Nitrogen doped porous carbon as excellent dual anodes for Li- and Na-ion batteries

• Published in: Chinese chemical letters Vol. 31; no. 2; pp. 583 - 588
• Main Authors: Yan, Zhanheng, Yang, Qin-Wen, Wang, Qinghong, Ma, Jianmin
• Format: Journal Article
• Language: English
• Published: Elsevier B.V 01.02.2020; Key Laboratory of Materials Processing and Mold (Zhengzhou University), Ministry of Education, Zhengzhou University, Zhengzhou 450002, China; School of Physics and Electronics, Hunan University, Changsha 410082, China%State Key Laboratory of Advanced Design and Manufacturing for Vehicle Body, College of Mechanical and Vehicle Engineering, Hunan University, Changsha 410082, China%School of Chemistry and Materials Science, Jiangsu Key Laboratory of Green Synthetic Chemistry for Functional Materials, Jiangsu Normal University, Xuzhou 221116, China%School of Physics and Electronics, Hunan University, Changsha 410082, China
• Subjects: Anode; Carbon; Lithium-ion batteries; Nitrogen doping; Sodium-ion batteries; Lithium-ion batteries; Nitrogen doping; Anode; Carbon; Sodium-ion batteries
• ISSN: 1001-8417; 1878-5964
• DOI: 10.1016/j.cclet.2019.11.002

Bamboo leaves-derived nitrogen doped hierarchically porous carbon could deliver a high discharge capacity of 450 mA h/g after 500 cycles at 0.2 A/g for lithium-ion battery, and a discharge capacity of 180 mA h/g after 300 cycles at 0.1 A/g for sodium-ion battery. [Display omitted] Biomass-derived carbon materials have obtained great attention due to their sustainability, easy availability, low cost and environmentally benign. In this work, bamboo leaves derived nitrogen doped hierarchically porous carbon have been efficiently synthesized via an annealing approach, followed by an etching process in HF solution. Electrochemical measurements demonstrate that the unique porous structure, together with the inherent high nitrogen content, endow the as-derived carbon with excellent lithium/sodium storage performance. The porous carbon annealed at 700 °C presents outstanding rate capability and remarkable long-term stability as anodes for both lithium-ion batteries and sodium-ion batteries. The optimized carbon delivers a high discharge capacity of 450 mAh/g after 500 cycles at the current density of 0.2 A/g for LIBs, and a discharge capacity of 180 mAh/g after 300 cycles at the current density of 0.1 A/g for SIBs