Progressively exposing active facets of 2D nanosheets toward enhanced pseudocapacitive response and high‐rate sodium storage
Sodium-ion batteries are gradually regarded as a prospective alternative to lithium-ion batteries due to the cost consideration. Here, three kinds of tin (IV) sulfide nanosheets are controllably designed with progressively exposed active facets, leading to beneficial influences on the Na+ storage...
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Main Authors: | , , , , , , , , |
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Other Authors: | |
Format: | Article |
Language: | English |
Published: |
2020
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Subjects: | |
Online Access: | https://hdl.handle.net/10356/144673 |
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Institution: | Nanyang Technological University |
Language: | English |
Summary: | Sodium-ion batteries are gradually regarded as a prospective alternative
to lithium-ion batteries due to the cost consideration. Here, three kinds
of tin (IV) sulfide nanosheets are controllably designed with progressively
exposed active facets, leading to beneficial influences on the Na+ storage
kinetics, resulting in gradient improvements of pseudocapacitive response
and rate performance. Interestingly, different forms of kinetics results are
generated accompanying with the morphology and structure evolution of the
three nanosheets. Finally, detailed density functional theory simulations are
also applied to analyze the above experimental achievements, proving that
different exposed facets of crystalline anodes possess dissimilar Na+ storage
kinetics. The investigation experiences and conclusions shown in this work
are meaningful to explore many other proper structure design routes toward
the high-rate and stable metal-ions storage. |
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