Investigation of the Thermal Behavior of Polypyrrole/Carbon Nanotube Composites and Utilization as Capacitive Material or Support for Catalysts

In this study, polypyrrole (PPy)/carbon nanotube (CNT) composites were synthesized by in situ chemical oxidative polymerization of a pyrrole monomer on CNT. Two different types of CNT having different structural properties were used. The composites were characterized using BET surface area analysis,...

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Bibliographic Details
Published in:Chemical engineering communications 2017-08, Vol.204 (8), p.916-925
Main Authors: Bayrakçeken, Hatice, Naktiyok, Jale, Özer, A. Kadir, Yurtcan, Ayşe Bayrakçeken
Format: Article
Language:English
Subjects:
Carbon nanotubes
Chemical synthesis
Composite materials
Fourier transforms
Gravimetric analysis
Infrared analysis
Infrared spectroscopy
Isoconversional method
Kinetics
Microwave irradiation
Nanotubes
Particulate composites
Polymerization
Polypyrrole/CNT composite
Pt nanoparticle
Reaction kinetics
Spectroscopic analysis
Thermal analysis
Thermal decomposition
Thermodynamic properties
Thermogravimetric analysis
Thermogravimetric analysis (TGA)
X-ray diffraction
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Summary:In this study, polypyrrole (PPy)/carbon nanotube (CNT) composites were synthesized by in situ chemical oxidative polymerization of a pyrrole monomer on CNT. Two different types of CNT having different structural properties were used. The composites were characterized using BET surface area analysis, Fourier transform infrared spectroscopy (FTIR), X-ray diffraction (XRD), and thermogravimetric analysis (TGA) techniques. Thermal decomposition kinetics of PPy/CNT composites was studied by thermal gravimetric analysis techniques (TG/DTG (differential thermal gravimetric)) at different heating rates (2.5, 5, 7.5, and 10 K min −1 ). Kinetic parameters of the composites were obtained from the TG and DTG curves using the Kissinger-Akahira-Sunose (KAS) and Flynn-Wall-Ozawa (FWO) models. The electrochemical capacitive properties of the composites were investigated by the cyclic voltammetry (CV) technique. Pt nanoparticles were decorated on the plain CNTs and composite materials via the microwave irradiation method.
ISSN:0098-6445
1563-5201
DOI:10.1080/00986445.2017.1328409