THE ELECTROCHEMICAL PREPARATION OF POLYPHENOL WITH CONDUCTIBILITY*

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THE ELECTROCHEMICAL PREPARATION OF POLYPHENOL WITH CONDUCTIBILITY*

Papers | Updated：2021-06-21

- THE ELECTROCHEMICAL PREPARATION OF POLYPHENOL WITH CONDUCTIBILITY*
- Vol. 20, Issue 4, Pages: 309-316(2002)
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- Published：20 August 2002
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THE ELECTROCHEMICAL PREPARATION OF POLYPHENOL WITH CONDUCTIBILITY*[J]. 2002, 20(4): 309-316.
DOI：

THE ELECTROCHEMICAL PREPARATION OF POLYPHENOL WITH CONDUCTIBILITY*[J]. 2002, 20(4): 309-316. DOI：

摘要

Polyphenol film deposited on platinum foil can continuously grow with time during the electrolysis of a phenolsolution consisting of 0. 1 mol L-1 phenol

3 mol L-1 NaOH and 0.5 mol L-1 Na2SO4

as has been proved by the methods ofsweep potential

constant potential and constant current

and visible spectra during the electrolysis of phenol. A polyphenolfilm with thickness of 0.11 mm was obtained by the electrolysis of phenol at a constant potential of 0.70 V (versus Ag/AgCl with saturated KCl solution).Polyphenol film is inactive and stable in 2 mol L-1H2SO4 solution

neutral solution and 3 mol L-1 NaOH solution and in the potential range between -0.95 and 1.35 V.The usable potential range is dependent on the pH value.Polyphenol has an ESR signal with a g factor of 2.0049.The conductivity of polyphenol is 1.2×10-4 S cm-1.In the solution of polyphenol dissolved in DMSO

the mobility of polyphenol anions is 8×10-9m2s-1V-1 at 20℃.

Abstract

Polyphenol film deposited on platinum foil can continuously grow with time during the electrolysis of a phenolsolution consisting of 0. 1 mol L-1 phenol

3 mol L-1 NaOH and 0.5 mol L-1 Na2SO4

as has been proved by the methods ofsweep potential

constant potential and constant current

the mobility of polyphenol anions is 8×10-9m2s-1V-1 at 20℃.

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