Study of carbon matrix and hybrid nanocomposite for greenhouse gas storage.

Using the sol-gel preparation method, a Carbon Matrix (CM) based on pyrogallol-formaldehyde and a hybrid NanoComposite (NC) formed by incorporating nickel oxide nanoparticles into the carbon matrix were developed. The obtained samples were heat treated by a tubular furnace under an inert atmosphere and they were characterized by different techniques such as X-ray Diffraction, X-ray Photoelectron Spectroscopy (XPS) measurements, Scanning Electron Microscopy, Brunner-Emmett-Teller method, Thermogravimetric analysis, Transmission Electron Microscopy and Admittance Spectroscopy. Using a high-throughput experimental approach, measurements of the adsorption capacity of greenhouse gases were performed, including carbon dioxide (CO2), methane (CH4) and ethane (C2H6). The significant porous texture, the uniform dispersion of metallic nanoparticles within the amorphous matrix and the emergence of Multi-Walled Carbon Nanotubes (MWCN) in the hybrid nanocomposite play a key role in the variation of electrical conductivity and the adsorption capacities of real gases. These materials show great promise for greenhouse gas storage applications.