Characterization of chemically modified carbonaceous electrode materials by diffuse reflectance Fourier transform infrared spectrometry

Ianniello, Robert M.; Wieck, Henry J.; Yacynych, Alexander M.

doi:10.1021/ac00263a014

Cited by 27 publications

(8 citation statements)

References 21 publications

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“…30 IR spectra of activated carbon and subsequently functionalized carbon particles by diffused reflectance infra-red spectroscopy (DRIFT) have been reported. 31 In this paper, we report the preparation, and electrochemical and spectroscopic (XPS as well as FTIR) characterization of quinone functionalized exfoliated graphite electrodes. A preliminary study on the electrocatalysis of ascorbic acid oxidation has also been carried out.…”

Section: Introductionmentioning

confidence: 99%

Electrochemical and spectroscopic characterization of quinone functionalized exfoliated graphite

Palanisamy

Sampath

2001

Analyst

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Natural graphite was exfoliated by thermal decomposition of graphite-bisulfate intercalation compound. Oxidative/reductive pre-treatment of exfoliated graphite was subsequently carried out to introduce various functional groups on the graphite surface. The resulting material was covalently modified with redox active quinones. The covalent modification was effected through oxygen containing functional groups formed on the graphite surface. The modified exfoliated graphite was characterized by infra-red (FTIR) and X-ray photoelectron spectroscopy (XPS). Electrochemical characterization of the pressed pellets of the modified graphite showed that the modification occurred at the edge sites. These electrodes were found to be very stable and the surface renewal was simply accomplished by polishing the surface using SiC emery sheets. Application of the benzoquinone modified electrode for the electrocatalysis of ascorbic acid oxidation was demonstrated.

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Section: Introductionmentioning

confidence: 99%

Electrochemical and spectroscopic characterization of quinone functionalized exfoliated graphite

Palanisamy

Sampath

2001

Analyst

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“…Several techniques have been described for chemically modifying carbon surfaces − Biomolecules may then be coupled by reaction of their amino groups with the carboxylic groups using an activating reagent, such as a carbodiimide. Conversely, the surface may be derivatized with amino groups which may then be coupled with carboxylic acid functions. ,, In both cases, chemical and/or electrochemical or radio-frequency oxygen plasma oxidative pretreatments of the electrodes are required and result in a dramatic roughening of the surface .…”

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Facile Derivatization of Glassy Carbon Surfaces by N-Hydroxysuccinimide Esters in View of Attaching Biomolecules

et al. 1998

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The reaction of N-hydroxysuccinimide (NHS) esters with freshly polished glassy carbon surfaces offers a facile and versatile method of derivatization. Surface concentrations larger than 10-10 mol/cm2 can thus be easily achieved. They can be further increased when polishing is carried out in the presence of ammonia, which also improves their reproducibility. It is shown that the derivatization results from the formation of a covalent peptide linkage by reaction of the NHS ester with superficial amino groups on the glassy carbon surface. The peptide linkage is remarkably stable in time and can only be hydrolyzed in very strong basic media. 9-fluorenylmethoxycarbonyl chloride protection, followed by preparation of the NHS ester, by surface derivatization and by mild deprotection allows the grafting of a molecule that contains an amino group located remotely from the electrode surface, thus opening a route to the attachment of a large variety of biomolecules, for which NHS esters are available, in a position where their degradation should be avoided or minimized.

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“…To data, IR studies of these opaque carbonaceous materials have been limited to surface functional groups on carbon blacks,81•82 activated carbons,83"85 carbon films,86•87 coals,88•89 and carbonaceous electrode materials. 90 No IR investigation of C-supported metals has been reported (67) Lin, S. C; Phillips, J. J. Appl. Phys.…”

Section: Discussionmentioning

confidence: 99%

An investigation of the decomposition of osmium carbonyl clusters on carbon using diffuse reflectance Fourier transform IR spectroscopy

Venter¹,

Vannice²

1989

J. Am. Chem. Soc.

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Characterization of chemically modified carbonaceous electrode materials by diffuse reflectance Fourier transform infrared spectrometry

Cited by 27 publications

References 21 publications

Electrochemical and spectroscopic characterization of quinone functionalized exfoliated graphite

Electrochemical and spectroscopic characterization of quinone functionalized exfoliated graphite

Facile Derivatization of Glassy Carbon Surfaces by N-Hydroxysuccinimide Esters in View of Attaching Biomolecules

An investigation of the decomposition of osmium carbonyl clusters on carbon using diffuse reflectance Fourier transform IR spectroscopy

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