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UNIVERSITY OF BUCHAREST
FACULTY OF PHYSICS Guest
2024-11-22 1:47 |
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Conference: Bucharest University Faculty of Physics 2006 Meeting
Section: Polymer Physics
Title:
New Electrodes Based On Microcelular Carbon Foams
Authors:
I. Stamatin, Adina Morozan, S. Vulpe, F. Nastase, Claudia Nastase
Affiliation:
3 Nano-SAE Research Centre, University of Bucharest, MG-38, 077125, Bucharest-Magurele, Romania
E-mail
istarom@polymer.fizica.unibuc.ro
Keywords:
carbon foam, nanotubes, polyacrilonitrile, electrode
Abstract:
A number of interesting carbon forms can be prepared by the carbonization of different polymers useful in active carbon, molecular sieves fully dense thin carbon films, porous films, and microcellular foams. The basic structures are a combination of graphenes, turbostratic and disordered carbon. In the last decade carbon foams obtained from the well known PAN-derived carbon fibres was developed to produce low platinum loading electrode structures for fuel cells, respective in biofuel cells which needs a high bioafinity with different types of microorganisms. Due to the necessity to increase specific area and to develop new electrodes, we expanded applications with polyacrylonitrile (PAN) and formaldehyde resins carbonization in the presence of ferrocene catalyst to obtain microcellular carbon foam with high content of nanotubes. The method engages sol-gel process, extraction in thermo-centrifugal field and pyrolysis in the presence of ferrocene up to 9000C. The results show a microcellular structure of carbon with high content of MWNTs.
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