Electrochemical behaviour of bismuth(V) and bismuth(III) compounds at a carbon paste electrode. Application to the study of the superconductor BiSrCaCuO

Espinosa, Ana; Jose, M.; Tascón, M.L.; Vászquez, M.D.; Batanero, P. Sánchez

doi:10.1016/0013-4686(91)85007-t

Cited by 24 publications

(12 citation statements)

References 17 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…1, curve c). This signal is shifted to more negative potentials compared with data from Espinosa et al [10], because of the slightly acidic solution. The reoxidation peak of Cd(II), in the presence and absence of Pb(II) in the solution, is found at the same potential with a modified and an unmodified CPE.…”

Section: Resultsmentioning

confidence: 73%

See 1 more Smart Citation

Carbon paste electrodes modified with Bi 2 O 3 as sensors for the determination of Cd and Pb

Pauliukaitė

Metelka

Švancara

et al. 2002

Analytical and Bioanalytical Chemistry

148

View full text Add to dashboard Cite

Carbon paste electrodes bulk-modified with Bi(2)O(3)were used for the determination of Cd(II) and Pb(II). The best composition was 1% (wt%) Bi(2)O(3) in the paste. The measurements were made by differential pulse voltammetry in the potential range from -1.2 V to -0.3 V. The peak potential of the reoxidation of Cd is -0.85 V, and of Pb -0.60 V vs. SCE. The lowest concentration that could be determined was 5 microg L(-1) of both metals (preconcentration time 240 s), the relative standard deviation was 3.5%-5.0% (four determinations). The correlation coefficient ( r(2)) of the calibration curves was 0.9966 (for Cd) and 0.9971 (for Pb). The Bi(2)O(3)-modified electrode could be used for the analysis of drinking water, mineral water and urine.

show abstract

Section: Resultsmentioning

confidence: 73%

“…Espinosa et al studied the electrochemical properties of Bi 2 O 3 mixing it with carbon powder in strongly alkaline solution [10]. They observed that a chemical reaction occurs between bismuth oxide and OH -ions (Eq.…”

Section: Introductionmentioning

confidence: 98%

Carbon paste electrodes modified with Bi 2 O 3 as sensors for the determination of Cd and Pb

Pauliukaitė

Metelka

Švancara

et al. 2002

Analytical and Bioanalytical Chemistry

148

View full text Add to dashboard Cite

show abstract

“…11a). Thus Bi met r Bi ϩ ϩ e [18] 3Bi ϩ r Bi 3ϩ ϩ 2Bi met [19] 3 OH Ϫ ϩ Bi 3ϩ r Bi(OH) 3 [20] Bi(OH) 3 ϩ OH Ϫ r BiO 2 Ϫ ϩ 2H 2 O (Dissolution) [21] As the solubility of Bi(OH) 3 is limited, the excess does not dissolve within the micropore solution and accordingly forms a layer between the Bi met sites and the micropores, which slows the arrival of OH Ϫ ions. After the exhaustion of OH Ϫ , the pH is locally decreased.…”

Section: Or Biooh the Adsorbed Biomentioning

confidence: 98%

Electrochemical Study of Bi[sub 2]O[sub 3] and Bi[sub 2]O[sub 2]CO[sub 3] by Means of a Cavity Microelectrode. I. Observed Phenomena and Direct Analysis of Results

Vivier

Cachet‐Vivier

Mezaille

et al. 2000

J. Electrochem. Soc.

View full text Add to dashboard Cite

Bi element is included within various complex oxides, in high transition-temperature superconductors BiSrCaCuO, or in manganese dioxide as in rechargeable battery material, for example. [1][2][3][4][5][6][7][8][9][10][11][12] It more or less modifies the properties of the material. For instance, the various species of Mn(IV) oxides are rechargeable when the deep discharge is lower than 0.5 faradays (Ᏺ) per Mn atom, [13][14][15][16][17][18] but when Bi atoms are included, they become electrochemically reversible for deep discharge higher than 1.5 Ᏺ/Mn. [4][5][6][7][8][9][10][11][12] It is interesting to know the interaction between Bi atoms and the metal atom of the matrix host through the eventual modifications of the redox potential. In order to have references for comparison, Bi 2 O 3 and its derivatives have been studied using the usual composite electrodes, also called graphite or carbon paste electrodes. 19,20 These electrode devices do not allow scanning at a rate higher than a few millivolts per second. Therefore, it is not possible to determine the kinetic features of the electrochemical processes. The cavity microelectrode (CME) has been recently invented for studying a very small amount of powder material (10 Ϫ7 to 10 Ϫ8 g). 21,22 It allows for reaching scan rates up to a few tens of volts per seconds. 23,24 This paper is devoted to both the description and direct analysis of results obtained for Bi 2 O 3 and Bi 2 O 2 CO 3 by means of the CME. ExperimentalMaterial and physicochemical characterization.-Bi 2 O 3 is obtained by precipitation of 1 M Bi(NO 3 ) 3 solution in 1 M KOH at room temperature. The solid is filtered, washed with distilled water, and dried at 80ЊC. It is stored at room temperature in a closed bottle. After a storage of several years, the product is fully carbonated giving Bi 2 O 2 CO 3 as determined by elemental analysis and by X-ray diffraction (XRD). A specific area is measured by means of a device from Coulter, type SA3100.CME and optical control devices.-The CME (Fig. 1a) is made of a glass tube (diam glass : 5 to 6 mm, total length, ᐉ tot : 80 to 150 mm) containing a Pt wire (diam pt : 25 to 50 m, length 3 cm) which ends near the bottom of the glass tube thus providing a cylindrical cavity (Fig. 1b). This cavity is obtained by controlled dissolution of the platinum wire in a highly concentrated HCl ϩ HNO 3 solution. The connection between the Pt wire and the copper wire col-lector is achieved by embedding the end of the two wires in graphite powder. The diameter pt and the deepness h c of the microcavity is measured by a microscope (Olympus BX30

show abstract

“…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%

“…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%

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

Navarro

Jambon

Vittori

1996

Analytical and Bioanalytical Chemistry

View full text Add to dashboard Cite

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.

show abstract

Electrochemical behaviour of bismuth(V) and bismuth(III) compounds at a carbon paste electrode. Application to the study of the superconductor BiSrCaCuO

Cited by 24 publications

References 17 publications

Carbon paste electrodes modified with Bi 2 O 3 as sensors for the determination of Cd and Pb

Carbon paste electrodes modified with Bi 2 O 3 as sensors for the determination of Cd and Pb

Electrochemical Study of Bi[sub 2]O[sub 3] and Bi[sub 2]O[sub 2]CO[sub 3] by Means of a Cavity Microelectrode. I. Observed Phenomena and Direct Analysis of Results

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

Contact Info

Product

Resources

About