Electrochemical Reduction of Oxygen on Multiwalled Carbon Nanotube Modified Glassy Carbon Electrodes in Acid Media

Alexeyeva, Nadezda; Tammeveski, Kaido

doi:10.1149/1.2713657

Cited by 82 publications

(57 citation statements)

References 29 publications

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“…It was shown on the basis of the RDE results that acid treatment of MWCNTs has a strong effect on the electrocatalytic activity for O 2 reduction in acid solution. The half-wave potential shifted more than 250 mV in the negative direction upon MWCNTs treatment in acids [38]. This shift is related to the removal of catalyst impurities from MWCNTs.…”

Section: Cyclic Voltammetry (Cv)mentioning

confidence: 93%

Electroreduction of oxygen on gold nanoparticle/PDDA-MWCNT nanocomposites in acid solution

Alexeyeva

Tammeveski

2008

Analytica Chimica Acta

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Section: Cyclic Voltammetry (Cv)mentioning

confidence: 93%

Electroreduction of oxygen on gold nanoparticle/PDDA-MWCNT nanocomposites in acid solution

Alexeyeva

Tammeveski

2008

Analytica Chimica Acta

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“…The pair of peaks centred at about 0.4 V is related to the oxidation and reduction of oxygen-containing species on the carbon surface, which were probably quinone-type groups. [71] In alkaline solution the processes related to Au surface oxidation and reduction are also evident. The anodic wave commenced at E > 0.1 V and the cathodic peak of Au oxide reduction is centred at approximately 0.05 V (Figure 5 b).…”

Section: Cyclic Voltammetry Of Au/c Catalystsmentioning

confidence: 99%

Shape‐Dependent Electrocatalysis: Oxygen Reduction on Carbon‐Supported Gold Nanoparticles

et al. 2014

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Cubic, octahedral and quasi‐spherical (two different particle sizes) Au nanoparticles are synthesised and dispersed in a carbon‐black powder. The size and morphology of the Au nanocatalysts is confirmed by transmission electron microscopy and X‐ray diffraction. Au nanospheres are approximately 5 and 30 nm in diameter, whereas the size of Au octahedra and nanocubes is approximately 40–45 nm. The electrocatalytic activity of these carbon‐supported particles towards the oxygen reduction reaction (ORR) is studied in 0.5 M H2SO4 and 0.1 M KOH solutions by using the rotating‐disk‐electrode method. The specific activity (SA) for O2 reduction is measured, and the highest SA is observed for Au nanocubes supported on carbon. The highest mass activities are found for the smallest Au nanoparticles. Tafel analysis suggests that the mechanism of the ORR on shape‐controlled Au/C catalysts is the same as on bulk Au.

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“…The ORR electrocatalytic activity of the Nafion-coated GC electrode is very low in acid media [63] and therefore, the activity of the thin-film electrodes is due to the deposited Au nanoparticles only. Fig.…”

Section: Oxygen Reduction In 05 M H 2 Somentioning

confidence: 99%

Electrochemical reduction of oxygen on nanostructured gold electrodes

Sarapuu

Nurmik

Mändar

et al. 2008

Journal of Electroanalytical Chemistry

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Electrochemical Reduction of Oxygen on Multiwalled Carbon Nanotube Modified Glassy Carbon Electrodes in Acid Media

Cited by 82 publications

References 29 publications

Electroreduction of oxygen on gold nanoparticle/PDDA-MWCNT nanocomposites in acid solution

Electroreduction of oxygen on gold nanoparticle/PDDA-MWCNT nanocomposites in acid solution

Shape‐Dependent Electrocatalysis: Oxygen Reduction on Carbon‐Supported Gold Nanoparticles

Electrochemical reduction of oxygen on nanostructured gold electrodes

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