Thin-walled graphitic nanocages with nitrogen-doping as superior performance anodes for lithium-ion batteries. Issue 65 (21st June 2016)

• Record Type: Journal Article
• Authors: Hong, Cheng Yang; Sheng, Zhao Min; Hu, Ming Hui; Dai, Xian You; Chang, Cheng Kang; Chen, Qi Zhong; Zhang, Dong Yun
• Is Part Of: RSC advances. Volume 6:Issue 65(2016)
• Page Start: 59896
• Page End: 59899
• Publication Date: 2016-06-21
• Subjects: Chemistry -- Periodicals; 540.5
• DOI: 10.1039/c6ra10803b
• Languages: English
• ISSNs: 2046-2069

Abstract

Abstract : N-Doped nanocages were prepared with thin-walled graphitic shells (∼1.2 nm), which enhanced electrochemical performance of the nanocages. Abstract : N-Doped nanocages with thin-walled graphitic shells (∼1.2 nm) were synthesized by removing the ferrous cores of Fe@C nanoparticles. The Fe@C nanopores were prepared by floating catalytic pyrolysis with the N atoms being in situ doped in their graphitic shells. Due to the thin-walled graphitic shells of the nanocages, the fast distribution of the electrolyte and ions was achieved and the prepared nanocage-based anode of lithium-ion batteries showed excellent performance: a high reversible specific capacity (after 50 cycles; 760 mA h g −1 at 0.5 A g −1 ) and a remarkable rate capability (after 40 cycles; 250 mA h g −1 at 10 A g −1 ).