Influence des ions chlorure sur la reduction electrochimique du chrome(VI)

Bennouna, A.; Durand, Bernard; Vittori, O.

doi:10.1016/0013-4686(86)85014-9

Cited by 9 publications

(3 citation statements)

References 6 publications

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“…These electrodes are used after a preconcentration step and the electrochemical analysis is performed by cyclic voltammetry. Less work has been devoted to aqueous conducting binders except those from several French and Spanish laboratories [3][4][5][6][7][8][9][10][11][12][13][14][15]. In the latter case the solid powder P. Navarro · C. Jambon · O. Vittori ( ) Laboratoire d'Electrochimie Analytique, LICAS Universite´Lyon I, CPE Lyon, 43 Bd du 11 novembre 1918, F-69622 Villeurbanne Cedex, France under study is mixed with an ultra-pure graphite powder and an aqueous electrolyte in order to obtain a paste.…”

Section: Introductionmentioning

confidence: 99%

“…Because of its efficiency the electrode was further widely used to investigate either organic or inorganic compounds [3][4][5][6][7][8][9][10][11][12][13][14][15][16][17][18][19]. A recent review by Kalcher [20] with 173 references has been devoted to all aspects of the response of the carbon paste electrode when modified with a large variety of reagents.…”

Section: Introductionmentioning

confidence: 99%

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Electrochemical response of a carbon paste electrode containing an adsorbed species on incorporated alumina

Navarro

Jambon

Vittori

1996

Analytical and Bioanalytical Chemistry

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The electrochemical response of carbon paste electrode was investigated containing an inorganic and a non-electroactive compound on which an electro- active organic molecule was adsorbed. Alizarin S was chosen as the test molecule adsorbed on 150 m(2)/g of alumina, because this molecule is either easily reduced or oxidized on carbon. The electrode response was found to be linear for low amounts of alumina containing a known amount of Alizarin S. The electrical yield was never higher than 50%, but was reproducible. An increasing alumina amount in the paste increased the response, but lowered the electrical yield.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Electrochemical response of a carbon paste electrode containing an adsorbed species on incorporated alumina

Navarro

Jambon

Vittori

1996

Analytical and Bioanalytical Chemistry

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“…In this case the electrode behaves like a thin layer cell, the charge-transfer is released directly within the electroactive solid and the carbon particles bound with the electrolytic solution [4]. The carbon paste electrode has been used in order to understand the transformation mechanisms of several substances and to discriminate between the different allotropic forms of compounds such as metal oxides [5,6].…”

Section: Introductionmentioning

confidence: 99%

PREPARATION OF NICKEL - COBALT SPINEL OXIDES NixCO3-xO4.COMPARISON OF TWO PHYSICAL PROPERTIES STEMMING FROM FOUR DIFFERENT PREPARATION METHODS AND USING CARBON PASTE ELECTRODE

Guene¹,

Diagne²,

Fall³

et al. 2007

Bull. Chem. Soc. Eth.

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A comparative study of two electro-physical properties (porosity and electrical conductivity) of binary nickel cobalt oxides electrodes with spinels mixed oxides Ni x Co 3-x O 4 as active matter, was carried out. Four different routes were used to prepare spinel-type Ni x Co 3-x O 4 (0 ≤ x ≤ 2.5) compounds in order to link these properties with the preparation method. The substitution of Ni for Co increases the conductivity and the porosity of the electrode till a certain ratio of nickel. X-ray diffraction patterns showed that the oxides crystallize in a cubic spinel phase. Electrical conductivity as well as porosity depends on the preparation route.

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