PEDOT-supported Pd nanoparticles as a catalyst for hydrazine oxidation

Kondratiev, V. V.; Babkova, T. A.; Tolstopyatova, E. G.

doi:10.1007/s10008-013-2019-1

Cited by 35 publications

(15 citation statements)

References 31 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: 93%

“…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: 96%

“…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: 93%

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

confidence: 96%

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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“…Pd electroless deposition (at the expense of CP oxidation) was studied in the case of polyaniline [31][32][33] and PEDOT [34][35][36][37][38], and the obtained electrocatalysts were tested for oxidation of hydrazine [32,38] and reduction of hydrogen peroxide [37] and nitrate ions [34]. The investigations on the electroless deposition of Pd on PEDOT [34][35][36][37][38] show that this approach is a suitable way of obtaining well-dispersed metallic phase. Studies using PEDOT-supported Pd NPs carried out in neutral solutions [38] give evidence for the possibility to use these materials for amperometric determination of hydrazine.…”

Section: Introductionmentioning

confidence: 99%

Pd-modified PEDOT layers obtained through electroless metal deposition—electrooxidation of glycerol

Ilieva

Nakova

Tsakova

2016

J Solid State Electrochem

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Pd-poly(3,4-ethylenedioxythiophene) (PEDOT)-based electrocatalytic materials are obtained by coupling Pd ion reduction with oxidation of pre-reduced PEDOT coatings. Electroless metal deposition is carried out in single or triple electroless deposition steps resulting in Pd NPs with mean size ranging between 12 and 22 nm, respectively. The proposed method of dispersing the Pd catalytic phase provides the opportunity to obtain high electrocatalytic currents with Pd loadings as low as 10 μg cm −2 . The Pd-PEDOT catalyst obtained by triple-step metal deposition shows stable voltammetric behavior with respect to glycerol oxidation in alkaline solution. The established mass activity is between the highest values achieved at Pd-electrocatalysts without involving additional electrocatalytic materials or special supports.

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Selective Detection of Hydrazine in the Presence of Excess Electrochemically Active Pharmaceutical Ingredients Using Boron Doped Diamond Metal Nanoparticle Functionalised Electrodes

et al. 2013

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Detection of the genotoxic impurity hydrazine (HZ) in the presence of active pharmaceutical ingredients (APIs) represents a significant challenge to the pharmaceutical industry. Here we show how the use of electrochemical strategies in conjunction with metal nanoparticle (NP) functionalised polycrystalline boron‐doped diamond (BDD) electrodes enables detection of HZ in the presence of two different electrochemically active APIs. By simply changing the chemical identity of the metal NP, which shifts the detection potential for HZ, it is possible to selectively screen out the API signature from the HZ current – voltage response. HZ detection limits of 11.1 µM (Au NP BDD) and 3.3 µM (Pt NP BDD) in the presence of excess acetaminophen and promazine respectively, were determined using differential pulse voltammetry in quiescent solution.

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PEDOT-supported Pd nanoparticles as a catalyst for hydrazine oxidation

Cited by 35 publications

References 31 publications

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

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

Pd-modified PEDOT layers obtained through electroless metal deposition—electrooxidation of glycerol

Selective Detection of Hydrazine in the Presence of Excess Electrochemically Active Pharmaceutical Ingredients Using Boron Doped Diamond Metal Nanoparticle Functionalised Electrodes

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