Synthesis of Sn2Nb2O7-GO nanocomposite as an anode material with enhanced lithium storage performance.
Journal of Materials Science; Mar2020, Vol. 55 Issue 8, p3561-3570, 10p, 2 Black and White Photographs, 5 Graphs
Sn2Nb2O7-GO nanocomposite was prepared via a facile hydrothermal process. The sample presented that Sn2Nb2O7 nanocrystals were homogeneously dispersed and tightly anchored on the surface of the GO nanosheets. The GO nanosheets not only act as a buffer matrix to promote the structural integrity of the active material, but also serve as a conductive media to accelerate the charge transfer and lithium-ion diffusion. As a result, Sn2Nb2O7-GO nanocomposite showed enhanced electrochemical performances compared with pure Sn2Nb2O7 and Mixture. As anode material for lithium-ion batteries, the Sn2Nb2O7-GO electrode exhibited a specific capacity of 576.6 mAh g−1 at 0.1 A g−1 current density after 100 cycles. What is more, at a higher current density 2 A g−1, a reversible capacity of about 237.8 mAh g−1 was achieved. [ABSTRACT FROM AUTHOR]
Copyright of Journal of Materials Science is the property of Springer Nature and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)
Zaloguj się, aby uzyskać dostęp do pełnego tekstu.