Carbon Nanomaterials for Energy-Related Applications | AIChE

Carbon Nanomaterials for Energy-Related Applications


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This webinar provides an overview of research activities in the area of nanostructured carbon materials with a focus on supercapacitors and other energy-related applications. Supercapacitors are devices that store electrical energy electrostatically and are used in applications where batteries cannot provide sufficient power or charge-discharge rates. Until now, their higher cost, compared to batteries with similar performance, has been limiting the use of supercapacitors in many household, automotive and other cost-sensitive applications. This presentation describes the material aspects of supercapacitor development, addresses unresolved issues, and outlines future research directions.

High surface area carbon materials are widely used as supercapacitor electrodes. Extraction of metals from carbides can generate a broad range of potentially important carbon nanostructures, which range from porous carbon networks to onions and nanotubes. They are known as Carbide-Derived Carbons (CDC). The CDC structure depends on the crystal structure of the carbide precursor as well as process parameters including temperature, time, and environment. Extraction of silicon, boron, aluminum, zirconium, or titanium from their respective carbides by chlorine at 200-1200°C results in the formation of micro- and mesoporous carbons with the specific surface area up to 3000 m²/g. CDC technology allows the control of carbon growth on the atomic level, monolayer by monolayer, with a high accuracy. It is shown that the pore size to ion size ratio determines the efficiency of electrochemical energy storage systems. Design of nanoporous carbons for supercapacitor electrodes, hydrogen and methane storage, fuel cells, and other applications is briefly addressed.

Topics covered include the variety of Carbon Nanomaterials for Energy-Related Applications, from graphene to nanotubes, activated carbons to carbon onions, and carbide-derived carbons. Their synthesis, structure, properties and applications are described. Those who would benefit from this presentation include scientists and engineers working on carbon materials, nanomaterials, materials for energy-related applications, batteries, supercapacitors fuel cells, gas storage, electrolytes, etc.

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  • Source:
    NSEF - Nanoscale Science & Engineering Forum
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