Layer-by-Layer Polypyrrole Coated Graphite Oxide and Graphene Nanosheets as Catalyst Support Materials for Fuel Cells

摘要: For the production of advanced types catalyst support materials, distinguished properties graphene nanosheets were combined with structural conducting polypyrrole by incorporation into a polymer matrix proposed simple and low-cost fabrication technique. A precise tuning electrical conductivity thermal stability was achieved controlling thickness randomly dispersed nanosheets. Initially, fabricated in large quantities via mild chemical synthetic route involving graphite oxidation, ultrasonic treatment, reduction. Then, polypyrrole/graphene nanosheet composites improved conductivity, stability, high surface area synthesized situ polymerization different pyrrole feed ratios. Although oxide sheets have electrically insulating property, partially oxidized also utilized as conductive fillers matrix. However, better than polypyrrole/graphite composites.