Valorization of Bacterial Cellulose Produced from Crude Glycerol by Application of Energy Storage Materials

다국어 초록 (Multilingual Abstract)

Bacterial nanocellulose (BNC), a value-added biomaterial, has attracted attentions as an ideal precursor for nanostructured energy storage materials due to its fascinating features such as high purity, high crystallinity, and mechanical properties. However, the cost of BNC production is a challenge for its industrial applications. The present study used crude glycerol from the biodiesel industry as a carbon source for BNC production with Komagataeibacter sucrofermentans, and higher BNC production was observed in crude glycerol medium than glucose and pure glycerol media. BNC from crude glycerol medium showed a density of 0.92 g cm<SUP>-3</SUP> and a porosity of 38.6% as well as high crystallinity index (85%) and tensile strength (110 ㎫). The derived carbon materials by carbonization of BNC demonstrated highly porous structures and were evaluated for the supercapacitor application. This study showed the valorization of waste resources from the biodiesel industry to bio-nanomaterial and the potential of derived carbon as electrode materials for energy storage applications.