Electrochemical behaviour of persulphate on carbon paste electrodes modified with Prussian blue and analogous compounds

Weissenbacher, M.; Kalcher, Kurt; Greschonig, H.; Ng, Wf F.; Chan, Wing Hong; Voulgaropoulos, Anastasios

doi:10.1007/bf00325120

Cited by 28 publications

(21 citation statements)

References 19 publications

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“…Table 4 lists the most important analytical procedures that exploit catalytic effects for the determination of inorganic species. Hydrogen peroxide, an important product of enzymatic processes, can be catalytically oxidized by some platinum metals dispersed in carbon paste, as investigated by Wang; these electrodes are also useful for the determination of hydrazine [143] [153]; by double modification of carbon paste with the catalyst and an anion exchanger, it is possible to preconcentrate persulfate selectively from a mixture with perborate and hydrogen peroxide [153]. Ruthenium and iron complexes catalyze the oxidation of nitrite [150] and sulfite, respectively [151].…”

Section: Electrocatalytic Determination Of Inorganic Andytes Using Mcpesmentioning

confidence: 99%

Sensors based on carbon paste in electrochemical analysis: A review with particular emphasis on the period 1990–1993

et al. 1995

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A review is presented dealing with the use of carbon paste as an electrode material for electrochemical sensors (3 11 references). It covers mainly publications which appeared during the period 1990-1993; numerous applications demonstrate the widespread applicability of carbon paste in the field of electrochemical analysis, such as voltammetry, amperometry, and potentiometry, but also as an electrode for electrochemical detectors in flow systems.

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Section: Electrocatalytic Determination Of Inorganic Andytes Using Mcpesmentioning

confidence: 99%

Sensors based on carbon paste in electrochemical analysis: A review with particular emphasis on the period 1990–1993

et al. 1995

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“…Furthermore referring to the results obtained, the method is suited to the rapid and precise determination of S 2 O 8 2À and can be successfully applied for the analysis of commercial decolorizing powder. The major advantages of the PB/Pd-Al electrode compared with those of previous voltammetric [33,34] and amperometric [32] works, seems to be the simplicity and rapidity of its electroless preparation (in few minutes) and high stability and durability of the PB film on the Pd-Al surface. Furthermore the dynamic range and detection limit of the present work are improved.…”

Section: Applicationsmentioning

confidence: 98%

“…The electrocatalytic reduction of S 2 O 8 2À on the PB modified GC electrode was exploited for its flow injection amperometric measurement [32]. Catalytic reduction of S 2 O 8 2À occurs also at a Prussian Blue (PB)-modified Pt [33] or carbon paste [34]. It is interesting from both fundamental and applied point of view to investigate the mechanism and kinetics of S 2 O 8 reduction on PB modified electrodes of improved stability at the operational range.…”

Section: Introductionmentioning

confidence: 99%

Electrocatalytic Reduction of Peroxy Disulfate on the Palladized Aluminum Electrode Modified by Prussian Blue: Application to the Analysis of Decolorizing Powders

Pournaghi-Azar

Ahour

2010

Electroanalysis

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The mechanism of catalytic reduction of peroxydisulfate on the palladized aluminum electrode modified by Prussian blue (PB/Pd-Al) was studied. The charge transfer-rate limiting step as well as overall reduction reaction of S 2 O 8 2À is found to be a one-electron and two-electron abstraction respectively. The modified electrode is exploited for the hydrodynamic amperometry of peroxydisulfate. It is found that the calibration graph is linear in the S 2 O 8 2À concentration range 5 10 À6 -1.5 10 À3 mol L À1. The detection limit of the method was 2.4 10The method was successfully used for the determination of S 2 O 8 2À in decolorizing powders

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“…Electrocatalytic currents were stable and reproducible in the pH range 3 -7, with a maximum value of current efficiency at pH 4. The pronounced diminution in current efficiency at pH < 3 can be interpreted as increased protonation of peroxodisulfate ions [59]. Considering that the high catalytic activity of the modified electrode was observed at pH 4, this pH value was chosen as an optimum pH for peroxodisulfate determination.…”

Section: Electrocatalytic Reduction Of Peroxodisulfate At Pbpcnf J Ccementioning

confidence: 99%

Preparation, Electrochemistry, and Electrocatalytic Activity of Lead Pentacyanonitrosylferrate Film Immobilized on Carbon Ceramic Electrode

Razmi

Heidari

2008

Electroanalysis

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Lead pentacyanonitrosylferrate (PbPCNF), a new Prussian blue analog, was immobilized on the surface of a carbon ceramic electrode (CCE) prepared by sol-gel method. The immobilization process consists of adding a certain amount of metallic lead to the electrode matrix before gelation, and chemical derivatization of Pb on the electrode surface to a PbPCNF solid film by immersing the electrode in a solution of sodium pentacyanonitrosylferrate (PCNF). The composition of the synthesized PbPCNF was characterized by FTIR, scanning electron microscopy (SEM), and energy-dispersive X-ray (EDX) techniques. The resulting modified electrode showed electroactivity at two redox centers. The electrochemical behavior of the PbPCNF modified carbon ceramic electrode (PbPCNF j CCE) was studied by cyclic voltammetry. Under optimized conditions the peak-to-peak separation is only 39 mV, indicative of a surface reaction. Ion effects of the supporting electrolyte suggest that cations have a considerable effect on the electrochemical behavior of the modified electrode. The transfer coefficient (a) and the charge transfer rate constant at the modifying film j electrode interface (k s ) were calculated. The electrocatalytic activity of the modified electrode toward the electro-reduction of peroxodisulfate was studied in details.

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Electrochemical behaviour of persulphate on carbon paste electrodes modified with Prussian blue and analogous compounds

Cited by 28 publications

References 19 publications

Sensors based on carbon paste in electrochemical analysis: A review with particular emphasis on the period 1990–1993

Sensors based on carbon paste in electrochemical analysis: A review with particular emphasis on the period 1990–1993

Electrocatalytic Reduction of Peroxy Disulfate on the Palladized Aluminum Electrode Modified by Prussian Blue: Application to the Analysis of Decolorizing Powders

Preparation, Electrochemistry, and Electrocatalytic Activity of Lead Pentacyanonitrosylferrate Film Immobilized on Carbon Ceramic Electrode

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