| 초록 |
Recently, biomass conversion technologies have steadily researched on the carbon-based material fields owing to their specific characteristics such as abundance, ease of processing and environmentally-friendly. Here is an introduction for a kind of biomass, lignin which in a main composition of lignocellulosic structure of lignum material and also the second abundant aromatic biopolymer in nature. Lignin was used as a carbon precursor to manufacture carbonaceous material with high surface area based on hierarchically, nano-sized pore structure. Hydrothermal carbonization and chemical activation were carried out to change carbon precursor to object porous carbon which possessed ultrahigh specific surface area over 2800 m2 g-1. Based on their high specific surface area and hierarchical porous architecture, the as-obtained product showed excellent ion and electron transport properties, which can be a benefit for developing high power density in ultracapacitor application. |
