The mechanism of the reduction of Zn(II) from NaClO4 base electrolyte solutions at the DME

Andreu, Rafael; Sluyters‐Rehbach, M.; Remijnse, A. G.; Sluyters, J.H.

doi:10.1016/s0022-0728(82)85030-4

Cited by 101 publications

(83 citation statements)

References 18 publications

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“…It was discussed earlier both on the theoretical 36,37 and experimental levels. Sluyters et al 38,39 investigated the mechanism of electroreduction of Zn 2+ ions. They found that the logarithmic dependence of the rate constant vs. electrode potential has nonlinear character.…”

Section: Introductionmentioning

confidence: 99%

Experimental and Theoretical Studies of Anionic Surfactants Activity at Metal/Solution Interface: The Influence of Temperature and Hydrocarbon Chain Length of Surfactants on the Zinc Ions Electroreduction Rate

Nieszporek

2018

Bulletin of the Chemical Society of Japan

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The effect of concentration of two anionic surfactants sodium 1-octanesulfonate and sodium 1-decanesulfonate in the temperature range 288318 K on the kinetics and mechanism of electroreduction of Zn 2+ ions was studied using electrochemical impedance spectroscopy (eis) and other electrochemical methods. It was found that the process of electroreduction proceeds in two steps. To describe the mechanism of Zn 2+ amalgamation, the Fawcett's models were considered: CE (chemical step C, electron transfer step E), IE (ion transfer step I, electron transfer step E) and IA (ion transfer step I, adsorption step A). The results of theoretical investigations suggest that the IE model is the most probable mechanism of the process. Both surfactants were found to exert a catalytic effect on the analyzed electrode process. The accelerating abilities of the surfactants were found to increase with the growth of the length of their hydrocarbon chain and with the increase of temperature. The observations concerning the mechanism of the electrode reaction and its acceleration caused by surfactants were confirmed by the parameters calculated from temperature dependencies.

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Section: Introductionmentioning

confidence: 99%

Experimental and Theoretical Studies of Anionic Surfactants Activity at Metal/Solution Interface: The Influence of Temperature and Hydrocarbon Chain Length of Surfactants on the Zinc Ions Electroreduction Rate

Nieszporek

2018

Bulletin of the Chemical Society of Japan

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“…The electroreduction of zn2+ at a mercury electrode has been studied in aqueous (1)(2)(3)(4)(5)(6)(7)(8)(9)(10)(11)(12)(13), nonaqueous (14)(15)(16)(17)(18)(19)(20), and [5] zn2+b ++ zn2+, mixed solutions (21)(22)(23)(24)(25). In non-complexing media this reaction can be described as:…”

Section: Introductionmentioning

confidence: 99%

Kinetics of electroreduction of Zn²⁺ at mercury in nonaqueous solutions

Manzini¹,

Lasia²

1994

Can. J. Chem.

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MARILEA MANZINI and ANDRZEI LASIA. Can. J. Chem. 72, 1691 (1994). The electroreduction of Zn' + was studied in propylene carbonate (PC), acetonitrile (ACN), and hexamethylphosphorarnide (HMPA) on mercury at various concentrations of tetraethylammonium perchlorate as a supporting electrolyte using dc polarography, cyclic voltammetry, chronoamperometry, and ac polarography. It was found that in PC and ACN the electroreduction process proceeds in one step. In HMPA, however, the electroreduction proceeds through a CEE mechanism in which a chemical reaction is followed by a charge transfer in two steps. The heterogeneous rate constants, corrected for the double layer effects, decrease with increase in the solvent donor number. The electroreduction process proceeds through the cation transfer mechanism.MARILEA MANZINI et ANDRZEJ LASIA. Can. J. Chern. 72, 1691 (1994). L'ClectrorCduction du Zn2+ a Ct C 6tudiC dans le carbonate de propylene (PC), llacCtonitrile (ACN) et 1'hexarnCthylphosphoramide (HMPA) sur une Clectrode de mercure en presence de concentrations diffirentes de perchlorate de tCtraethylammonium en utilisant la polarographie classique, la voltampCromCtrie cyclique, la chronoamperomCtrie et la polarographie ac. Notre etude a demontrC que dans le PC et 1'ACN 1'ClectrorCduction procbde en une ttape. Dans le HMPA la reduction procbde par le micanisme CEE dans lequel la reaction chimique est suivie par deux hansferts de charge distincts. Les constantes de vitesse hCttrogbnes, conigtes pour les effets de la double couche Clectrique, diminuent avec le nombre donneur de solvant. 12'tlectrorCduction procbde par le mCcanisme de transfert de cation.[Traduit par la rtdaction]

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“…f and E appeared, which was the result of sudden change in the structure of adsorption layer. The values of the apparent rate constant, were obtained from the chargetransfer resistance [18] as a function of dc potential. The impedance data were analyzed by fitting to the expressions valid in the case of Randles equivalent circuit [19,20].…”

Section: Resultsmentioning

confidence: 99%

The effect of tetramethylthiourea on the Zn2+ ions electroreduction in the presence of different detergents

Klin

Nieszporek

Gugała-Fekner

et al. 2011

Annales UMCS, Chemistry

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The effect of the mixed adsorption layers: tetramethylthiourea and chosen detergent on the Zn 2+ ions electroreduction is described. The detergents concentration was 7.5 10 -4 M, which was lower of its critical micellation point. Three detergents: cationic, neutral and anionic were chosen for this study. First two detergents inhibited the Zn 2+ ions reduction at mercury electrode, the last detergent accelerated this process. Tetramethylthiourea eliminated the inhibiting effect of the detergent and accelerated the studied process stronger than in the detergents absence. Standard rate constants of Zn 2+ ions electroreduction were determined by cyclic voltammetry and impedance measurements

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The mechanism of the reduction of Zn(II) from NaClO4 base electrolyte solutions at the DME

Cited by 101 publications

References 18 publications

Experimental and Theoretical Studies of Anionic Surfactants Activity at Metal/Solution Interface: The Influence of Temperature and Hydrocarbon Chain Length of Surfactants on the Zinc Ions Electroreduction Rate

Experimental and Theoretical Studies of Anionic Surfactants Activity at Metal/Solution Interface: The Influence of Temperature and Hydrocarbon Chain Length of Surfactants on the Zinc Ions Electroreduction Rate

Kinetics of electroreduction of Zn²⁺ at mercury in nonaqueous solutions

The effect of tetramethylthiourea on the Zn2+ ions electroreduction in the presence of different detergents

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The mechanism of the reduction of Zn(II) from NaClO4 base electrolyte solutions at the DME

Cited by 101 publications

References 18 publications

Experimental and Theoretical Studies of Anionic Surfactants Activity at Metal/Solution Interface: The Influence of Temperature and Hydrocarbon Chain Length of Surfactants on the Zinc Ions Electroreduction Rate

Experimental and Theoretical Studies of Anionic Surfactants Activity at Metal/Solution Interface: The Influence of Temperature and Hydrocarbon Chain Length of Surfactants on the Zinc Ions Electroreduction Rate

Kinetics of electroreduction of Zn2+ at mercury in nonaqueous solutions

The effect of tetramethylthiourea on the Zn2+ ions electroreduction in the presence of different detergents

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Kinetics of electroreduction of Zn²⁺ at mercury in nonaqueous solutions