Characterisation and application of a novel cell for mechanistic electrochemistry at elevated temperatures

Gregory G. Wildgoose; Nathan S. Lawrence; Barry A. Coles; Li Jiang; Timothy G. J. Jones; Richard G. Compton

doi:10.1039/b307900g

Characterisation and application of a novel cell for mechanistic electrochemistry at elevated temperatures

Gregory G. Wildgoose, Nathan S. Lawrence, Barry A. Coles, Li Jiang, Timothy G. J. Jones, Richard G. Compton

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

5 Citations (Scopus)

Abstract

A novel high temp. cell capable of measuring electrochem. signals up to temps. of 115° is reported. Characterization of the cell was undertaken by examg. 3 differing systems. First the voltammetric response of a range of simple redox systems in both aq. and nonaq. media was recorded to deduce the activation energies for diffusion of these mols. Next the steady state linear sweep voltammetric response of N,N,N',N'-tetramethyl-p-phenylenediamine (TMPD) in DMSO is assessed as a means of studying an inferred structural change of the solvent at elevated temps. A change in the activation energy for diffusion from 13 kJ mol-1 to 27 kJ mol-1 was obsd. as the temp. was raised. Finally, the electrochem. catalyzed reaction of the radical cation TMPD+.bul. with ascorbic acid was studied from 25° to 107°; the corresponding kinetic parameters are deduced. [on SciFinder(R)]

Original language	English
Pages (from-to)	4219-4225
Number of pages	7
Journal	Physical Chemistry Chemical Physics
Volume	5
DOIs	https://doi.org/10.1039/b307900g
Publication status	Published - 2003

Keywords

electrochem oxidn tetramethylphenylenediamine reaction cation radical ascorbic acid cell
voltammetry cell reaction mechanism kinetics elevated temp
activation energy diffusion electrochem cell
cell mechanistic electrochem elevated temp

Access to Document

10.1039/b307900g

Cite this

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title = "Characterisation and application of a novel cell for mechanistic electrochemistry at elevated temperatures",

abstract = "A novel high temp. cell capable of measuring electrochem. signals up to temps. of 115° is reported. Characterization of the cell was undertaken by examg. 3 differing systems. First the voltammetric response of a range of simple redox systems in both aq. and nonaq. media was recorded to deduce the activation energies for diffusion of these mols. Next the steady state linear sweep voltammetric response of N,N,N',N'-tetramethyl-p-phenylenediamine (TMPD) in DMSO is assessed as a means of studying an inferred structural change of the solvent at elevated temps. A change in the activation energy for diffusion from 13 kJ mol-1 to 27 kJ mol-1 was obsd. as the temp. was raised. Finally, the electrochem. catalyzed reaction of the radical cation TMPD+.bul. with ascorbic acid was studied from 25° to 107°; the corresponding kinetic parameters are deduced. [on SciFinder(R)]",

keywords = "electrochem oxidn tetramethylphenylenediamine reaction cation radical ascorbic acid cell, voltammetry cell reaction mechanism kinetics elevated temp, activation energy diffusion electrochem cell, cell mechanistic electrochem elevated temp",

author = "Wildgoose, {Gregory G.} and Lawrence, {Nathan S.} and Coles, {Barry A.} and Li Jiang and Jones, {Timothy G. J.} and Compton, {Richard G.}",

year = "2003",

doi = "10.1039/b307900g",

language = "English",

volume = "5",

pages = "4219--4225",

journal = "Physical Chemistry Chemical Physics",

issn = "1463-9076",

publisher = "Royal Society of Chemistry",

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T1 - Characterisation and application of a novel cell for mechanistic electrochemistry at elevated temperatures

AU - Wildgoose, Gregory G.

AU - Lawrence, Nathan S.

AU - Coles, Barry A.

AU - Jiang, Li

AU - Jones, Timothy G. J.

AU - Compton, Richard G.

PY - 2003

Y1 - 2003

N2 - A novel high temp. cell capable of measuring electrochem. signals up to temps. of 115° is reported. Characterization of the cell was undertaken by examg. 3 differing systems. First the voltammetric response of a range of simple redox systems in both aq. and nonaq. media was recorded to deduce the activation energies for diffusion of these mols. Next the steady state linear sweep voltammetric response of N,N,N',N'-tetramethyl-p-phenylenediamine (TMPD) in DMSO is assessed as a means of studying an inferred structural change of the solvent at elevated temps. A change in the activation energy for diffusion from 13 kJ mol-1 to 27 kJ mol-1 was obsd. as the temp. was raised. Finally, the electrochem. catalyzed reaction of the radical cation TMPD+.bul. with ascorbic acid was studied from 25° to 107°; the corresponding kinetic parameters are deduced. [on SciFinder(R)]

AB - A novel high temp. cell capable of measuring electrochem. signals up to temps. of 115° is reported. Characterization of the cell was undertaken by examg. 3 differing systems. First the voltammetric response of a range of simple redox systems in both aq. and nonaq. media was recorded to deduce the activation energies for diffusion of these mols. Next the steady state linear sweep voltammetric response of N,N,N',N'-tetramethyl-p-phenylenediamine (TMPD) in DMSO is assessed as a means of studying an inferred structural change of the solvent at elevated temps. A change in the activation energy for diffusion from 13 kJ mol-1 to 27 kJ mol-1 was obsd. as the temp. was raised. Finally, the electrochem. catalyzed reaction of the radical cation TMPD+.bul. with ascorbic acid was studied from 25° to 107°; the corresponding kinetic parameters are deduced. [on SciFinder(R)]

KW - electrochem oxidn tetramethylphenylenediamine reaction cation radical ascorbic acid cell

KW - voltammetry cell reaction mechanism kinetics elevated temp

KW - activation energy diffusion electrochem cell

KW - cell mechanistic electrochem elevated temp

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DO - 10.1039/b307900g

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EP - 4225

JO - Physical Chemistry Chemical Physics

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SN - 1463-9076

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