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Title: Rapid Pseudocapacitive Sodium-Ion Response Induced by 2D Ultrathin Tin Monoxide Nanoarrays
Authors: Chen, Minghua
Chao, Dongliang
Liu, Jilei
Yan, Jiaxu
Zhang, Bowei
Huang, Yizhong
Lin, Jianyi
Shen, Ze Xiang
Keywords: Tin
Issue Date: 2017
Source: Chen, M., Chao, D., Liu, J., Yan, J., Zhang, B., Huang, Y., et al. (2017). Rapid Pseudocapacitive Sodium-Ion Response Induced by 2D Ultrathin Tin Monoxide Nanoarrays. Advanced Functional Materials, 27(12), 1606232-.
Series/Report no.: Advanced Functional Materials
Abstract: Nanostructured tin-based anodes are promising for both lithium and sodium ion batteries (LIBs and SIBs), but their performances are limited by the rate capability and long-term cycling stability. Here, ultrathin SnO nanoflakes arrays are in situ grown on highly conductive graphene foam/carbon nanotubes substrate, forming a unique, flexible, and binder-free 3D hybrid structure electrode. This electrode exhibits an excellent Na+ storage capacity of 580 mAh g−1 at 0.1 A g−1, and to the best of our knowledge, has the longest-reported high-rate cycling (1000 cycles at 1 A g−1) among tin-based SIB anodes. Compared with its LIB performance, the enhanced pseudocapacitive contribution in SIB is proved to be the origin of fast kinetics and long durability of the electrode. Moreover, Raman peaks from the full sodiation product Na15Sn4 at 75 and 105 cm−1 are successfully detected and also proved by density functional theory calculations, which could be a promising clue for structure evolution analysis of other tin-based electrodes.
ISSN: 1616-301X
DOI: 10.1002/adfm.201606232
Rights: © 2017 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim.
Fulltext Permission: none
Fulltext Availability: No Fulltext
Appears in Collections:SPMS Journal Articles

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