Inagaki et al.'s definition of nanocarbons takes into account controlling structure and texture in addition to size at the nanometre scale. Both nanoscale and porous nanostructured carbons are taken into account. The most recent research in the area, emphasising how surface chemistry and textural characteristics affect the characteristics and performance of catalysts, in order to offer direction for future developments. Nanocarbons are superior to conventional carbon materials in many ways when used in catalytic applications. This is brought about by improved electron transfer, new effects brought about by curvature, confinement, and more suitable textural properties, as well as by better heteroatom doping. In the fine chemical and pharmaceutical industries, carbon-supported metal catalysts are primarily used. Today's materials include activated carbons and carbon black.