are used for the assembly and testing of the catalytic efficiency of a number of 2D materials and their composites, exploiting the ability of the materials to self-assemble at these interfaces and be tested electrochemically in situ. MoS 2 , WS 2 , and graphene were developed for hydrogen evolution at the water|1,2-dichlorobenzene (DCB) interface. The exfoliation process was carried out in DCB and resulted in multi-layer MoS 2 , few layer WS 2 and graphene: when assembled at the water|DCB interface, these materials acted as efficient HER catalysts. HER was investigated using voltammetry, with bulk reaction kinetics monitored by in-situ UVvisible spectroscopy at a constant potential. MoS 2 exhibited the highest performance of the catalysts examined, with an average rate constant of 0.0132 ± 0.063 min -1 at an applied Galvani potential of +0.5 V. This is ascribed to the sulphur edge sites of MoS 2 , which are known to be active for hydrogen evolution predominantly.

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Section: Resultssupporting

confidence: 59%

Hydrogen Evolution at Liquid|Liquid Interfaces Catalyzed by 2D Materials

Hirunpinyopas

Rodgers

Worrall³

et al. 2017

ChemNanoMat

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“…Before being used, nitrobenzene and dichlorohexane (Aldrich) were washed three times with pure water; the organic and aqueous phases were prepared from mutually saturated water and solvents. The lutetium(III) bisphthalocyanine Lu[(tBu) 4 Pc] 2 forms have been synthesized as already reported [21]. The commercial inorganic salts (Aldrich, Fluka) were used without further purification.…”

Section: Experimental Methodsmentioning

confidence: 99%

“…It should be noted that the reduced forms of the Lu III bisphthalocyanines are usually obtained in this way, L 0 being reduced in a solvent, dichloromethane for example, by a tetraalkylammonium hydroxide, OH À being the reducing agent [21].…”

Section: In Nbmentioning

confidence: 99%

Electron transfer between a lutetium bisphthalocyanine and FeIII/II across liquid|liquid interfaces between water and dichlorohexane or nitrobenzene; influence of coupling with ion transfer

Rimboud

Elléouet

Quentel

et al. 2011

Journal of Electroanalytical Chemistry

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“…This solvent has also the advantage of allowing to obtain a larger potential window when comparing to the use DCE or NB [51]. The interest in this solvent was recently noticeable in the literature [52][53][54].…”

Section: Introductionmentioning

confidence: 99%

Electrochemical Sensing of Catecholamines at the Water/ 1,6‐Dichlorohexane Interface

2013

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In this work, the analytical use of facilitated ion transfer of catecholamines by dibenzo-18-crown-6 was investigated at the water/1,6-dichlorohexane interface using electrochemical methods (cyclic and square wave voltammetry). The experimental conditions for the analytical determination of noradrenaline and dopamine were established and detection limits of 1.7 and 0.35 mM were obtained, respectively. The effect of excess ascorbic acid on the transfer and detection of the two catecholamines was investigated. The selectivity coefficients obtained for dopamine and noradrenaline in the presence of ascorbic acid were 3.5 10 À4 and 2.5 10 À3 , respectively.

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Proton transfer across liquid∣liquid interfaces facilitated by the disproportionation reaction of a lutetium bisphthalocyanine: A voltammetric study at the microinterfaces between water and nitrobenzene or 1,6-dichlorohexane

Cited by 19 publications

References 42 publications

Hydrogen Evolution at Liquid|Liquid Interfaces Catalyzed by 2D Materials

Hydrogen Evolution at Liquid|Liquid Interfaces Catalyzed by 2D Materials

Electron transfer between a lutetium bisphthalocyanine and FeIII/II across liquid|liquid interfaces between water and dichlorohexane or nitrobenzene; influence of coupling with ion transfer

Electrochemical Sensing of Catecholamines at the Water/ 1,6‐Dichlorohexane Interface

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