Applications of the Channel Flow Cell for UV-Visible Spectroelectrochemical Studies. Part 2: Transient Signals

Rui Lin Wang; Kin Yip Tam; Frank Marken; Richard G. Compton

doi:10.1002/elan.1140090404

Applications of the Channel Flow Cell for UV-Visible Spectroelectrochemical Studies. Part 2: Transient Signals

Rui Lin Wang, Kin Yip Tam, Frank Marken, Richard G. Compton

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

18 Citations (SciVal)

Abstract

The use of the channel flow cell for ultraviolet-visible (UV-vis) spectroelectrochemical experiments has been developed to determine the diffusion coefficients of electrogenerated species by means of monitoring the transient absorbance response resulting from a potential step at a working electrode immediately upstream of the incident spectrophotometric beam. The technique is applied to measure the diffusion coefficient of tris(4-bromophenyl)amine (TBPA) radical cation in acetonitrile at 25°C. It is shown that the diffusion coefficient of electrogenerated TBPA radical cation (1.64 ± 0.02 × 10^-5 cm^-2 s^-1) is very close to that of the parent molecule (1.57 ± 0.03 × 10^-5 cm² s^-1).

Original language	English
Pages (from-to)	284-287
Number of pages	4
Journal	Electroanalysis
Volume	9
Issue number	4
DOIs	https://doi.org/10.1002/elan.1140090404
Publication status	Published - Mar 1997

Keywords

Diffusion coefficient
Spectroelectrochemistry
Tris(4-bromophenyl)amine

ASJC Scopus subject areas

Analytical Chemistry
Electrochemistry

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10.1002/elan.1140090404

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title = "Applications of the Channel Flow Cell for UV-Visible Spectroelectrochemical Studies. Part 2: Transient Signals",

abstract = "The use of the channel flow cell for ultraviolet-visible (UV-vis) spectroelectrochemical experiments has been developed to determine the diffusion coefficients of electrogenerated species by means of monitoring the transient absorbance response resulting from a potential step at a working electrode immediately upstream of the incident spectrophotometric beam. The technique is applied to measure the diffusion coefficient of tris(4-bromophenyl)amine (TBPA) radical cation in acetonitrile at 25°C. It is shown that the diffusion coefficient of electrogenerated TBPA radical cation (1.64 ± 0.02 × 10-5 cm-2 s-1) is very close to that of the parent molecule (1.57 ± 0.03 × 10-5 cm2 s-1).",

keywords = "Diffusion coefficient, Spectroelectrochemistry, Tris(4-bromophenyl)amine",

author = "Wang, \{Rui Lin\} and Tam, \{Kin Yip\} and Frank Marken and Compton, \{Richard G.\}",

year = "1997",

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doi = "10.1002/elan.1140090404",

language = "English",

volume = "9",

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journal = "Electroanalysis",

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T1 - Applications of the Channel Flow Cell for UV-Visible Spectroelectrochemical Studies. Part 2

T2 - Transient Signals

AU - Wang, Rui Lin

AU - Tam, Kin Yip

AU - Marken, Frank

AU - Compton, Richard G.

PY - 1997/3

Y1 - 1997/3

N2 - The use of the channel flow cell for ultraviolet-visible (UV-vis) spectroelectrochemical experiments has been developed to determine the diffusion coefficients of electrogenerated species by means of monitoring the transient absorbance response resulting from a potential step at a working electrode immediately upstream of the incident spectrophotometric beam. The technique is applied to measure the diffusion coefficient of tris(4-bromophenyl)amine (TBPA) radical cation in acetonitrile at 25°C. It is shown that the diffusion coefficient of electrogenerated TBPA radical cation (1.64 ± 0.02 × 10-5 cm-2 s-1) is very close to that of the parent molecule (1.57 ± 0.03 × 10-5 cm2 s-1).

AB - The use of the channel flow cell for ultraviolet-visible (UV-vis) spectroelectrochemical experiments has been developed to determine the diffusion coefficients of electrogenerated species by means of monitoring the transient absorbance response resulting from a potential step at a working electrode immediately upstream of the incident spectrophotometric beam. The technique is applied to measure the diffusion coefficient of tris(4-bromophenyl)amine (TBPA) radical cation in acetonitrile at 25°C. It is shown that the diffusion coefficient of electrogenerated TBPA radical cation (1.64 ± 0.02 × 10-5 cm-2 s-1) is very close to that of the parent molecule (1.57 ± 0.03 × 10-5 cm2 s-1).

KW - Diffusion coefficient

KW - Spectroelectrochemistry

KW - Tris(4-bromophenyl)amine

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U2 - 10.1002/elan.1140090404

DO - 10.1002/elan.1140090404

M3 - Article

AN - SCOPUS:0001443695

SN - 1040-0397

VL - 9

SP - 284

EP - 287

JO - Electroanalysis

JF - Electroanalysis

IS - 4

ER -

Applications of the Channel Flow Cell for UV-Visible Spectroelectrochemical Studies. Part 2: Transient Signals

Abstract

Keywords

ASJC Scopus subject areas

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