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X-ray absorption spectroscopy of nanostructured polyanilines

  • Gustavo Nascimento EMAIL logo
Veröffentlicht/Copyright: 3. Mai 2013
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Chemical Papers
Aus der Zeitschrift Chemical Papers Band 67 Heft 8

Abstract

In this paper, X-ray absorption near edge spectroscopy at the nitrogen K edge (N K XANES) data of polyaniline (PANI) and its derivatives were revisited and expanded. The N K XANES spectra of PANI nanocomposites and PANI nanofibers were also investigated. The analysis of N K XANES spectra were done by the deconvolution of bands and the 1s → π* and 1s → σ* transitions were assigned by a correlation with the N K XANES spectra of smaller organic compounds. The “free” forms of PANI were dominated by bands from 397.7 eV to 399.1 eV attributed to imine and radical cation nitrogen atoms, respectively. Nitrogen bonded to phenazine-like rings can also be seen, mainly for PANI prepared at pH higher than 3.0. The spectra of nanocomposites show sharper bands than the “free” polymers as well as new bands at 398.8 eV and 405–406 eV. These new bands were assigned to phenazine-like rings and azo bonds in the structure of the polymers (polyaniline, polybenzidine, and poly(p-phenylediamine)) within the galleries of the montmorillonite clay. PANI nanofibers doped with HCl or HClO4 show bands related to phenazine-like rings and/or dication segments of PANI, indicating that these segments are important in the formation of PANI nanofibers.

Keywords: polyaniline; XANES; X-ray absorption; nanocomposites; nanofibers

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Published Online: 2013-5-3
Published in Print: 2013-8-1

© 2013 Institute of Chemistry, Slovak Academy of Sciences

Artikel in diesem Heft

  1. Recent trends and progress in research into structure and properties of polyaniline and polypyrrole — Topical Issue
  2. Printing polyaniline for sensor applications
  3. Carbonised polyaniline and polypyrrole: towards advanced nitrogen-containing carbon materials
  4. Conducting polymer-silver composites
  5. Electrorheological response of polyaniline and its hybrids
  6. Effect of PPy/PEG conducting polymer film on electrochemical performance of LiFePO4 cathode material for Li-ion batteries
  7. Polyaniline micro-/nanostructures: morphology control and formation mechanism exploration
  8. Self-assembly of aniline oligomers and their induced polyaniline supra-molecular structures
  9. Self-organization of polyaniline during oxidative polymerization: formation of granular structure
  10. Influence of ethanol on the chain-ordering of carbonised polyaniline
  11. X-ray absorption spectroscopy of nanostructured polyanilines
  12. Effect of cations on polyaniline morphology
  13. Preparation of polyaniline in the presence of polymeric sulfonic acids mixtures: the role of intermolecular interactions between polyacids
  14. Chemical degradation of polyaniline by reaction with Fenton’s reagent — a spectroelectrochemical study
  15. Thin mesoporous polyaniline films manifesting a water-promoted photovoltaic effect
  16. Polyamide grafted with polypyrrole: formation, properties, and stability
  17. Effect of ionic liquid on polyaniline chemically synthesised under falling-pH conditions
  18. Polyaniline doped with poly(acrylamidomethylpropanesulphonic acid): electrochemical behaviour and conductive properties in neutral solutions
  19. Electrical transport properties of poly(aniline-co-p-phenylenediamine) and its composites with incorporated silver particles
  20. Bi-hybrid coatings: polyaniline-montmorillonite filler in organic-inorganic polymer matrix
  21. Preparation of aqueous polyaniline-vesicle suspensions with class III peroxidases. Comparison between horseradish peroxidase isoenzyme C and soybean peroxidase
  22. Preparation, characterisation, and dielectric properties of polypyrrole-clay composites
  23. Multi-wall carbon nanotubes with nitrogen-containing carbon coating
  24. Conducting poly(o-anisidine)-coated steel electrodes for supercapacitors
  25. Conducting polyaniline/multi-wall carbon nanotubes composite paints on low carbon steel for corrosion protection: electrochemical investigations
  26. Preparation of a miniaturised iodide ion selective sensor using polypyrrole and pencil lead: effect of double-coating, electropolymerisation time, and current density
  27. Role of polyaniline morphology in Pd particles dispersion. Hydrogenation of alkynes in the presence of Pd-polyaniline catalysts
  28. Nanostructured polyaniline-coated anode for improving microbial fuel cell power output
  29. Antibacterial properties of polyaniline-silver films
  30. Effect of compression pressure on mechanical and electrical properties of polyaniline pellets
https://doi.org/10.2478/s11696-013-0344-6
Schlagwörter für diesen Artikel
polyaniline; XANES; X-ray absorption; nanocomposites; nanofibers

Artikel in diesem Heft

  1. Recent trends and progress in research into structure and properties of polyaniline and polypyrrole — Topical Issue
  2. Printing polyaniline for sensor applications
  3. Carbonised polyaniline and polypyrrole: towards advanced nitrogen-containing carbon materials
  4. Conducting polymer-silver composites
  5. Electrorheological response of polyaniline and its hybrids
  6. Effect of PPy/PEG conducting polymer film on electrochemical performance of LiFePO4 cathode material for Li-ion batteries
  7. Polyaniline micro-/nanostructures: morphology control and formation mechanism exploration
  8. Self-assembly of aniline oligomers and their induced polyaniline supra-molecular structures
  9. Self-organization of polyaniline during oxidative polymerization: formation of granular structure
  10. Influence of ethanol on the chain-ordering of carbonised polyaniline
  11. X-ray absorption spectroscopy of nanostructured polyanilines
  12. Effect of cations on polyaniline morphology
  13. Preparation of polyaniline in the presence of polymeric sulfonic acids mixtures: the role of intermolecular interactions between polyacids
  14. Chemical degradation of polyaniline by reaction with Fenton’s reagent — a spectroelectrochemical study
  15. Thin mesoporous polyaniline films manifesting a water-promoted photovoltaic effect
  16. Polyamide grafted with polypyrrole: formation, properties, and stability
  17. Effect of ionic liquid on polyaniline chemically synthesised under falling-pH conditions
  18. Polyaniline doped with poly(acrylamidomethylpropanesulphonic acid): electrochemical behaviour and conductive properties in neutral solutions
  19. Electrical transport properties of poly(aniline-co-p-phenylenediamine) and its composites with incorporated silver particles
  20. Bi-hybrid coatings: polyaniline-montmorillonite filler in organic-inorganic polymer matrix
  21. Preparation of aqueous polyaniline-vesicle suspensions with class III peroxidases. Comparison between horseradish peroxidase isoenzyme C and soybean peroxidase
  22. Preparation, characterisation, and dielectric properties of polypyrrole-clay composites
  23. Multi-wall carbon nanotubes with nitrogen-containing carbon coating
  24. Conducting poly(o-anisidine)-coated steel electrodes for supercapacitors
  25. Conducting polyaniline/multi-wall carbon nanotubes composite paints on low carbon steel for corrosion protection: electrochemical investigations
  26. Preparation of a miniaturised iodide ion selective sensor using polypyrrole and pencil lead: effect of double-coating, electropolymerisation time, and current density
  27. Role of polyaniline morphology in Pd particles dispersion. Hydrogenation of alkynes in the presence of Pd-polyaniline catalysts
  28. Nanostructured polyaniline-coated anode for improving microbial fuel cell power output
  29. Antibacterial properties of polyaniline-silver films
  30. Effect of compression pressure on mechanical and electrical properties of polyaniline pellets
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