Metalloporphyrin containing carbon paste electrodes

Esther S. Takeuchi; Royce W. Murray

doi:10.1016/S0022-0728(85)80049-8

Metalloporphyrin containing carbon paste electrodes

Esther S. Takeuchi
, Royce W. Murray

Materials Science and Engineering

University of North Carolina at Chapel Hill

Research output: Contribution to journal › Article › peer-review

45 Scopus citations

Abstract

Iron and manganese tetraphenylporphyrin chlorides can be dissolved in 1-nonanol and mixed into a carbon paste electrode which in aqueous buffer exhibits the classic metal(III/II) cyclic voltammetry. The voltammetric formal potential shifts negatively by 60 mV/pH unit, and enhanced, electrocatalytic currents are observed in the presence of dioxygen. Analysis of the chronoamperometric behavior of porphyrin-containing carbon pastes reveals a short-time linear/semi-infinite diffusion response which at longer times shows evidence of thin film (finite diffusion) reactant depletion at the carbon paste-water interface.

Original language	English
Pages (from-to)	49-57
Number of pages	9
Journal	Journal of Electroanalytical Chemistry
Volume	188
Issue number	1-2
DOIs	https://doi.org/10.1016/S0022-0728(85)80049-8
State	Published - Jun 25 1985

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title = "Metalloporphyrin containing carbon paste electrodes",

abstract = "Iron and manganese tetraphenylporphyrin chlorides can be dissolved in 1-nonanol and mixed into a carbon paste electrode which in aqueous buffer exhibits the classic metal(III/II) cyclic voltammetry. The voltammetric formal potential shifts negatively by 60 mV/pH unit, and enhanced, electrocatalytic currents are observed in the presence of dioxygen. Analysis of the chronoamperometric behavior of porphyrin-containing carbon pastes reveals a short-time linear/semi-infinite diffusion response which at longer times shows evidence of thin film (finite diffusion) reactant depletion at the carbon paste-water interface.",

author = "Takeuchi, \{Esther S.\} and Murray, \{Royce W.\}",

year = "1985",

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doi = "10.1016/S0022-0728(85)80049-8",

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AU - Takeuchi, Esther S.

AU - Murray, Royce W.

PY - 1985/6/25

Y1 - 1985/6/25

N2 - Iron and manganese tetraphenylporphyrin chlorides can be dissolved in 1-nonanol and mixed into a carbon paste electrode which in aqueous buffer exhibits the classic metal(III/II) cyclic voltammetry. The voltammetric formal potential shifts negatively by 60 mV/pH unit, and enhanced, electrocatalytic currents are observed in the presence of dioxygen. Analysis of the chronoamperometric behavior of porphyrin-containing carbon pastes reveals a short-time linear/semi-infinite diffusion response which at longer times shows evidence of thin film (finite diffusion) reactant depletion at the carbon paste-water interface.

AB - Iron and manganese tetraphenylporphyrin chlorides can be dissolved in 1-nonanol and mixed into a carbon paste electrode which in aqueous buffer exhibits the classic metal(III/II) cyclic voltammetry. The voltammetric formal potential shifts negatively by 60 mV/pH unit, and enhanced, electrocatalytic currents are observed in the presence of dioxygen. Analysis of the chronoamperometric behavior of porphyrin-containing carbon pastes reveals a short-time linear/semi-infinite diffusion response which at longer times shows evidence of thin film (finite diffusion) reactant depletion at the carbon paste-water interface.

UR - https://www.scopus.com/pages/publications/0022084166

U2 - 10.1016/S0022-0728(85)80049-8

DO - 10.1016/S0022-0728(85)80049-8

M3 - Article

AN - SCOPUS:0022084166

SN - 0022-0728

VL - 188

SP - 49

EP - 57

JO - Journal of Electroanalytical Chemistry

JF - Journal of Electroanalytical Chemistry

IS - 1-2

ER -

Metalloporphyrin containing carbon paste electrodes

Abstract

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