Facile synthesis of mesoporous CuCo2O4 nanorods@MnO2 with core-shell structure grown on RGO for high-performance supercapacitor

Qian Li; Rui Hu; Jiqiu Qi; Yanwei Sui; Yezeng He; Qingkun Meng; Fuxiang Wei; Yaojian Ren; Yulong Zhao

doi:10.1016/j.matlet.2019.04.043

Facile synthesis of mesoporous CuCo₂O₄ nanorods@MnO₂ with core-shell structure grown on RGO for high-performance supercapacitor

Qian Li, Rui Hu, Jiqiu Qi, Yanwei Sui, Yezeng He, Qingkun Meng, Fuxiang Wei, Yaojian Ren, Yulong Zhao

School of Materials Sience and Engineering

China University of Mining and Technology

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

21 Scopus citations

Abstract

In this work, a novel hierarchical CuCo₂O₄@MnO₂ composite with core-shell structure grown on RGO (coated on the surface of nickel foam (NF)) was synthesized via a facile hydrothermal route, in which MnO₂ nanosheets uniformly wrapped around the surface of CuCo₂O₄ nanorods. RGO/CuCo₂O₄ composite was also prepared for comparison. Benefiting from their synergistic effect, RGO/CuCo₂O₄@MnO₂ electrode delivered high specific capacitance of 850 F g⁻¹ at 1 A g⁻¹ in 2.0 M KOH electrolyte and an outstanding cycling stability with 94.2% retention over 3000 cycles, suggesting the great potential application of this material in advanced energy storage device.

Original language	English
Pages (from-to)	151-154
Number of pages	4
Journal	Materials Letters
Volume	249
DOIs	https://doi.org/10.1016/j.matlet.2019.04.043
State	Published - 15 Aug 2019

Keywords

Core-shell structure
CuCoO
Electronic materials
Energy storage and conversion
RGO
Supercapacitor

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10.1016/j.matlet.2019.04.043

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title = "Facile synthesis of mesoporous CuCo2O4 nanorods@MnO2 with core-shell structure grown on RGO for high-performance supercapacitor",

abstract = "In this work, a novel hierarchical CuCo2O4@MnO2 composite with core-shell structure grown on RGO (coated on the surface of nickel foam (NF)) was synthesized via a facile hydrothermal route, in which MnO2 nanosheets uniformly wrapped around the surface of CuCo2O4 nanorods. RGO/CuCo2O4 composite was also prepared for comparison. Benefiting from their synergistic effect, RGO/CuCo2O4@MnO2 electrode delivered high specific capacitance of 850 F g−1 at 1 A g−1 in 2.0 M KOH electrolyte and an outstanding cycling stability with 94.2% retention over 3000 cycles, suggesting the great potential application of this material in advanced energy storage device.",

keywords = "Core-shell structure, CuCoO, Electronic materials, Energy storage and conversion, RGO, Supercapacitor",

author = "Qian Li and Rui Hu and Jiqiu Qi and Yanwei Sui and Yezeng He and Qingkun Meng and Fuxiang Wei and Yaojian Ren and Yulong Zhao",

note = "Publisher Copyright: {\textcopyright} 2019 Elsevier B.V.",

year = "2019",

month = aug,

day = "15",

doi = "10.1016/j.matlet.2019.04.043",

language = "英语",

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T1 - Facile synthesis of mesoporous CuCo2O4 nanorods@MnO2 with core-shell structure grown on RGO for high-performance supercapacitor

AU - Li, Qian

AU - Hu, Rui

AU - Qi, Jiqiu

AU - Sui, Yanwei

AU - He, Yezeng

AU - Meng, Qingkun

AU - Wei, Fuxiang

AU - Ren, Yaojian

AU - Zhao, Yulong

PY - 2019/8/15

Y1 - 2019/8/15

N2 - In this work, a novel hierarchical CuCo2O4@MnO2 composite with core-shell structure grown on RGO (coated on the surface of nickel foam (NF)) was synthesized via a facile hydrothermal route, in which MnO2 nanosheets uniformly wrapped around the surface of CuCo2O4 nanorods. RGO/CuCo2O4 composite was also prepared for comparison. Benefiting from their synergistic effect, RGO/CuCo2O4@MnO2 electrode delivered high specific capacitance of 850 F g−1 at 1 A g−1 in 2.0 M KOH electrolyte and an outstanding cycling stability with 94.2% retention over 3000 cycles, suggesting the great potential application of this material in advanced energy storage device.

AB - In this work, a novel hierarchical CuCo2O4@MnO2 composite with core-shell structure grown on RGO (coated on the surface of nickel foam (NF)) was synthesized via a facile hydrothermal route, in which MnO2 nanosheets uniformly wrapped around the surface of CuCo2O4 nanorods. RGO/CuCo2O4 composite was also prepared for comparison. Benefiting from their synergistic effect, RGO/CuCo2O4@MnO2 electrode delivered high specific capacitance of 850 F g−1 at 1 A g−1 in 2.0 M KOH electrolyte and an outstanding cycling stability with 94.2% retention over 3000 cycles, suggesting the great potential application of this material in advanced energy storage device.

KW - Core-shell structure

KW - CuCoO

KW - Electronic materials

KW - Energy storage and conversion

KW - RGO

KW - Supercapacitor

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U2 - 10.1016/j.matlet.2019.04.043

DO - 10.1016/j.matlet.2019.04.043

M3 - 文章

AN - SCOPUS:85064552549

SN - 0167-577X

VL - 249

SP - 151

EP - 154

JO - Materials Letters

JF - Materials Letters

ER -

Facile synthesis of mesoporous CuCo₂O₄ nanorods@MnO₂ with core-shell structure grown on RGO for high-performance supercapacitor

Abstract

Keywords

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