Hierarchical Hybrid Catalysts from Flexible Fabric Substrates

W. Wang and S.M. Mukhopadhyay
Wright State University,
United States

Keywords: carbon cloth, nanotube carpets, cell scaffolding, nanocatalyst particles

Summary:

Multi-scale hierarchical materials based on porous foams have been shown to be very useful in a large number of applications due to their unique surface/volume ratio combined with carefully controlled chemistry. The goal of this project is to investigate fabrication and properties of this type of architecture on carbon fiber cloth, which opens up the possibility of adapting this architecture in a larger variety of flexible and durable devices. Such materials have been synthesized by chemical Vapor Deposition and characterized using scanning electron microscope (SEM), energy dispersive spectroscopy(EDS) and x-ray photoelectron spectroscopy(XPS). Multiwall carbon nanotube (MWCNTs) forests on fabric materials are further modified with hydrophilic coatings and decorated with metallic nanoparticles. Their properties have been compared with those of three dimensional reticulated foams reported earlier. These fibrous materials are being collaboratively tested for a variety of applications such as biological cell scaffolding, charge storage and catalytic degradation of water-borne contaminants.