作者：Jiakang Min*, Jiaxin Li, Changde Ma, Jiang Gong*, Xin Wen, Xuecheng Chen, Ewa Mijowska, Tao Tang, Jalal Azadmanjiri*
关键字：nanoporous carbons, metal-organic framework,CO2 storage, lithium-ion batteries
论文来源：期刊
发表时间：2019年

Poly-lysine conversion to nitrogen-containing porous carbon flakes: Potential application in supercapacitors

The derived lysine from biomass fermentation is a naturally abundant renewable resource. However, the small molecular size of lysine limits its processing and application. On the other side, carbonization of polylysine into high‐valued carbon materials is one of convenient options to apply for energy storage devices. Herein, we prepare polylysine@silica hybrid nanostructure through thermal polymerization of lysine and biosilicification of tetraethoxysilane (TEOS). Subsequently, nitrogen‐containing porous carbon flakes (NPCF) are synthesized upon carbonization. Interestingly, the synthesized NPCF presents hierarchical porous framework structure with interconnected micro‐meso‐macro pores. Consequently, the NPCF delivers an excellent supercapacitor performance. For instance, our characterizations display specific capacitance up to 242?F/g at 1 mV/s and 186?F/g at 1 A/g, and could keep 96.3% initial capacity after 10,000 cycles at 10 A/g. These achievements are because of hierarchical porosity, proper nitrogen content, and accessible surface area of nanostructured NPCF. Therefore, our work creates a novel and sustainable route for fabricating NPCF with promising applications in the supercapacitors. © 2019 Wiley Periodicals, Inc. J. Appl. Polym. Sci. 2019, 136, 48214.

https://onlinelibrary.wiley.com/doi/10.1002/app.48214