Expanded graphite composites

The mechanisms and reasons of catalytic activity of polyaniline (PANI)-type conducting polymers toward oxygen reduction in acidic and saline solutions are investigated by electrochemical and quantum-chemical methods. The PANI/thermally expanded graphite compositions were developed for realization of fully functional air gas-diffusion electrodes. Principally new concept for creation of rechargeable metal-air batteries with such type of catalysts is proposed. The mockups of primary and rechargeable metal-air batteries with new type of polymer composite catalysts were developed and tested. 

Conducting polymers, polyaniline, catalytic activity, PANI/expanded graphite composites, metal-air batteries, primary rechargeable cells. 

The above phenomenon has found a practical application for development of metal-air battery mockups with low costs PANI/Expanded Graphite composite catalysts. 

We believe that new type of conducting polymer / expanded graphite composite electrodes as gas-diffusion cathodes will find in perspective a practical application for some types of batteries and fuel cells. 

Chen and co-workers [2] carried out a study of the flammability characteristics and synergistic effects of different particle sizes of expanded graphite with modified magnesium hydroxide in flame retardant PP composites. They showed by LOI measurements that the particle size of the expanded graphite had a great effect on the flammability of PP - magnesium hydroxide - expanded graphite composites their similar particle sizes increased the LOI value. 

PMMA expandable graphite composites Silane grafted on polymer LOl and TGA used to calculate flame retardance and thermal stability [41]... 

X. Zhao, Q. Zhang, D. Chen, P. Lu (2010). Enhanced mechanical properties of graphene-based poly(vinyl alcohol) composites. Macromolecules 43, 2357 Zheng W, Wong SC (2003) Electrical conductivity and dielectric properties of PMMA/expanded graphite composites. Compos Sci Technol 63 225... 

Zheng W, Wong S C (2003), Electrical conductivity and dielectric properties of PMMA/expanded graphite composites . Compos Sci Technol, 63, 225. 

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