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Building 3D structures of vanadium pentoxide nanosheets and application as electrodes in supercapacitors

Research output: Contribution to Journal/Magazine › Journal article › peer-review

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Building 3D structures of vanadium pentoxide nanosheets and application as electrodes in supercapacitors. / Zhu, Jixin; Cao, Liujun; Wu, Yingsi et al.
In: Nano Letters, Vol. 13, No. 11, 11.2013, p. 5408-5413.

Research output: Contribution to Journal/Magazine › Journal article › peer-review

Harvard

Zhu, J, Cao, L, Wu, Y, Gong, Y, Liu, Z, Hoster, HE, Zhang, Y, Zhang, S, Yang, S, Yan, Q, Ajayan, PM & Vajtai, R 2013, 'Building 3D structures of vanadium pentoxide nanosheets and application as electrodes in supercapacitors', Nano Letters, vol. 13, no. 11, pp. 5408-5413. https://doi.org/10.1021/nl402969r

APA

Zhu, J., Cao, L., Wu, Y., Gong, Y., Liu, Z., Hoster, H. E., Zhang, Y., Zhang, S., Yang, S., Yan, Q., Ajayan, P. M., & Vajtai, R. (2013). Building 3D structures of vanadium pentoxide nanosheets and application as electrodes in supercapacitors. Nano Letters, 13(11), 5408-5413. https://doi.org/10.1021/nl402969r

Vancouver

Zhu J, Cao L, Wu Y, Gong Y, Liu Z, Hoster HE et al. Building 3D structures of vanadium pentoxide nanosheets and application as electrodes in supercapacitors. Nano Letters. 2013 Nov;13(11):5408-5413. doi: 10.1021/nl402969r

Author

Zhu, Jixin ; Cao, Liujun ; Wu, Yingsi et al. / Building 3D structures of vanadium pentoxide nanosheets and application as electrodes in supercapacitors. In: Nano Letters. 2013 ; Vol. 13, No. 11. pp. 5408-5413.

Bibtex

@article{151a36ad95194373b64aa8423358c1e4,
title = "Building 3D structures of vanadium pentoxide nanosheets and application as electrodes in supercapacitors",
abstract = "Various two-dimensional (2D) materials have recently attracted great attention owing to their unique properties and wide application potential in electronics, catalysis, energy storage, and conversion. However, large-scale production of ultrathin sheets and functional nanosheets remains a scientific and engineering challenge. Here we demonstrate an efficient approach for large-scale production of V2O5 nanosheets having a thickness of 4 nm and utilization as building blocks for constructing 3D architectures via a freeze-drying process. The resulting highly flexible V2O5 structures possess a surface area of 133 m(2) g(-1), ultrathin walls, and multilevel pores. Such unique features are favorable for providing easy access of the electrolyte to the structure when they are used as a supercapacitor electrode, and they also provide a large electroactive surface that advantageous in energy storage applications. As a consequence, a high specific capacitance of 451 F g(-1) is achieved in a neutral aqueous Na2SO4 electrolyte as the 3D architectures are utilized for energy storage. Remarkably, the capacitance retention after 4000 cycles is more than 90%, and the energy density is up to 107 W.h.kg(-1) at a high power density of 9.4 kW kg(-1).",
keywords = "2D layers, V2O5, 3D architectures, high energy density, supercapacitor, HIGH-PERFORMANCE SUPERCAPACITORS, ENERGY-STORAGE, LITHIUM STORAGE, ANODE MATERIAL, HIGH-POWER, GRAPHENE, BATTERIES, NETWORKS, FILMS",
author = "Jixin Zhu and Liujun Cao and Yingsi Wu and Yongji Gong and Zheng Liu and Hoster, {Harry E.} and Yunhuai Zhang and Shengtao Zhang and Shubin Yang and Qingyu Yan and Ajayan, {Pulickel M.} and Robert Vajtai",
year = "2013",
month = nov,
doi = "10.1021/nl402969r",
language = "English",
volume = "13",
pages = "5408--5413",
journal = "Nano Letters",
issn = "1530-6984",
publisher = "American Chemical Society",
number = "11",

}

RIS

TY - JOUR

T1 - Building 3D structures of vanadium pentoxide nanosheets and application as electrodes in supercapacitors

AU - Zhu, Jixin

AU - Cao, Liujun

AU - Wu, Yingsi

AU - Gong, Yongji

AU - Liu, Zheng

AU - Hoster, Harry E.

AU - Zhang, Yunhuai

AU - Zhang, Shengtao

AU - Yang, Shubin

AU - Yan, Qingyu

AU - Ajayan, Pulickel M.

AU - Vajtai, Robert

PY - 2013/11

Y1 - 2013/11

N2 - Various two-dimensional (2D) materials have recently attracted great attention owing to their unique properties and wide application potential in electronics, catalysis, energy storage, and conversion. However, large-scale production of ultrathin sheets and functional nanosheets remains a scientific and engineering challenge. Here we demonstrate an efficient approach for large-scale production of V2O5 nanosheets having a thickness of 4 nm and utilization as building blocks for constructing 3D architectures via a freeze-drying process. The resulting highly flexible V2O5 structures possess a surface area of 133 m(2) g(-1), ultrathin walls, and multilevel pores. Such unique features are favorable for providing easy access of the electrolyte to the structure when they are used as a supercapacitor electrode, and they also provide a large electroactive surface that advantageous in energy storage applications. As a consequence, a high specific capacitance of 451 F g(-1) is achieved in a neutral aqueous Na2SO4 electrolyte as the 3D architectures are utilized for energy storage. Remarkably, the capacitance retention after 4000 cycles is more than 90%, and the energy density is up to 107 W.h.kg(-1) at a high power density of 9.4 kW kg(-1).

AB - Various two-dimensional (2D) materials have recently attracted great attention owing to their unique properties and wide application potential in electronics, catalysis, energy storage, and conversion. However, large-scale production of ultrathin sheets and functional nanosheets remains a scientific and engineering challenge. Here we demonstrate an efficient approach for large-scale production of V2O5 nanosheets having a thickness of 4 nm and utilization as building blocks for constructing 3D architectures via a freeze-drying process. The resulting highly flexible V2O5 structures possess a surface area of 133 m(2) g(-1), ultrathin walls, and multilevel pores. Such unique features are favorable for providing easy access of the electrolyte to the structure when they are used as a supercapacitor electrode, and they also provide a large electroactive surface that advantageous in energy storage applications. As a consequence, a high specific capacitance of 451 F g(-1) is achieved in a neutral aqueous Na2SO4 electrolyte as the 3D architectures are utilized for energy storage. Remarkably, the capacitance retention after 4000 cycles is more than 90%, and the energy density is up to 107 W.h.kg(-1) at a high power density of 9.4 kW kg(-1).

KW - 2D layers

KW - V2O5

KW - 3D architectures

KW - high energy density

KW - supercapacitor

KW - HIGH-PERFORMANCE SUPERCAPACITORS

KW - ENERGY-STORAGE

KW - LITHIUM STORAGE

KW - ANODE MATERIAL

KW - HIGH-POWER

KW - GRAPHENE

KW - BATTERIES

KW - NETWORKS

KW - FILMS

U2 - 10.1021/nl402969r

DO - 10.1021/nl402969r

M3 - Journal article

C2 - 24148090

VL - 13

SP - 5408

EP - 5413

JO - Nano Letters

JF - Nano Letters

SN - 1530-6984

IS - 11

ER -