Please use this identifier to cite or link to this item:
https://hdl.handle.net/2440/130365
Citations | ||
Scopus | Web of Science® | Altmetric |
---|---|---|
?
|
?
|
Full metadata record
DC Field | Value | Language |
---|---|---|
dc.contributor.author | Zhou, T. | - |
dc.contributor.author | Pang, W.K. | - |
dc.contributor.author | Zhang, C. | - |
dc.contributor.author | Yang, J. | - |
dc.contributor.author | Chen, Z. | - |
dc.contributor.author | Liu, H.K. | - |
dc.contributor.author | Guo, Z. | - |
dc.date.issued | 2014 | - |
dc.identifier.citation | ACS Nano, 2014; 8(8):8323-8333 | - |
dc.identifier.issn | 1936-0851 | - |
dc.identifier.issn | 1936-086X | - |
dc.identifier.uri | http://hdl.handle.net/2440/130365 | - |
dc.description.abstract | Structural phase transitions can be used to alter the properties of a material without adding any additional elements and are therefore of significant technological value. It was found that the hexagonal-SnS2 phase can be transformed into the orthorhombic-SnS phase after an annealing step in an argon atmosphere, and the thus transformed SnS shows enhanced sodium-ion storage performance over that of the SnS2, which is attributed to its structural advantages. Here, we provide the first report on a SnS@graphene architecture for application as a sodium-ion battery anode, which is built from two-dimensional SnS and graphene nanosheets as complementary building blocks. The as-prepared SnS@graphene hybrid nanostructured composite delivers an excellent specific capacity of 940 mAh g(-1)and impressive rate capability of 492 and 308 mAh g(-1) after 250 cycles at the current densities of 810 and 7290 mA g(-1), respectively. The performance was found to be much better than those of most reported anode materials for Na-ion batteries. On the basis of combined ex situ Fourier transform infrared spectroscopy, X-ray photoelectron spectroscopy, and ex situ X-ray diffraction, the formation mechanism of SnS@graphene and the synergistic Na-storage reactions of SnS in the anode are discussed in detail. The SnS experienced a two-structural-phase transformation mechanism (orthorhombic-SnS to cubic-Sn to orthorhombic-Na3.75Sn), while the SnS2 experienced a three-structural-phase transformation mechanism (hexagonal-SnS2 to tetragonal-Sn to orthorhombic-Na3.75Sn) during the sodiation process. The lesser structural changes of SnS during the conversion are expected to lead to good structural stability and excellent cycling stability in its sodium-ion battery performance. These results demonstrate that the SnS@graphene architecture offers unique characteristics suitable for high-performance energy storage application. | - |
dc.description.statementofresponsibility | Tengfei Zhou, Wei Kong Pang, Chaofeng Zhang, Jianping Yang, Zhixin Chen, Hua Kun Liu and Zaiping Guo | - |
dc.language.iso | en | - |
dc.publisher | American Chemical Society | - |
dc.rights | © 2014 American Chemical Society | - |
dc.source.uri | http://dx.doi.org/10.1021/nn503582c | - |
dc.subject | Sodium-ion battery; NIB; SIB; SnS; SnS2; Sn; graphene; nanosheets; anode | - |
dc.title | Enhanced sodium-ion battery performance by structural phase transition from two-dimensional hexagonal-SnS₂ to orthorhombic-SnS | - |
dc.title.alternative | Enhanced sodium-ion battery performance by structural phase transition from two-dimensional hexagonal-SnS(2) to orthorhombic-SnS | - |
dc.type | Journal article | - |
dc.identifier.doi | 10.1021/nn503582c | - |
dc.relation.grant | http://purl.org/au-research/grants/arc/DP1094261 | - |
pubs.publication-status | Published | - |
dc.identifier.orcid | Guo, Z. [0000-0003-3464-5301] | - |
Appears in Collections: | Aurora harvest 8 Chemistry and Physics publications |
Files in This Item:
There are no files associated with this item.
Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.