Cyanide-treated Fe(III) porphyrins as an electrocatalytic material for selective H 2S oxidation

Jason Alan Bennett, Marc A. Neiswonger, James E. Pander, Stephanie E. McKinney, Christopher D. Wheeler

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

Electrodeposited Fe(III) meso-Tetra(4-carboxyphenyl) porphyrin with cyanide ligands coordinated to the central iron ion is being investigated as a possible material capable of selectively oxidizing H 2S in the presence of CO and NO in physiologically relevant solutions. Preliminary results suggest this to be a very attractive material as it oxidizes H 2S at low potentials while exhibiting minimal activity towards both CO and NO. However certain results suggest that the Fe may not be completely coordinated with cyanide ligands. This may explain the limitations of the material at elevated H 2S concentrations and imperfect selectivity over the interfering gases. Additionally, a cathodic-post run treatment is suggested in order to maintain the electrochemical activity of the porphyrin-modified electrode surface by stripping any S 0 that deposits on the electrode surface during the H 2S oxidation.

Original languageEnglish (US)
Title of host publicationFullerenes, Nanotubes, and Carbon Nanostructures - 219th ECS Meeting
Pages137-145
Number of pages9
Volume35
Edition25
DOIs
StatePublished - Dec 1 2011
Event219th ECS Meeting - Montreal, QC, Canada
Duration: May 1 2011May 6 2011

Other

Other219th ECS Meeting
CountryCanada
CityMontreal, QC
Period5/1/115/6/11

Fingerprint

Cyanides
Porphyrins
Oxidation
Ligands
Electrodes
Deposits
Iron
Ions
Gases

All Science Journal Classification (ASJC) codes

  • Engineering(all)

Cite this

Bennett, J. A., Neiswonger, M. A., Pander, J. E., McKinney, S. E., & Wheeler, C. D. (2011). Cyanide-treated Fe(III) porphyrins as an electrocatalytic material for selective H 2S oxidation. In Fullerenes, Nanotubes, and Carbon Nanostructures - 219th ECS Meeting (25 ed., Vol. 35, pp. 137-145) https://doi.org/10.1149/1.3655519
Bennett, Jason Alan ; Neiswonger, Marc A. ; Pander, James E. ; McKinney, Stephanie E. ; Wheeler, Christopher D. / Cyanide-treated Fe(III) porphyrins as an electrocatalytic material for selective H 2S oxidation. Fullerenes, Nanotubes, and Carbon Nanostructures - 219th ECS Meeting. Vol. 35 25. ed. 2011. pp. 137-145
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Bennett, JA, Neiswonger, MA, Pander, JE, McKinney, SE & Wheeler, CD 2011, Cyanide-treated Fe(III) porphyrins as an electrocatalytic material for selective H 2S oxidation. in Fullerenes, Nanotubes, and Carbon Nanostructures - 219th ECS Meeting. 25 edn, vol. 35, pp. 137-145, 219th ECS Meeting, Montreal, QC, Canada, 5/1/11. https://doi.org/10.1149/1.3655519

Cyanide-treated Fe(III) porphyrins as an electrocatalytic material for selective H 2S oxidation. / Bennett, Jason Alan; Neiswonger, Marc A.; Pander, James E.; McKinney, Stephanie E.; Wheeler, Christopher D.

Fullerenes, Nanotubes, and Carbon Nanostructures - 219th ECS Meeting. Vol. 35 25. ed. 2011. p. 137-145.

Research output: Chapter in Book/Report/Conference proceedingConference contribution

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Bennett JA, Neiswonger MA, Pander JE, McKinney SE, Wheeler CD. Cyanide-treated Fe(III) porphyrins as an electrocatalytic material for selective H 2S oxidation. In Fullerenes, Nanotubes, and Carbon Nanostructures - 219th ECS Meeting. 25 ed. Vol. 35. 2011. p. 137-145 https://doi.org/10.1149/1.3655519