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Hierarchical Graphene-Encapsulated Hollow SnO2@SnS2 Nanostructures with Enhanced Lithium Storage Capability.
ACS Appl Mater Interfaces. 2015 Oct 14; 7(40):22533-41.AA

Abstract

Complex hierarchical structures have received tremendous attention due to their superior properties over their constitute components. In this study, hierarchical graphene-encapsulated hollow SnO2@SnS2 nanostructures are successfully prepared by in situ sulfuration on the backbones of hollow SnO2 spheres via a simple hydrothermal method followed by a solvothermal surface modification. The as-prepared hierarchical SnO2@SnS2@rGO nanocomposite can be used as anode material in lithium ion batteries, exhibiting excellent cyclability with a capacity of 583 mAh/g after 100 electrochemical cycles at a specific current of 200 mA/g. This material shows a very low capacity fading of only 0.273% per cycle from the second to the 100th cycle, lower than the capacity degradation of bare SnO2 hollow spheres (0.830%) and single SnS2 nanosheets (0.393%). Even after being cycled at a range of specific currents varied from 100 mA/g to 2000 mA/g, hierarchical SnO2@SnS2@rGO nanocomposites maintain a reversible capacity of 664 mAh/g, which is much higher than single SnS2 nanosheets (374 mAh/g) and bare SnO2 hollow spheres (177 mAh/g). Such significantly improved electrochemical performance can be attributed to the unique hierarchical hollow structure, which not only effectively alleviates the stress resulting from the lithiation/delithiation process and maintaining structural stability during cycling but also reduces aggregation and facilitates ion transport. This work thus demonstrates the great potential of hierarchical SnO2@SnS2@rGO nanocomposites for applications as a high-performance anode material in next-generation lithium ion battery technology.

Authors+Show Affiliations

Department of Mechanical & Industrial Engineering, Louisiana State University , Baton Rouge, Louisiana 70803, United States.Department of Mechanical & Industrial Engineering, Louisiana State University , Baton Rouge, Louisiana 70803, United States.Department of Mechanical & Industrial Engineering, Louisiana State University , Baton Rouge, Louisiana 70803, United States.State Key Laboratory of Advanced Technology for Materials Synthesis and Processing, Wuhan University of Technology , Wuhan 430070, China.State Key Laboratory of Advanced Technology for Materials Synthesis and Processing, Wuhan University of Technology , Wuhan 430070, China.Department of Mechanical & Industrial Engineering, Louisiana State University , Baton Rouge, Louisiana 70803, United States.Department of Chemical Engineering, Louisiana State University , Baton Rouge, Louisiana 70803, United States.Department of Mechanical & Industrial Engineering, Louisiana State University , Baton Rouge, Louisiana 70803, United States.

Pub Type(s)

Journal Article
Research Support, Non-U.S. Gov't

Language

eng

PubMed ID

26389757

Citation

Xu, Wangwang, et al. "Hierarchical Graphene-Encapsulated Hollow SnO2@SnS2 Nanostructures With Enhanced Lithium Storage Capability." ACS Applied Materials & Interfaces, vol. 7, no. 40, 2015, pp. 22533-41.
Xu W, Xie Z, Cui X, et al. Hierarchical Graphene-Encapsulated Hollow SnO2@SnS2 Nanostructures with Enhanced Lithium Storage Capability. ACS Appl Mater Interfaces. 2015;7(40):22533-41.
Xu, W., Xie, Z., Cui, X., Zhao, K., Zhang, L., Dietrich, G., Dooley, K. M., & Wang, Y. (2015). Hierarchical Graphene-Encapsulated Hollow SnO2@SnS2 Nanostructures with Enhanced Lithium Storage Capability. ACS Applied Materials & Interfaces, 7(40), 22533-41. https://doi.org/10.1021/acsami.5b06765
Xu W, et al. Hierarchical Graphene-Encapsulated Hollow SnO2@SnS2 Nanostructures With Enhanced Lithium Storage Capability. ACS Appl Mater Interfaces. 2015 Oct 14;7(40):22533-41. PubMed PMID: 26389757.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Hierarchical Graphene-Encapsulated Hollow SnO2@SnS2 Nanostructures with Enhanced Lithium Storage Capability. AU - Xu,Wangwang, AU - Xie,Zhiqiang, AU - Cui,Xiaodan, AU - Zhao,Kangning, AU - Zhang,Lei, AU - Dietrich,Grant, AU - Dooley,Kerry M, AU - Wang,Ying, Y1 - 2015/09/30/ PY - 2015/9/22/entrez PY - 2015/9/22/pubmed PY - 2015/9/22/medline KW - anode KW - graphene KW - hierarchical nanostructure KW - lithium ion battery KW - tin dioxide KW - tin disulfide SP - 22533 EP - 41 JF - ACS applied materials & interfaces JO - ACS Appl Mater Interfaces VL - 7 IS - 40 N2 - Complex hierarchical structures have received tremendous attention due to their superior properties over their constitute components. In this study, hierarchical graphene-encapsulated hollow SnO2@SnS2 nanostructures are successfully prepared by in situ sulfuration on the backbones of hollow SnO2 spheres via a simple hydrothermal method followed by a solvothermal surface modification. The as-prepared hierarchical SnO2@SnS2@rGO nanocomposite can be used as anode material in lithium ion batteries, exhibiting excellent cyclability with a capacity of 583 mAh/g after 100 electrochemical cycles at a specific current of 200 mA/g. This material shows a very low capacity fading of only 0.273% per cycle from the second to the 100th cycle, lower than the capacity degradation of bare SnO2 hollow spheres (0.830%) and single SnS2 nanosheets (0.393%). Even after being cycled at a range of specific currents varied from 100 mA/g to 2000 mA/g, hierarchical SnO2@SnS2@rGO nanocomposites maintain a reversible capacity of 664 mAh/g, which is much higher than single SnS2 nanosheets (374 mAh/g) and bare SnO2 hollow spheres (177 mAh/g). Such significantly improved electrochemical performance can be attributed to the unique hierarchical hollow structure, which not only effectively alleviates the stress resulting from the lithiation/delithiation process and maintaining structural stability during cycling but also reduces aggregation and facilitates ion transport. This work thus demonstrates the great potential of hierarchical SnO2@SnS2@rGO nanocomposites for applications as a high-performance anode material in next-generation lithium ion battery technology. SN - 1944-8252 UR - https://www.unboundmedicine.com/medline/citation/26389757/Hierarchical_Graphene_Encapsulated_Hollow_SnO2@SnS2_Nanostructures_with_Enhanced_Lithium_Storage_Capability_ L2 - https://dx.doi.org/10.1021/acsami.5b06765 DB - PRIME DP - Unbound Medicine ER -
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