Simple Electrocatalytic Proof of the Intact Emersion of the Electrochemical Double Layer

Couto, Andréa Boldarini; Pérez, M.C.; Rincón, A.; Gutiérrez, C.

doi:10.1021/la961012u

Cited by 3 publications

(2 citation statements)

References 10 publications

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“…Our group actively investigates this rather unique phenomenon since 1991 [2][3][4][5][6][7][8][9][10], our work and that of other groups having amply confirmed this result, both on polycrystalline [2][3][4][5][6][7][8] and single-crystal [9][10][11][12][13][14] Pt electrodes.…”

Section: Introductionsupporting

confidence: 53%

Potential dependence of the saturation CO coverage of Pt electrodes: The origin of the pre-peak in CO-stripping voltammograms. Part 3: Pt(poly)

López-Cudero

Cuesta

Gutiérrez

2006

Journal of Electroanalytical Chemistry

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150

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Section: Introductionsupporting

confidence: 53%

Potential dependence of the saturation CO coverage of Pt electrodes: The origin of the pre-peak in CO-stripping voltammograms. Part 3: Pt(poly)

López-Cudero

Cuesta

Gutiérrez

2006

Journal of Electroanalytical Chemistry

Self Cite

171

150

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“…3). RHE is assigned to the formation of linearly adsorbed CO (CO ads ) [22,23]. This band appears positive from +0.200 V vs RHE, shifts by 51.5 cm -1 V -1 (not linearly) towards lower wavenumbers between +0.200 V and +0.750 V vs RHE and stabilizes at 2052 cm -1 at higher potentials.…”

Section: Resultsmentioning

confidence: 98%

Revisited Mechanisms for Glucose Electrooxidation at Platinum and Gold Nanoparticles

et al. 2022

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The electrooxidation of glucose on gold (Au) and platinum (Pt) nanoparticles (NPs) is investigated in alkaline medium by cyclic voltammetry after chronoamperometry at different potentials (+0.100 V, +0.200 V and +0.400 V vs the reversible hydrogen electrode, RHE), in situ Fourier transform infrared spectroscopy and differential electrochemical mass spectrometry measurements. We show that glucose can adsorb on both metallic Au and Pt surfaces at low potentials, but that the adsorbed species are different: hydrogen atoms, carbon monoxide (CO), lactones and gluconate species on Pt-NPs, and only hydrogen atoms and gluconate species on Au-NPs. On Pt-NPs, the first oxidation peak between +0.050 V vs RHE and +0.250 V vs RHE is due to glucose adsorption and hydrogen atoms oxidation into protons (H + ), whereas the second electrochemical feature between +0.250 V vs RHE and +0.800 V vs RHE is due to the oxidation of glucose into lactone, gluconate and of adsorbed CO into carbon dioxide (CO 2 ). For Au-NPs, adsorbed hydrogen atoms are not oxidized into H + but transformed into molecular hydrogen H 2 , and glucose is adsorbed as gluconate species that are desorbed into gluconates for potentials higher than +0.300 V vs RHE.

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CO Adsorption on Platinum Electrodes

Cuesta

Gutiérrez

2011

Catalysis in Electrochemistry

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Simple Electrocatalytic Proof of the Intact Emersion of the Electrochemical Double Layer

Cited by 3 publications

References 10 publications

Potential dependence of the saturation CO coverage of Pt electrodes: The origin of the pre-peak in CO-stripping voltammograms. Part 3: Pt(poly)

Potential dependence of the saturation CO coverage of Pt electrodes: The origin of the pre-peak in CO-stripping voltammograms. Part 3: Pt(poly)

Revisited Mechanisms for Glucose Electrooxidation at Platinum and Gold Nanoparticles

CO Adsorption on Platinum Electrodes

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