In-situ Raman spectroscopy to elucidate the influence of adsorption in graphene electrochemistry

Wesley T. E. van den Beld; Mathieu Odijk; Rene H. J. Vervuurt; Jan-Willem Weber; Ageeth A. Bol; Albert van den Berg; Jan C. T. Eijkel

doi:10.1038/srep45080

In-situ Raman spectroscopy to elucidate the influence of adsorption in graphene electrochemistry

Wesley T. E. van den Beld, Mathieu Odijk, Rene H. J. Vervuurt, Jan-Willem Weber, Ageeth A. Bol, Albert van den Berg, Jan C. T. Eijkel

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Abstract

Electrochemistry on graphene is of particular interest due to graphene’s high surface area, high electrical conductivity and low interfacial capacitance. Because the graphene Fermi level can be probed by its strong Raman signal, information on the graphene doping can be obtained which in turn can provide information on adsorbed atoms or molecules. For this paper, the adsorption analysis was successfully performed using three electroactive substances with different electrode interaction mechanisms: hexaammineruthenium(III) chloride (RuHex), ferrocenemethanol (FcMeOH) and potassium ferricyanide/potassium ferrocyanide (Fe(CN)6). The adsorption state was probed by analysing the G-peak position in the measured in-situ Raman spectrum during electrochemical experiments. We conclude that electrochemical Raman spectroscopy on graphene is a valuable tool to obtain in-situ information on adsorbed species on graphene, isolated from the rest of the electrochemical behaviour.

Original language	English
Article number	45080
Journal	Scientific reports
Volume	7
DOIs	https://doi.org/10.1038/srep45080
Publication status	Published - 24 Mar 2017

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title = "In-situ Raman spectroscopy to elucidate the influence of adsorption in graphene electrochemistry",

abstract = "Electrochemistry on graphene is of particular interest due to graphene{\textquoteright}s high surface area, high electrical conductivity and low interfacial capacitance. Because the graphene Fermi level can be probed by its strong Raman signal, information on the graphene doping can be obtained which in turn can provide information on adsorbed atoms or molecules. For this paper, the adsorption analysis was successfully performed using three electroactive substances with different electrode interaction mechanisms: hexaammineruthenium(III) chloride (RuHex), ferrocenemethanol (FcMeOH) and potassium ferricyanide/potassium ferrocyanide (Fe(CN)6). The adsorption state was probed by analysing the G-peak position in the measured in-situ Raman spectrum during electrochemical experiments. We conclude that electrochemical Raman spectroscopy on graphene is a valuable tool to obtain in-situ information on adsorbed species on graphene, isolated from the rest of the electrochemical behaviour.",

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doi = "10.1038/srep45080",

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T1 - In-situ Raman spectroscopy to elucidate the influence of adsorption in graphene electrochemistry

AU - van den Beld, Wesley T. E.

AU - Odijk, Mathieu

AU - Vervuurt, Rene H. J.

AU - Weber, Jan-Willem

AU - Bol, Ageeth A.

AU - van den Berg, Albert

AU - Eijkel, Jan C. T.

PY - 2017/3/24

Y1 - 2017/3/24

N2 - Electrochemistry on graphene is of particular interest due to graphene’s high surface area, high electrical conductivity and low interfacial capacitance. Because the graphene Fermi level can be probed by its strong Raman signal, information on the graphene doping can be obtained which in turn can provide information on adsorbed atoms or molecules. For this paper, the adsorption analysis was successfully performed using three electroactive substances with different electrode interaction mechanisms: hexaammineruthenium(III) chloride (RuHex), ferrocenemethanol (FcMeOH) and potassium ferricyanide/potassium ferrocyanide (Fe(CN)6). The adsorption state was probed by analysing the G-peak position in the measured in-situ Raman spectrum during electrochemical experiments. We conclude that electrochemical Raman spectroscopy on graphene is a valuable tool to obtain in-situ information on adsorbed species on graphene, isolated from the rest of the electrochemical behaviour.

AB - Electrochemistry on graphene is of particular interest due to graphene’s high surface area, high electrical conductivity and low interfacial capacitance. Because the graphene Fermi level can be probed by its strong Raman signal, information on the graphene doping can be obtained which in turn can provide information on adsorbed atoms or molecules. For this paper, the adsorption analysis was successfully performed using three electroactive substances with different electrode interaction mechanisms: hexaammineruthenium(III) chloride (RuHex), ferrocenemethanol (FcMeOH) and potassium ferricyanide/potassium ferrocyanide (Fe(CN)6). The adsorption state was probed by analysing the G-peak position in the measured in-situ Raman spectrum during electrochemical experiments. We conclude that electrochemical Raman spectroscopy on graphene is a valuable tool to obtain in-situ information on adsorbed species on graphene, isolated from the rest of the electrochemical behaviour.

U2 - 10.1038/srep45080

DO - 10.1038/srep45080

M3 - Article

SN - 2045-2322

VL - 7

JO - Scientific reports

JF - Scientific reports

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In-situ Raman spectroscopy to elucidate the influence of adsorption in graphene electrochemistry

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