Porous Ni                         3                         (NO                         3                         )                         2                         (OH)                         4                          nano-sheets for supercapacitors: Facile synthesis and excellent rate performance at high mass loadings

Mingjie Shi; Mangwei Cui; Litao Kang; Taotao Li; Shan Yun; Jing Du; Shoudong Xu; Ying Liu

doi:10.1016/j.apsusc.2017.09.012

Porous Ni ₃ (NO ₃ ) ₂ (OH) ₄ nano-sheets for supercapacitors: Facile synthesis and excellent rate performance at high mass loadings

Mingjie Shi
, Mangwei Cui
, Litao Kang^*
, Taotao Li
, Shan Yun
, Jing Du
, Shoudong Xu
, Ying Liu

^*Corresponding author for this work

Taiyuan University of Technology
Huaiyin Institute of Technology
Shenzhen Gas Corporation Ltd.

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

45 Scopus citations

Abstract

For supercapacitors, pores in electrode materials can accelerate chemical reaction kinetics by shortening ion diffusion distances and by enlarging electrolyte/electrode interfaces. This article describes a simple one-step route for the preparation of pure-phase porous Ni ₃ (NO ₃ ) ₂ (OH) ₄ nano-sheets by directly heating a mild Ni(NO ₃ ) ₂ and urea solution. During heating, urea decomposed into NH ₃ ·H ₂ O, which provided a suitable alkaline environment for the formation of Ni ₃ (NO ₃ ) ₂ (OH) ₄ nano-sheets. Meanwhile, the side product, NH ₄ NO ₃ , created numerous pores as a pore-forming agent. After NH ₄ NO ₃ removal, the specific surface areas and pore volumes of products were boosted by ∼180-times (from 0.61 to 113.12 m ² /g) and ∼90-times (from 3.40 × 10 ⁻³ to 3.17 × 10 ⁻¹ m ² /g), respectively. As a cathode material of supercapacitor, the porous Ni ₃ (NO ₃ ) ₂ (OH) ₄ nano-sheets exhibited a high specific capacitance of 1094 F/g at an ultrahigh mass loading of 17.55 mg/cm ² , leading to an impressive areal capacitance of 19.2 F/cm ² . Furthermore, a Ni ₃ (NO ₃ ) ₂ (OH) ₄ nano-sheet//commercial active carbon asymmetric supercapacitor was constructed and delivered an energy density of 33.2 Wh/Kg at a power density of 190.5 W/Kg, based on the mass of active materials on both electrodes.

Original language	English
Pages (from-to)	678-686
Number of pages	9
Journal	Applied Surface Science
Volume	427
DOIs	https://doi.org/10.1016/j.apsusc.2017.09.012
State	Published - 1 Jan 2018
Externally published	Yes

Keywords

Mass loading
Nanosheets
Nickel hydroxidenitrate
Rate capability
Supercapacitor

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10.1016/j.apsusc.2017.09.012

Cite this

Shi, M., Cui, M., Kang, L., Li, T., Yun, S., Du, J., Xu, S., & Liu, Y. (2018). Porous Ni ₃ (NO ₃ ) ₂ (OH) ₄ nano-sheets for supercapacitors: Facile synthesis and excellent rate performance at high mass loadings. Applied Surface Science, 427, 678-686. https://doi.org/10.1016/j.apsusc.2017.09.012

Shi, Mingjie ; Cui, Mangwei ; Kang, Litao et al. / Porous Ni ₃ (NO ₃ ) ₂ (OH) ₄ nano-sheets for supercapacitors : Facile synthesis and excellent rate performance at high mass loadings. In: Applied Surface Science. 2018 ; Vol. 427. pp. 678-686.

@article{03034493bf724345871b4a8a13e32673,

title = "Porous Ni 3 (NO 3 ) 2 (OH) 4 nano-sheets for supercapacitors: Facile synthesis and excellent rate performance at high mass loadings",

abstract = " For supercapacitors, pores in electrode materials can accelerate chemical reaction kinetics by shortening ion diffusion distances and by enlarging electrolyte/electrode interfaces. This article describes a simple one-step route for the preparation of pure-phase porous Ni 3 (NO 3 ) 2 (OH) 4 nano-sheets by directly heating a mild Ni(NO 3 ) 2 and urea solution. During heating, urea decomposed into NH 3 ·H 2 O, which provided a suitable alkaline environment for the formation of Ni 3 (NO 3 ) 2 (OH) 4 nano-sheets. Meanwhile, the side product, NH 4 NO 3 , created numerous pores as a pore-forming agent. After NH 4 NO 3 removal, the specific surface areas and pore volumes of products were boosted by ∼180-times (from 0.61 to 113.12 m 2 /g) and ∼90-times (from 3.40 × 10 −3 to 3.17 × 10 −1 m 2 /g), respectively. As a cathode material of supercapacitor, the porous Ni 3 (NO 3 ) 2 (OH) 4 nano-sheets exhibited a high specific capacitance of 1094 F/g at an ultrahigh mass loading of 17.55 mg/cm 2 , leading to an impressive areal capacitance of 19.2 F/cm 2 . Furthermore, a Ni 3 (NO 3 ) 2 (OH) 4 nano-sheet//commercial active carbon asymmetric supercapacitor was constructed and delivered an energy density of 33.2 Wh/Kg at a power density of 190.5 W/Kg, based on the mass of active materials on both electrodes.",

keywords = "Mass loading, Nanosheets, Nickel hydroxidenitrate, Rate capability, Supercapacitor",

author = "Mingjie Shi and Mangwei Cui and Litao Kang and Taotao Li and Shan Yun and Jing Du and Shoudong Xu and Ying Liu",

note = "Publisher Copyright: {\textcopyright} 2017",

year = "2018",

month = jan,

day = "1",

doi = "10.1016/j.apsusc.2017.09.012",

language = "英语",

volume = "427",

pages = "678--686",

journal = "Applied Surface Science",

issn = "0169-4332",

publisher = "Elsevier B.V.",

}

Shi, M, Cui, M, Kang, L, Li, T, Yun, S, Du, J, Xu, S & Liu, Y 2018, 'Porous Ni ₃ (NO ₃ ) ₂ (OH) ₄ nano-sheets for supercapacitors: Facile synthesis and excellent rate performance at high mass loadings', Applied Surface Science, vol. 427, pp. 678-686. https://doi.org/10.1016/j.apsusc.2017.09.012

Porous Ni ₃ (NO ₃ ) ₂ (OH) ₄ nano-sheets for supercapacitors: Facile synthesis and excellent rate performance at high mass loadings. / Shi, Mingjie; Cui, Mangwei; Kang, Litao et al.
In: Applied Surface Science, Vol. 427, 01.01.2018, p. 678-686.

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

TY - JOUR

T1 - Porous Ni 3 (NO 3 ) 2 (OH) 4 nano-sheets for supercapacitors

T2 - Facile synthesis and excellent rate performance at high mass loadings

AU - Shi, Mingjie

AU - Cui, Mangwei

AU - Kang, Litao

AU - Li, Taotao

AU - Yun, Shan

AU - Du, Jing

AU - Xu, Shoudong

AU - Liu, Ying

PY - 2018/1/1

Y1 - 2018/1/1

N2 - For supercapacitors, pores in electrode materials can accelerate chemical reaction kinetics by shortening ion diffusion distances and by enlarging electrolyte/electrode interfaces. This article describes a simple one-step route for the preparation of pure-phase porous Ni 3 (NO 3 ) 2 (OH) 4 nano-sheets by directly heating a mild Ni(NO 3 ) 2 and urea solution. During heating, urea decomposed into NH 3 ·H 2 O, which provided a suitable alkaline environment for the formation of Ni 3 (NO 3 ) 2 (OH) 4 nano-sheets. Meanwhile, the side product, NH 4 NO 3 , created numerous pores as a pore-forming agent. After NH 4 NO 3 removal, the specific surface areas and pore volumes of products were boosted by ∼180-times (from 0.61 to 113.12 m 2 /g) and ∼90-times (from 3.40 × 10 −3 to 3.17 × 10 −1 m 2 /g), respectively. As a cathode material of supercapacitor, the porous Ni 3 (NO 3 ) 2 (OH) 4 nano-sheets exhibited a high specific capacitance of 1094 F/g at an ultrahigh mass loading of 17.55 mg/cm 2 , leading to an impressive areal capacitance of 19.2 F/cm 2 . Furthermore, a Ni 3 (NO 3 ) 2 (OH) 4 nano-sheet//commercial active carbon asymmetric supercapacitor was constructed and delivered an energy density of 33.2 Wh/Kg at a power density of 190.5 W/Kg, based on the mass of active materials on both electrodes.

AB - For supercapacitors, pores in electrode materials can accelerate chemical reaction kinetics by shortening ion diffusion distances and by enlarging electrolyte/electrode interfaces. This article describes a simple one-step route for the preparation of pure-phase porous Ni 3 (NO 3 ) 2 (OH) 4 nano-sheets by directly heating a mild Ni(NO 3 ) 2 and urea solution. During heating, urea decomposed into NH 3 ·H 2 O, which provided a suitable alkaline environment for the formation of Ni 3 (NO 3 ) 2 (OH) 4 nano-sheets. Meanwhile, the side product, NH 4 NO 3 , created numerous pores as a pore-forming agent. After NH 4 NO 3 removal, the specific surface areas and pore volumes of products were boosted by ∼180-times (from 0.61 to 113.12 m 2 /g) and ∼90-times (from 3.40 × 10 −3 to 3.17 × 10 −1 m 2 /g), respectively. As a cathode material of supercapacitor, the porous Ni 3 (NO 3 ) 2 (OH) 4 nano-sheets exhibited a high specific capacitance of 1094 F/g at an ultrahigh mass loading of 17.55 mg/cm 2 , leading to an impressive areal capacitance of 19.2 F/cm 2 . Furthermore, a Ni 3 (NO 3 ) 2 (OH) 4 nano-sheet//commercial active carbon asymmetric supercapacitor was constructed and delivered an energy density of 33.2 Wh/Kg at a power density of 190.5 W/Kg, based on the mass of active materials on both electrodes.

KW - Mass loading

KW - Nanosheets

KW - Nickel hydroxidenitrate

KW - Rate capability

KW - Supercapacitor

UR - https://www.scopus.com/pages/publications/85029354331

U2 - 10.1016/j.apsusc.2017.09.012

DO - 10.1016/j.apsusc.2017.09.012

M3 - 文章

AN - SCOPUS:85029354331

SN - 0169-4332

VL - 427

SP - 678

EP - 686

JO - Applied Surface Science

JF - Applied Surface Science

ER -

Shi M, Cui M, Kang L, Li T, Yun S, Du J et al. Porous Ni ₃ (NO ₃ ) ₂ (OH) ₄ nano-sheets for supercapacitors: Facile synthesis and excellent rate performance at high mass loadings. Applied Surface Science. 2018 Jan 1;427:678-686. doi: 10.1016/j.apsusc.2017.09.012

Porous Ni ₃ (NO ₃ ) ₂ (OH) ₄ nano-sheets for supercapacitors: Facile synthesis and excellent rate performance at high mass loadings

Abstract

Keywords

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