Electro-oxidation of d-sorbitol on platinum in perchloric medium: A voltammetric study

I. Fonseca; M. I.S. Lopes; J. L. Santos; L. Proença

doi:10.1016/0013-4686(95)00269-K

Electro-oxidation of d-sorbitol on platinum in perchloric medium: A voltammetric study

I. Fonseca, M. I.S. Lopes, J. L. Santos, L. Proença

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

16 Citations (Scopus)

Abstract

The electrocatalytic oxidation of d-sorbitol on a polycrystalline platinum electrode, in perchloric aqueous medium, was studied by cyclic voltammetry under varying sweep rate, potential limits, stirring, temperature, pH and concentration of d-sorbitol. A value of about 50 kJ mol^-1 was obtained for the apparent activation enthalpy of the oxidation reaction at 0.1 V vs. sme. The experimental rate equation is i = kC_d-sorb ^0.4C_H⁺ ^-0.3.exp[ 0.4 FE RT], valid for [d-sorbitol] < 0.1 mol dm^-3 and pH < 1.

Original language	English
Pages (from-to)	2701-2706
Number of pages	6
Journal	Electrochimica Acta
Volume	40
Issue number	17
DOIs	https://doi.org/10.1016/0013-4686(95)00269-K
Publication status	Published - Dec 1995
Externally published	Yes

Keywords

cyclic voltammetry
d-sorbitol
electro-oxidation
electrocatalysis
platinum

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10.1016/0013-4686(95)00269-K

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@article{c4d2dad7d66d4d7ba20c488e5e9d6750,

title = "Electro-oxidation of d-sorbitol on platinum in perchloric medium: A voltammetric study",

abstract = "The electrocatalytic oxidation of d-sorbitol on a polycrystalline platinum electrode, in perchloric aqueous medium, was studied by cyclic voltammetry under varying sweep rate, potential limits, stirring, temperature, pH and concentration of d-sorbitol. A value of about 50 kJ mol-1 was obtained for the apparent activation enthalpy of the oxidation reaction at 0.1 V vs. sme. The experimental rate equation is i = kCd-sorb 0.4CH+ -0.3 .exp[ 0.4 FE RT], valid for [d-sorbitol] < 0.1 mol dm-3 and pH < 1.",

keywords = "cyclic voltammetry, d-sorbitol, electro-oxidation, electrocatalysis, platinum",

author = "I. Fonseca and Lopes, {M. I.S.} and Santos, {J. L.} and L. Proen{\c c}a",

note = "Funding Information: Acknowledgements-Thwiso rk was partially supported by Junta National de Investiga@oC ientificae Tecnolbgica (JNICT), under researchc ontract PMCT/C/MPF/527.90. One of us (L.P.) acknowledgeas fellowship( CIENCIA/BD/ 2645/93fr)o m JNICT.",

year = "1995",

month = dec,

doi = "10.1016/0013-4686(95)00269-K",

language = "English",

volume = "40",

pages = "2701--2706",

journal = "Electrochimica Acta",

issn = "0013-4686",

publisher = "Elsevier Ltd.",

number = "17",

}

TY - JOUR

T1 - Electro-oxidation of d-sorbitol on platinum in perchloric medium

T2 - A voltammetric study

AU - Fonseca, I.

AU - Lopes, M. I.S.

AU - Santos, J. L.

AU - Proença, L.

N1 - Funding Information: Acknowledgements-Thwiso rk was partially supported by Junta National de Investiga@oC ientificae Tecnolbgica (JNICT), under researchc ontract PMCT/C/MPF/527.90. One of us (L.P.) acknowledgeas fellowship( CIENCIA/BD/ 2645/93fr)o m JNICT.

PY - 1995/12

Y1 - 1995/12

N2 - The electrocatalytic oxidation of d-sorbitol on a polycrystalline platinum electrode, in perchloric aqueous medium, was studied by cyclic voltammetry under varying sweep rate, potential limits, stirring, temperature, pH and concentration of d-sorbitol. A value of about 50 kJ mol-1 was obtained for the apparent activation enthalpy of the oxidation reaction at 0.1 V vs. sme. The experimental rate equation is i = kCd-sorb 0.4CH+ -0.3 .exp[ 0.4 FE RT], valid for [d-sorbitol] < 0.1 mol dm-3 and pH < 1.

AB - The electrocatalytic oxidation of d-sorbitol on a polycrystalline platinum electrode, in perchloric aqueous medium, was studied by cyclic voltammetry under varying sweep rate, potential limits, stirring, temperature, pH and concentration of d-sorbitol. A value of about 50 kJ mol-1 was obtained for the apparent activation enthalpy of the oxidation reaction at 0.1 V vs. sme. The experimental rate equation is i = kCd-sorb 0.4CH+ -0.3 .exp[ 0.4 FE RT], valid for [d-sorbitol] < 0.1 mol dm-3 and pH < 1.

KW - cyclic voltammetry

KW - d-sorbitol

KW - electro-oxidation

KW - electrocatalysis

KW - platinum

UR - http://www.scopus.com/inward/record.url?scp=0040334620&partnerID=8YFLogxK

U2 - 10.1016/0013-4686(95)00269-K

DO - 10.1016/0013-4686(95)00269-K

M3 - Article

AN - SCOPUS:0040334620

SN - 0013-4686

VL - 40

SP - 2701

EP - 2706

JO - Electrochimica Acta

JF - Electrochimica Acta

IS - 17

ER -

Electro-oxidation of d-sorbitol on platinum in perchloric medium: A voltammetric study

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Keywords

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