Influence of supporting electrolyte on the electrochemical oxidation of formic acid on boron-doped diamond electrodes

Stéphane Fierro, Yuki Honda, Yasuaki Einaga

Research output: Contribution to journalArticle

4 Citations (Scopus)

Abstract

The influence of support electrolyte on the electrochemical degradation of formic acid was studied on boron-doped diamond (BDD) electrodes. Experimental data are compared with a theoretical model, which is based on organic degradation via hydroxyl radicals under current or mass transport controlled regimes depending on the difference between the applied and limiting current. The kinetics of the different reactions involved in the process is also briefly studied. It is shown that when sulfuric acid is used as support electrolyte, the reactions involving electro-generated peroxodisulfate anions during the degradation of formic acid are highly dependent on temperature. For this reason, the influence on the overall process of the chemical reaction between these anions and formic acid tends to increase with increasing temperatures and when the electrolysis becomes controlled by mass transport. However, it is proven that degradation of formic acid in the bulk occurs under current controlled regime as well. Furthermore, it is shown that the use of sulfuric acid as support electrolyte enhances the degradation of formic acid at high temperatures and when the process is controlled by mass transfer compared to other inert support electrolytes.

Original languageEnglish
Pages (from-to)749-754
Number of pages6
JournalBulletin of the Chemical Society of Japan
Volume86
Issue number6
DOIs
Publication statusPublished - 2013 Jun

Fingerprint

formic acid
Diamond
Boron
Electrochemical oxidation
Electrolytes
Degradation
Electrodes
Mass transfer
Anions
Electrolysis
Hydroxyl Radical
Temperature
Chemical reactions

ASJC Scopus subject areas

  • Chemistry(all)

Cite this

Influence of supporting electrolyte on the electrochemical oxidation of formic acid on boron-doped diamond electrodes. / Fierro, Stéphane; Honda, Yuki; Einaga, Yasuaki.

In: Bulletin of the Chemical Society of Japan, Vol. 86, No. 6, 06.2013, p. 749-754.

Research output: Contribution to journalArticle

@article{a4a9986bd1f147a58d212a53b21460cc,
title = "Influence of supporting electrolyte on the electrochemical oxidation of formic acid on boron-doped diamond electrodes",
abstract = "The influence of support electrolyte on the electrochemical degradation of formic acid was studied on boron-doped diamond (BDD) electrodes. Experimental data are compared with a theoretical model, which is based on organic degradation via hydroxyl radicals under current or mass transport controlled regimes depending on the difference between the applied and limiting current. The kinetics of the different reactions involved in the process is also briefly studied. It is shown that when sulfuric acid is used as support electrolyte, the reactions involving electro-generated peroxodisulfate anions during the degradation of formic acid are highly dependent on temperature. For this reason, the influence on the overall process of the chemical reaction between these anions and formic acid tends to increase with increasing temperatures and when the electrolysis becomes controlled by mass transport. However, it is proven that degradation of formic acid in the bulk occurs under current controlled regime as well. Furthermore, it is shown that the use of sulfuric acid as support electrolyte enhances the degradation of formic acid at high temperatures and when the process is controlled by mass transfer compared to other inert support electrolytes.",
author = "St{\'e}phane Fierro and Yuki Honda and Yasuaki Einaga",
year = "2013",
month = "6",
doi = "10.1246/bcsj.20130008",
language = "English",
volume = "86",
pages = "749--754",
journal = "Bulletin of the Chemical Society of Japan",
issn = "0009-2673",
publisher = "Chemical Society of Japan",
number = "6",

}

TY - JOUR

T1 - Influence of supporting electrolyte on the electrochemical oxidation of formic acid on boron-doped diamond electrodes

AU - Fierro, Stéphane

AU - Honda, Yuki

AU - Einaga, Yasuaki

PY - 2013/6

Y1 - 2013/6

N2 - The influence of support electrolyte on the electrochemical degradation of formic acid was studied on boron-doped diamond (BDD) electrodes. Experimental data are compared with a theoretical model, which is based on organic degradation via hydroxyl radicals under current or mass transport controlled regimes depending on the difference between the applied and limiting current. The kinetics of the different reactions involved in the process is also briefly studied. It is shown that when sulfuric acid is used as support electrolyte, the reactions involving electro-generated peroxodisulfate anions during the degradation of formic acid are highly dependent on temperature. For this reason, the influence on the overall process of the chemical reaction between these anions and formic acid tends to increase with increasing temperatures and when the electrolysis becomes controlled by mass transport. However, it is proven that degradation of formic acid in the bulk occurs under current controlled regime as well. Furthermore, it is shown that the use of sulfuric acid as support electrolyte enhances the degradation of formic acid at high temperatures and when the process is controlled by mass transfer compared to other inert support electrolytes.

AB - The influence of support electrolyte on the electrochemical degradation of formic acid was studied on boron-doped diamond (BDD) electrodes. Experimental data are compared with a theoretical model, which is based on organic degradation via hydroxyl radicals under current or mass transport controlled regimes depending on the difference between the applied and limiting current. The kinetics of the different reactions involved in the process is also briefly studied. It is shown that when sulfuric acid is used as support electrolyte, the reactions involving electro-generated peroxodisulfate anions during the degradation of formic acid are highly dependent on temperature. For this reason, the influence on the overall process of the chemical reaction between these anions and formic acid tends to increase with increasing temperatures and when the electrolysis becomes controlled by mass transport. However, it is proven that degradation of formic acid in the bulk occurs under current controlled regime as well. Furthermore, it is shown that the use of sulfuric acid as support electrolyte enhances the degradation of formic acid at high temperatures and when the process is controlled by mass transfer compared to other inert support electrolytes.

UR - http://www.scopus.com/inward/record.url?scp=84879191261&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=84879191261&partnerID=8YFLogxK

U2 - 10.1246/bcsj.20130008

DO - 10.1246/bcsj.20130008

M3 - Article

AN - SCOPUS:84879191261

VL - 86

SP - 749

EP - 754

JO - Bulletin of the Chemical Society of Japan

JF - Bulletin of the Chemical Society of Japan

SN - 0009-2673

IS - 6

ER -