Tailoring the Sodium Storage Performance of Carbon Nanowires by Microstructure Design and Surface Modification with N, O and S Heteroatoms. Issue 11 (17th August 2017)

• Record Type: Journal Article
• Authors: Qiao, Yun; Ma, Mengyue; Liu, Yang; Han, Ruimin; Cheng, Xiaoguang; Li, Qingling; Li, Xiangnan; Dong, Hongyu; Yin, Yanhong; Yang, Shuting
• Is Part Of: ChemElectroChem. Volume 4:Issue 11(2017)
• Page Start: 2877
• Page End: 2883
• Publication Date: 2017-08-17
• Subjects: Doping -- electrode materials -- heteroatoms -- microporosity -- sodium ion batteries; Electrochemistry -- Periodicals; 541.37
• DOI: 10.1002/celc.201700554
• Languages: English
• ISSNs: 2196-0216

Abstract

Abstract: The electronic environment and physicochemical property of carbon materials can be easily tailored and modulated by heteroatom doping. Herein, we demonstrate that net‐like N, O, S triple‐doped microporous carbon nanowires (NOS‐MCNs) as an anode can be designed to improve the electrochemical performance of sodium ion batteries. Ammonium persulfate as oxidant can also provide a nitrogen and sulfur source for S‐containing PPy. The N, O and S atoms are introduced into the carbon skeleton with activation and carbonization processes to modify the surface properties. As an anode, the material exhibits a high specific capacity and a long lifespan (≈301 mA h g −1 at 0.2 A g −1 after 1000 cycles) as well as an excellent rate capability (158 mA h g −1 at an extremely high current density of 10 A g −1 ). This work offers a facile strategy to synthesize triple‐doped porous carbon materials for sodium ion batteries and other energy‐storage fields. Abstract : It′s as easy as one, two, three : Microporous carbon nanowires triple‐doped with N, O and S heteroatoms (NOS‐MCNs) were prepared as anode materials to improve the electrochemical performance of sodium‐ion batteries. As an anode, the material exhibits a high specific capacity and a long lifespan (≈301 mA h g −1 at 0.2 A g −1 after 1000 cycles).