Structural effects in electrocatalysis

Adić, R.R.; Marković, Nenad M.; Vesović, V.

doi:10.1016/s0022-0728(84)80090-x

Cited by 181 publications

(48 citation statements)

References 26 publications

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“…5 and 6, one may see its excellent activity, which is, according to the literature [30,31,46], close to mostly active, Au(1 0 0) monocrystal plane. The distinctive behavior of the Au/TiO 2 layer in comparison to Au(1 0 0) plane, is very reduced drop in limiting current density in the potential interval (−0.8 to −0.4 V) related to the peroxide ion desorption from gold surface [41,46].…”

Section: Kinetics Of Oxygen Reductionsupporting

confidence: 53%

“…To save platinum, much effort was invested to enhance its catalytic effectiveness, either by dispersing it on high surface area carbon support [27,28], or by alloying it with less noble metals [28], as well as by searching for SMSI activation [1,10]. Furthermore, some other metals, for example Ag and Au, under determined circumstances, may display effectiveness in oxygen reduction close to that of platinum [29][30][31].…”

Section: Introductionmentioning

confidence: 99%

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Oxygen reduction reaction on spontaneously and potentiodynamically formed Au/TiO2 composite surfaces

Jašin

Abu-Rabi

Mentus³

et al. 2007

Electrochimica Acta

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Section: Kinetics Of Oxygen Reductionsupporting

confidence: 53%

Section: Introductionmentioning

confidence: 99%

Oxygen reduction reaction on spontaneously and potentiodynamically formed Au/TiO2 composite surfaces

Jašin

Abu-Rabi

Mentus³

et al. 2007

Electrochimica Acta

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“…26 The third wave is attributed to the oxygen reduction onto ZnO film that is formed during the previous cathodic processes on the gold surface.…”

Section: Resultsmentioning

confidence: 99%

Electrodeposition of ZnO from DMSO solution: influence of anion nature and its concentration in the nucleation and growth mechanisms

Riveros

Ramírez

Tello

et al. 2012

J. Braz. Chem. Soc.

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A influência da natureza aniônica e sua concentração na eletrodeposição de ZnO em um eletrodo de ouro de soluções de dimetilsulfóxido (DMSO) foi estudada. Experimentos voltamétricos mostraram alterações importantes no processo de eletrodeposição de óxido de zinco dependendo do ânion empregado como eletrólito. A partir de experimentos de cronoamperometria, as correspondentes curvas corrente-tempo foram ajustadas com diferentes modelos de mecanismos de nucleação e crescimento. A análise destes resultados mostrou a mudança de um crescimento instantâneo para um progressivo quando a composição da solução foi mudada de ZnCl 2 para ZnCl 2 + LiCl. A modificação do mecanismo está associada à adsorção de íon cloreto nos sítios ativos da superfície do eletrodo quando LiCl está presente na solução.The influence of the anion nature and its concentration in the electrodeposition of ZnO onto a gold electrode from dimethylsulfoxide (DMSO) solutions was studied. Voltammetric experiments revealed important changes in the zinc oxide electrodeposition process depending on the employed anion as electrolyte. From chronoamperometric experiments, the corresponding current-time curves were fitted with different nucleation and growth mechanism models. The analysis of these results showed changes from an instantaneous to a progressive growth when the solution composition was changed from ZnCl 2 to ZnCl 2 + LiCl. The change of the mechanism is associated to the adsorption of chloride ion on the active sites of the electrode surface when LiCl is present in the solution.

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“…Numerous studies deal with electrocatalytic oxidation of organics on noble metals such as gold, platinum, iridium, palladium, osmium, silver, rhodium or ruthenium . For example, among those metals, gold is characterized by its good electrocatalytic activity in alkaline and neutral environments [1][2][3][4][5][6][7][8][9][10][11][12][13], whereas platinum is the most active in acid media [1,14,15]. Oxidation of organic substances at platinum is accompanied by a characteristic, though highly undesirable, effect of surface blocking by strongly adsorbed intermediate species [15].…”

Section: Introductionmentioning

confidence: 99%

Effect of Gold Modification with 3-Mercaptopropionic Acid, Cysteamine and Gold Nanoparticles on Monoethanolamine Electrooxidation

2015

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In this work, a gold electrode modified with selfassembled layers (SAMs) composed of 3-mercaptopropionic acid, cysteamine and gold nanoparticles was prepared. The electrode with SAMs endowed with gold nanoparticles gave the high catalytic effect for monoethanolamine (MEA) electrooxidation in solution at pH 7. For this novel sensor, a linear relationship between the current response of MEA at the potential of peak maximum (j p ) and the concentration of this compound in solution (c MEA ) was found, over the range 0.1 μM to 0.8 M with the detection sensitivity equal to about 5 A cm −2 mol −1 dm 3 (at v=0.1 V s −1 ) and the detection limit of 0.046 μM.

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Structural effects in electrocatalysis

Cited by 181 publications

References 26 publications

Oxygen reduction reaction on spontaneously and potentiodynamically formed Au/TiO2 composite surfaces

Oxygen reduction reaction on spontaneously and potentiodynamically formed Au/TiO2 composite surfaces

Electrodeposition of ZnO from DMSO solution: influence of anion nature and its concentration in the nucleation and growth mechanisms

Effect of Gold Modification with 3-Mercaptopropionic Acid, Cysteamine and Gold Nanoparticles on Monoethanolamine Electrooxidation

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