Effect of silver particles deposited at the water∣nitrobenzene interface on the voltammetric response of thin-film electrodes

Mirčeski, Valentin

doi:10.1016/j.elecom.2005.10.030

Cited by 7 publications

(6 citation statements)

References 37 publications

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“…Electron transfer and photoinduced electron transfer have been also observed on ITIES or theoretically treated [46,47,117,120,124,188,189] , as well as electrochemical catalysis [190,191] adsorption [150,157,192,193] and electrodeposition. [194][195][196][197][198][199][200][201][202][203][204][205] Newer techniques have been more recently applied to ITIES, such as the quartz crystal microbalance [206] and scanning electrochemical microscopy on liquid|liquid interfaces. [41,42,152,207,208] Although the field of liquid|liquid electrochemistry is still relatively new, more scientists are finding its results or methodology relevant and important to their own work.…”

Section: Analytical Applicationsmentioning

confidence: 99%

Electrocatalysis at Liquid–Liquid Interfaces

Samec

2011

Catalysis in Electrochemistry

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Le transfert assisté de protons utilisant deux porphyrines "base libre" telles que le H 2 TPP et H 2 OEP a été étudié à l'interface eau|1,2-DCE. La formation de di-acid H 4 TPP 2+ et H 4 OEP 2+ , liée à la double protonation de H 2 TPP et H 2 OEP au niveau des nitrogènes tertiaires dans le cycle, a été observée à l'interface par voltamétrie du transfert d'ions ainsi que par spectroscopie en UV visible. De plus, les derivés neutres et ionisées de H 2 TPP ont été déterminés dans le "diagramme de partition ionique" pour illustrer les diverses contributions de H 2 TPP.

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Section: Analytical Applicationsmentioning

confidence: 99%

Electrocatalysis at Liquid–Liquid Interfaces

Samec

2011

Catalysis in Electrochemistry

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“…It is a general belief that nanocrystals anchored to surfaces in the form of film may have potential use in nanodevices [22][23][24][25][26][27]. Recently, silver film was also produced by irradiation [28].…”

Section: Introductionmentioning

confidence: 98%

“…Chemical methods such as chemical vapor deposition employ milder conditions. Recently, liquid-liquid interfaces have been exploited for the preparation of thin films, as interfaces between immiscible liquid are known to be ideal for assembling colloidal particle [16,[21][22][23][24][25]. Interfaces are the boundary regions that separate different bulk regions of matter.…”

Section: Introductionmentioning

confidence: 99%

Phase-transfer and film formation of silver nanoparticles

Sarkar

Chadha

Biswas

et al. 2009

Journal of Colloid and Interface Science

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“…Thus, the second limiting situation, represented by reactions 1 and 3, is termed a heterogeneous catalytic mechanism (Scheme B). The latter mechanism has been frequently encountered experimentally. − Recently, using the method of finite differences, the heterogeneous catalytic mechanism has been simulated under conditions of linear scan voltammetry …”

Section: Introductionmentioning

confidence: 99%

Homogeneous versus Heterogeneous Catalysis at Electrodes Modified with a Thin Organic Layer: Theoretical and Experimental Study under Conditions of Square-Wave Voltammetry

et al. 2007

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A catalytic mechanism at thin film-modified electrodes is studied both theoretically and experimentally under conditions of square-wave voltammetry (SWV). The electrode system considered consists of a solid electrode covered with an electrochemically inactive thin film (e.g., a layer of a water-immiscible organic solvent) containing a neutral redox probe (R 1 ). The modified electrode is immersed in an electrolyte solution (typically an aqueous electrolyte solution) that contains a second redox probe (R 2 ) present in large excess compared to R 1 . The product of the assumed one-electron electrode reaction O 1 + , confined within the film, is transformed back to initial reactant R 1 by means of a catalytic redox reaction with R 2 . If the permeation of R 2 in the thin film is significant, then the catalytic reaction is a homogeneous process confined within the boundaries of the thin film. Otherwise, the catalytic reaction is a heterogeneous process involving electron transfer across the interface between the thin film and the electrolyte solution. Simple numerical solutions for both mechanisms have been derived with the aid of the step-function-modified method (Mirc ˇeski, V. J. Electroanal. Chem. 2003, 545, 29), and a comparative analysis of their theoretical voltammetric responses has been performed. SWV provides clear criterions for discriminating between two mechanisms. The studied catalytic mechanisms are of particular importance for assessing the electron transfer across the interface between two immiscible liquids by means of thin-organic-film-modified electrodes. Theoretical predictions have been confirmed by experiments with lutetium bis(tetra-t-butylphthalocyaninato) as a redox probe dissolved in a thin nitrobenzene film deposited on the surface of an edge-plane pyrolytic graphite electrode in contact with an aqueous solution of [Fe(CN) 6 ] 3or [Fe(CN) 6 ] 4-.

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Effect of silver particles deposited at the water∣nitrobenzene interface on the voltammetric response of thin-film electrodes

Cited by 7 publications

References 37 publications

Electrocatalysis at Liquid–Liquid Interfaces

Electrocatalysis at Liquid–Liquid Interfaces

Phase-transfer and film formation of silver nanoparticles

Homogeneous versus Heterogeneous Catalysis at Electrodes Modified with a Thin Organic Layer: Theoretical and Experimental Study under Conditions of Square-Wave Voltammetry

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