Nanocarbon material and chemicals from seaweed for energy storage components

Seaweed is a promising biomass resource for producing high-added-value materials, such as food or usable flavoring to improve the nutritious quality of food preparation and active components with antioxidant and anti-excitant properties, an alternative renewable resource for biofuel production, chemicals, and nanocarbon materials (such as activated carbon, graphene, and carbon nanotube). Nanocarbon material is carbonaceous material with high porosity and large surface area, which can be used in many applications. The nanocarbon is suitable for electrical component electrode material with high porosity and good conductivity. Activated carbon is commonly used as an adsorbent, catalyst support, and energy storage. Graphene is a carbon fiber that is only composed of one layer of carbon atoms arranged in a honeycomb lattice so that the electric current moves very quickly. Nanoparticles of activated carbon, graphene, and carbon nanotube can be produced using various methods, such as hydrothermal, pyrolysis, impregnation, and activation. This chapter focuses on the options for developing nanocarbon materials and chemicals from seaweed. The char from its hydrothermal process is then activated using the furnace. The results of SEM analysis of activated char shows the formation of allotropes of carbon, including carbon microspheres, carbon microfibers, and graphene. These structures have encountered applications in various technological fields, such as adsorption, catalysis, hydrogen storage, and electronics.