期刊
BIORESOURCE TECHNOLOGY
卷 342, 期 -, 页码 -出版社
ELSEVIER SCI LTD
DOI: 10.1016/j.biortech.2021.125918
关键词
Bacterial nanocellulose; Komagataeibacter sucrofermentans; Crude glycerol; Nanostructured carbon; Supercapacitor
资金
- Korea Institute of Energy Technology Evaluation and Planning (KETEP) - Ministry of Trade, Industry Energy (MOTIE) [20202020800330]
- Graduate School of Post Plastic Specialisation, a part of the Korea Environmental Industry & Technology Institute - Ministry of Environment, Republic of Korea
- Hanyang University in the Republic of Korea [HY-201100000000233-N]
This study demonstrates the efficient production of BNC using waste glycerol from the biodiesel industry as a carbon source, and the application of carbonized BNC in energy storage. The carbon materials derived from BNC exhibit promising electrochemical properties and energy storage potential as renewable materials.
Bacterial nanocellulose (BNC), which has tunable properties, is a precursor of nanostructured energy storage materials; however, the cost of BNC production is challenging. This study uses crude glycerol from the biodiesel industry as a carbon nutrient and first-time carbonised BNC from K. sucrofermentans that is applied in energy storage. From crude glycerol in static cultivation, 6.4 g L-1 BNC was produced with a high crystallinity index (85%) and tensile properties in comparison to conventionally used pure carbon substrates. Carbon materials were derived from the BNC retained fibrous and crystalline features with disordered porous structures. The electrochemical properties of the carbon materials have a specific capacitance of 140 F g(-1). This study highlights the valorisation of waste glycerol from the biodiesel industry as a substrate for efficient BNC production and the energy storage potential of carbon derived from BNC as renewable energy materials.
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