In situ growth of Si nanowires on graphene sheets for Li-ion storage

Ziyang Lu; Jixin Zhu; Daohao Sim; Wenhui Shi; Yee Yan Tay; Jan Ma; Huey Hoon Hng; Qingyu Yan

doi:10.1016/j.electacta.2012.04.046

In situ growth of Si nanowires on graphene sheets for Li-ion storage

Ziyang Lu, Jixin Zhu, Daohao Sim, Wenhui Shi, Yee Yan Tay, Jan Ma, Huey Hoon Hng, Qingyu Yan^*

^*Corresponding author for this work

Research output: Contribution to journal › Article › peer-review

37 Citations (Scopus)

Abstract

Si nanowires in graphene papers were successfully prepared by supercritical fluid-liquid-solid (SFLS) process, which showed high specific capacities and charge-discharge cycling stability as anode materials for Li-ion storage. The enhancement on capacity and cycling stability of the Si/graphene composite nanostructures was attributed to the presence of graphene papers in the hybrid samples that served as a highly conductive framework and absorption of volume changes of Si nanowires during the lithiation/delithiation process. This Si/graphene electrodes maintained reversible capacities of 1400 mAh g ^-1 for the 30th cycle at a current density of 420 mA g ^-1, which is much better as compared to that of pure Si nanowires.

Original language	English
Pages (from-to)	176-181
Number of pages	6
Journal	Electrochimica Acta
Volume	74
DOIs	https://doi.org/10.1016/j.electacta.2012.04.046
Publication status	Published - Jul 15 2012
Externally published	Yes

ASJC Scopus Subject Areas

General Chemical Engineering
Electrochemistry

Keywords

Graphene oxides
Li ion battery
Si nanocrystals

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10.1016/j.electacta.2012.04.046

Cite this

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title = "In situ growth of Si nanowires on graphene sheets for Li-ion storage",

abstract = "Si nanowires in graphene papers were successfully prepared by supercritical fluid-liquid-solid (SFLS) process, which showed high specific capacities and charge-discharge cycling stability as anode materials for Li-ion storage. The enhancement on capacity and cycling stability of the Si/graphene composite nanostructures was attributed to the presence of graphene papers in the hybrid samples that served as a highly conductive framework and absorption of volume changes of Si nanowires during the lithiation/delithiation process. This Si/graphene electrodes maintained reversible capacities of 1400 mAh g -1 for the 30th cycle at a current density of 420 mA g -1, which is much better as compared to that of pure Si nanowires.",

keywords = "Graphene oxides, Li ion battery, Si nanocrystals",

author = "Ziyang Lu and Jixin Zhu and Daohao Sim and Wenhui Shi and Tay, \{Yee Yan\} and Jan Ma and Hng, \{Huey Hoon\} and Qingyu Yan",

year = "2012",

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doi = "10.1016/j.electacta.2012.04.046",

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journal = "Electrochimica Acta",

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TY - JOUR

T1 - In situ growth of Si nanowires on graphene sheets for Li-ion storage

AU - Lu, Ziyang

AU - Zhu, Jixin

AU - Sim, Daohao

AU - Shi, Wenhui

AU - Tay, Yee Yan

AU - Ma, Jan

AU - Hng, Huey Hoon

AU - Yan, Qingyu

PY - 2012/7/15

Y1 - 2012/7/15

N2 - Si nanowires in graphene papers were successfully prepared by supercritical fluid-liquid-solid (SFLS) process, which showed high specific capacities and charge-discharge cycling stability as anode materials for Li-ion storage. The enhancement on capacity and cycling stability of the Si/graphene composite nanostructures was attributed to the presence of graphene papers in the hybrid samples that served as a highly conductive framework and absorption of volume changes of Si nanowires during the lithiation/delithiation process. This Si/graphene electrodes maintained reversible capacities of 1400 mAh g -1 for the 30th cycle at a current density of 420 mA g -1, which is much better as compared to that of pure Si nanowires.

AB - Si nanowires in graphene papers were successfully prepared by supercritical fluid-liquid-solid (SFLS) process, which showed high specific capacities and charge-discharge cycling stability as anode materials for Li-ion storage. The enhancement on capacity and cycling stability of the Si/graphene composite nanostructures was attributed to the presence of graphene papers in the hybrid samples that served as a highly conductive framework and absorption of volume changes of Si nanowires during the lithiation/delithiation process. This Si/graphene electrodes maintained reversible capacities of 1400 mAh g -1 for the 30th cycle at a current density of 420 mA g -1, which is much better as compared to that of pure Si nanowires.

KW - Graphene oxides

KW - Li ion battery

KW - Si nanocrystals

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DO - 10.1016/j.electacta.2012.04.046

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SN - 0013-4686

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EP - 181

JO - Electrochimica Acta

JF - Electrochimica Acta

ER -

In situ growth of Si nanowires on graphene sheets for Li-ion storage

Abstract

ASJC Scopus Subject Areas

Keywords

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