Oxidation of hydrazine on poly-3,4-ethylenedioxythiophene polymer films with inclusions of palladium nanoparticles

Babkova, T. A.; Kondratiev, V. V.; Shevaldysheva, D. I.

doi:10.1134/s1023193513030038

Cited by 4 publications

(5 citation statements)

References 12 publications

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“…Comparison of voltammograms clearly suggests that the anodic currents correspond to the catalytic oxidation of hydrazine on Pd NPs in the modifying layer. This is in agreement with our previous data [23,24], obtained for PEDOT/Pd composites. A good stability of voltammograms was observed within the restricted region of potential cycling from −0.5 V to +0.2 V, where we did not observe any significant loss of palladium.…”

Section: Oxidation Of Hydrazinesupporting

confidence: 94%

“…In our previous papers, we have investigated the synthesis of PEDOT/Pd composite by spontaneous electrodeposition of Pd into PEDOT films from PdCl 2 /0.1 M H 2 SO 4 solution [23,24]. In general, we can suggest that the similar reaction may proceed in the case of PEDOT:PSS water dispersion at raised temperature.…”

Section: Formation Of Pedot/pss/pd-modified Electrodesmentioning

confidence: 94%

“…The most common method involves the oxidative electropolymerization of monomers on electrode substrates followed by consecutive electrodeposition or chemical deposition of metal nanoparticles [4][5][6][7][8]. Our previous studies [23,24] of poly-3,4-ethylenedioxythiophene (PEDOT)/Pd composite films were directed at the composites obtained by chemical deposition of dispersed palladium nanoparticles into PEDOT, and they showed good catalytic properties of PEDOT/Pd composites in respect to hydrazine oxidation.…”

Section: Introductionmentioning

confidence: 99%

“…In particular, Pd nanoparticles dispersed in conducting polymers and some other conducting matrices were recognized as efficient electrode materials for voltammetric determination of hydrazine [11][12][13][14][15][16][17][18][19][20][21][22][23][24]. A number of methods for preparation of conducting polymer composites with embedded metal nanoparticles were proposed.…”

Section: Introductionmentioning

confidence: 99%

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Multi-layer PEDOT:PSS/Pd composite electrodes for hydrazine oxidation

Tolstopyatova

Kondratiev

Eliseeva

2015

J Solid State Electrochem

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In this paper, a simple and stable composite electrode PEDOT:PSS/Pd based on the intrinsically conducting polymer poly(3,4-ethylenedioxythiophene):poly(styrene sulfonate) (PEDOT:PSS) was fabricated by drop-casting. The preliminary formation of water dispersion of PEDOT:PSS with Pd nanoparticles was followed by multistep drop cast deposition for the formation of thin metal-polymer composite layers on glassy carbon electrode. The morphology of pristine and composite films as well as the size and distribution of Pd particles were characterized by scanning electron microscopy. The electrochemical properties of composite metal-polymer layers were examined by cyclic voltammetry and chronoamperometry in solution of 0.2 M phosphate buffer solutions (PBS) in the presence and absence of hydrazine. It was demonstrated that electrocatalytical oxidation of hydrazine takes place only on electrochemically accessible palladium particles, located on surface or near-surface layers of composite film. The proposed multi-layer electrodes exhibited a wide linear range of response towards hydrazine detection (from 0.4 to 100 μM) and low detection limit of 0.12 μM (S/N=3).

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Section: Oxidation Of Hydrazinesupporting

confidence: 94%

Section: Formation Of Pedot/pss/pd-modified Electrodesmentioning

confidence: 94%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Multi-layer PEDOT:PSS/Pd composite electrodes for hydrazine oxidation

Tolstopyatova

Kondratiev

Eliseeva

2015

J Solid State Electrochem

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“…Concerted research work has been carried out to search for active electrocatalysts for hydrazine oxidation mainly with the aim of developing high‐performance hydrazine fuel cells . Pt‐based alloys have been considered the most active electrocatalyst for this reaction.…”

Section: Introductionmentioning

confidence: 99%

Preparation of nanostructured Co–Mo alloy electrodes and investigation of their electrocatalytic activity for hydrazine oxidation in alkaline medium

Abdolmaleki¹,

Bodaghi

Hosseini

et al. 2018

J Chinese Chemical Soc

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Funding informationOffice of the Vice-Chancellor in charge of research of Sayyed Jamaleddin Asadabadi University Cobalt and cobalt-molybdenum alloy electrodes are prepared by galvanic deposition on copper substrates. In this paper, we report a study on the influence of alloying cobalt with molybdenum for the oxidation of hydrazine in 1 M NaOH aqueous solutions. The electrocatalytic properties of the electrodes are studied by cyclic voltammetry (CV), chronoamperometry (CA), and electrochemical impedance spectroscopy (EIS). Scanning electron microscopy (SEM), X-ray diffraction (XRD), energy-dispersive X-ray spectroscopy (EDS,) and inductively coupled plasma (ICP) analysis demonstrate that the structural features and compositions of the as-prepared Co-Mo coatings vary with the deposition conditions. Electrochemical characterization indicates that the electrochemical properties and the electrocatalytic activity of the investigated alloys were strongly dependent on the microstructural features obtained under different deposition conditions. The overall experimental data indicate that alloying cobalt with molybdenum metal leads to an increase of the electrocatalytic activity in hydrazine electroxidation compared to when using the pure cobalt electrode. High catalytic efficiencies were achieved on Co/25 at.% Mo and Co/33 at.% Mo electrodes, the latter being the best electrocatalyst for hydrazine electroxidation. K E Y W O R D Scyclic voltammetry, electrocatalytic activity, electrochemical impedance spectroscopy, electrodeposition, hydrazine electroxidation, nanostructured Co-Mo

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