Polymerization of pyrrole over Pd and SnO2 supported on KL zeolite

Gustavo Larsen; Gary L. Haller; Manuel Marquez

doi:10.1021/j100190a007

Polymerization of pyrrole over Pd and SnO₂ supported on KL zeolite

Gustavo Larsen, Gary L. Haller, Manuel Marquez

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Abstract

We have prepared polypyrrole-zeolite systems by oxidative polymerization over small SnO₂ particles and oxygen-covered Pd clusters supported in KL zeolite. The local structure of the Pd and SnO₂ clusters was studied by means of extended X-ray absorption fine structure (EXAFS). Electron spin resonance (ESR) and Fourier transform infrared (FTIR) spectroscopies and solvent extraction techniques were used to characterize the polymeric species in the zeolite cavities. A monomer/oxidant ratio larger than stoichiometric appears to indicate that the oxidation reaction may proceed catalytically after air exposure rather than in a redox fashion.

Original language	English (US)
Pages (from-to)	4145-4148
Number of pages	4
Journal	Journal of Physical Chemistry
Volume	96
Issue number	11
DOIs	https://doi.org/10.1021/j100190a007
State	Published - 1992
Externally published	Yes

ASJC Scopus subject areas

General Engineering
Physical and Theoretical Chemistry

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abstract = "We have prepared polypyrrole-zeolite systems by oxidative polymerization over small SnO2 particles and oxygen-covered Pd clusters supported in KL zeolite. The local structure of the Pd and SnO2 clusters was studied by means of extended X-ray absorption fine structure (EXAFS). Electron spin resonance (ESR) and Fourier transform infrared (FTIR) spectroscopies and solvent extraction techniques were used to characterize the polymeric species in the zeolite cavities. A monomer/oxidant ratio larger than stoichiometric appears to indicate that the oxidation reaction may proceed catalytically after air exposure rather than in a redox fashion.",

author = "Gustavo Larsen and Haller, {Gary L.} and Manuel Marquez",

year = "1992",

doi = "10.1021/j100190a007",

language = "English (US)",

volume = "96",

pages = "4145--4148",

journal = "Journal of Physical Chemistry",

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publisher = "American Chemical Society",

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T1 - Polymerization of pyrrole over Pd and SnO2 supported on KL zeolite

AU - Larsen, Gustavo

AU - Haller, Gary L.

AU - Marquez, Manuel

PY - 1992

Y1 - 1992

N2 - We have prepared polypyrrole-zeolite systems by oxidative polymerization over small SnO2 particles and oxygen-covered Pd clusters supported in KL zeolite. The local structure of the Pd and SnO2 clusters was studied by means of extended X-ray absorption fine structure (EXAFS). Electron spin resonance (ESR) and Fourier transform infrared (FTIR) spectroscopies and solvent extraction techniques were used to characterize the polymeric species in the zeolite cavities. A monomer/oxidant ratio larger than stoichiometric appears to indicate that the oxidation reaction may proceed catalytically after air exposure rather than in a redox fashion.

AB - We have prepared polypyrrole-zeolite systems by oxidative polymerization over small SnO2 particles and oxygen-covered Pd clusters supported in KL zeolite. The local structure of the Pd and SnO2 clusters was studied by means of extended X-ray absorption fine structure (EXAFS). Electron spin resonance (ESR) and Fourier transform infrared (FTIR) spectroscopies and solvent extraction techniques were used to characterize the polymeric species in the zeolite cavities. A monomer/oxidant ratio larger than stoichiometric appears to indicate that the oxidation reaction may proceed catalytically after air exposure rather than in a redox fashion.

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JO - Journal of Physical Chemistry

JF - Journal of Physical Chemistry

IS - 11

ER -

Polymerization of pyrrole over Pd and SnO₂ supported on KL zeolite

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