Anodic deposition of composites with a matrix of intrinsically conducting polymers

Beck, F.; Abdelmula, E.; Dahlhaus, M.

doi:10.1016/s0013-4686(00)00422-9

Cited by 8 publications

(4 citation statements)

References 31 publications

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“…It can be seen from Fig.1 that the PGCF has a porous and netty structure, which is similar to that of PPY-carbon black composite film prepared by Beck [11] and PANI-carbon black composite film prepared by Del [12] . However, Nunziante et al [13−14] prepared granular PANI films with the same electrochemical method in a solution containing H 2 SO 4 and aniline.…”

Section: Sem Measurement Of Pgcfsupporting

confidence: 56%

“…In addition, anodic codeposition of conducting polymers and solid micro-powders such as metal oxide and carbon black is an important means for preparing composites. The incorporation of carbon black into the intrinsically conducting polymers (ICP) was researched by Beck [11] . The mechanism of anodic codeposition and performance of the composite were also described in his work.…”

Section: Introductionmentioning

confidence: 99%

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Polyaniline-graphite composite film glucose oxidase electrode

Zhou

Chen

et al. 2006

J Cent. South Univ. Technol.

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A novel polyaniline-graphite composite film glucose oxidase (PGCF GOD) electrode was developed. The PGCF was synthesized by cyclic voltammetry method in 0.5 mol/L H 2 SO 4 solution containing 1 g/L graphite powder and 0.2 mol/L aniline. The PGCF GOD electrode was prepared by doping GOD into the composite film. The morphology of the PGCF and the response property of the PGCF GOD electrode were investigated by scanning electron microscopy and electrochemical measurement, respectively. The results show that the PGCF has a porous and netty structure and the PGCF GOD electrode has excellent response property such as high sensitivity and short response time. Influences of pH value, temperature, glucose concentration and potential on the response current of the electrode were also discussed. The sensor has a maximum steady-state current density of 357.17 µA/cm 2 and an apparent Michaelis-Menten constant of 16.57 mmol/L. The maximum current response of the enzyme electrode occurs under the condition of pH 5.5, 0.8 V and 65 ℃.

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Section: Sem Measurement Of Pgcfsupporting

confidence: 56%

Section: Introductionmentioning

confidence: 99%

Polyaniline-graphite composite film glucose oxidase electrode

Zhou

Chen

et al. 2006

J Cent. South Univ. Technol.

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“…These classes of composites could be obtained by the in situ deposition of the ICP on CB substrate [18,22] , the direct polymerization of ICPs on carbon substrates, by chemical [23,21,24] or electrochemical method [25][26][27][28] . The chemical process yields to large quantities of ICPs [29] .…”

Section: Introductionmentioning

confidence: 99%

Synthesis and characterization of conducting composites of polyaniline and carbon black with high thermal stability

2009

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nanotubes substrates have demonstrated some properties such as the increase of the PANI conducting ability [27,32,33] , the supercapacitive behavior [30,34] as well as better recovering properties by functionalizing the oxidized carbon nanotube with p-phenylenediamineamino before starting the polymerization [35] . Nevertheless, the attainment of a well controlled carbon nanotube substrate, with high purity degree, is still difficult and expensive.In this work, a detailed and simple route is described to prepare composites based on the direct chemical polymerization of PANI onto particles of conductive CB substrate (type Printex ® L6 from Degussa S.A). It is also demonstrated that this procedure presents great advantages such as the best control in the substrate recovering. The composites were characterized by thermal analysis, specific area, elemental analysis and AC conductivity. ExperimentalAniline (Aldrich) was purified by distillation under reduced pressure in the presence of zinc powder. Conductive CB Printex ® L6 (10 -1 S cm -1 in pressed samples) was purchased from Degussa. All reagents were analytical grade and used as received. The water used for the solutions was purified by the Milli-Q system (Millipore Inc.).The PANI was synthesized using aqueous HCl by the direct oxidation of the aniline with the addition of a solution of 0.25 M (NH 4 ) 2 S 2 O 8 using a monomer:oxidant molar ratio of 4:1 at 0 °C. The resulting PANI powder was dried under air atmosphere at 60 °C.The composites were prepared by maintaining CB under mechanical stirring for 1 hour in contact with acidic aqueous solutions of 1.0 M aniline in 1.0 M HCl. After that, the solution of 0.25 M (NH 4 ) 2 S 2 O 8 in 1.0 M HCl was drop wise IntroductionPANI presents very poor mechanical stability in its conducting state, which requires the preparation of copolymers or blends. Moreover, the polymer must be stable at the high temperatures that are necessary for processing [1][2][3][4][5][6][7][8][9][10][11][12][13][14][15][16] . However, films prepared with intrinsically conducting polymers (ICPs) exhibit poor mechanical properties and are also thermally unstable [17,18] , for example, conducting PANI loses its electrical properties at 225 °C, even under nitrogen atmosphere.Generally, thermoplastics or thermosets conductive compounds are obtained by the addition of a conductive loading, such as CB, to the polymeric matrix. Additionally, to obtain suitable materials, high loadings of the additive are necessary. This makes heat processing difficult, because the high surface area additive increases the melt viscosity in the interaction with the polymer matrix [19,20] .Composites obtained by deposition of ICPs over CB particles, showed thermal stability and effective reduction of the surface area and pore volume of the CB [18,21] . These classes of composites could be obtained by the in situ deposition of the ICP on CB substrate [18,22] , the direct polymerization of ICPs on carbon substrates, by chemical [23,21,24] or electrochemical method [25][26][2...

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“…All strategies used for the preparation of polymer films doped with semiconductor nanoparticles involve intimate mixing of NPs with the matrix-forming polymer. − , Compatibilization of polymers and semiconductor NPs is achieved via in situ synthesis of semiconductor NPs in a polymer matrix, by mixing solutions of polymer and nanoparticles and film casting, , and by polymerization of a monomer mixed with nanoparticles. , These methods have been successfully used to produce nanocomposite films without notable aggregation of the NPs. However, casting or spin-coating of such films on fibers, on patterned surfaces, and, in general, on objects with a complicated shape is a challenge, though new technologies are currently emerging (e.g., the use of masks or ink-jet technology).…”

Section: Introductionmentioning

confidence: 99%

Electrodeposition of Polymer−Semiconductor Nanocomposite Films

and

Kumacheva

2004

Chem. Mater.

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Hybrid polymer−semiconductor nanostructured films were obtained by co-electrodeposition of poly(vinyl acetate-co-crotonic acid) and CdS or CdTe nanoparticles (NPs) stabilized with 1-thioglycerol (TGL) or thioglycolic acid (TGA). Composite films were enriched with negatively charged NPs stabilized with TGA. Relative uptake of these NPs increased with electrodeposition time and increase in NP concentration in solution, while the variation in electric field had little effect on NP electrodeposition. No substantial aggregation or NP growth occurred in the electrodeposition process and during film formation. Electrodeposited films showed higher quality and better properties of NPs compared to the cast films obtained from the same solutions. Electrodeposition of hybrid polymer−semiconductor films on patterned substrates was demonstrated.

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Anodic deposition of composites with a matrix of intrinsically conducting polymers

Cited by 8 publications

References 31 publications

Polyaniline-graphite composite film glucose oxidase electrode

Polyaniline-graphite composite film glucose oxidase electrode

Synthesis and characterization of conducting composites of polyaniline and carbon black with high thermal stability

Electrodeposition of Polymer−Semiconductor Nanocomposite Films

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