Synthetic Strategy for MnO2 Nanoparticle/Carbon Aerogel Heterostructures for Improved Supercapacitor Performance

Xiaochan Liu; Xibin Yi; Jing Zhang; Xinfu Zhao; Sijia Liu; Tingwei Wang; Sheng Cui

doi:10.1021/acsanm.3c01996

Synthetic Strategy for MnO₂ Nanoparticle/Carbon Aerogel Heterostructures for Improved Supercapacitor Performance

Xiaochan Liu, Xibin Yi, Jing Zhang, Xinfu Zhao, Sijia Liu, Tingwei Wang, Sheng Cui

College of Materials Science and Engineering

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

13 Scopus citations

Abstract

Constructing heterostructure in nanomaterials is a scientific and efficient method to optimize the electrochemical properties of supercapacitors. Carbon aerogels (CAs) can enhance electrical conductivity and ion diffusion because of their three-dimensional porous structure, which is useful for fabricating electrodes. The moderate nanoheterostructures in aerogel nanomaterials have made great contributions to the optimization of application performance. Herein, a simple method for constructing the MnO₂ nanoparticle/CA (MnO₂/CA) heterostructure is proposed. The MnO₂/CA heterostructure exhibits outstanding electrochemical capability in a three-electrode system, with a specific capacitance of 384 F/g, higher than 201 F/g of the CA, at a current density of 0.5 A/g. When MnO₂/CA is used as a symmetric supercapacitor, it also exhibits a high energy density and power density, with the highest energy density of 33.78 Wh/kg. The prepared MnO₂/CA shows improved performance for synergies in providing a high specific capacity and long cycle life.

Original language	English
Pages (from-to)	14127-14135
Number of pages	9
Journal	ACS Applied Nano Materials
Volume	6
Issue number	15
DOIs	https://doi.org/10.1021/acsanm.3c01996
State	Published - 11 Aug 2023

Keywords

Carbon aerogels
Electrochemical capability
Heterostructure
Manganese oxides
Supercapacitor

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10.1021/acsanm.3c01996

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title = "Synthetic Strategy for MnO2 Nanoparticle/Carbon Aerogel Heterostructures for Improved Supercapacitor Performance",

abstract = "Constructing heterostructure in nanomaterials is a scientific and efficient method to optimize the electrochemical properties of supercapacitors. Carbon aerogels (CAs) can enhance electrical conductivity and ion diffusion because of their three-dimensional porous structure, which is useful for fabricating electrodes. The moderate nanoheterostructures in aerogel nanomaterials have made great contributions to the optimization of application performance. Herein, a simple method for constructing the MnO2 nanoparticle/CA (MnO2/CA) heterostructure is proposed. The MnO2/CA heterostructure exhibits outstanding electrochemical capability in a three-electrode system, with a specific capacitance of 384 F/g, higher than 201 F/g of the CA, at a current density of 0.5 A/g. When MnO2/CA is used as a symmetric supercapacitor, it also exhibits a high energy density and power density, with the highest energy density of 33.78 Wh/kg. The prepared MnO2/CA shows improved performance for synergies in providing a high specific capacity and long cycle life.",

keywords = "Carbon aerogels, Electrochemical capability, Heterostructure, Manganese oxides, Supercapacitor",

author = "Xiaochan Liu and Xibin Yi and Jing Zhang and Xinfu Zhao and Sijia Liu and Tingwei Wang and Sheng Cui",

note = "Publisher Copyright: {\textcopyright} 2023 American Chemical Society.",

year = "2023",

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doi = "10.1021/acsanm.3c01996",

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T1 - Synthetic Strategy for MnO2 Nanoparticle/Carbon Aerogel Heterostructures for Improved Supercapacitor Performance

AU - Liu, Xiaochan

AU - Yi, Xibin

AU - Zhang, Jing

AU - Zhao, Xinfu

AU - Liu, Sijia

AU - Wang, Tingwei

AU - Cui, Sheng

PY - 2023/8/11

Y1 - 2023/8/11

N2 - Constructing heterostructure in nanomaterials is a scientific and efficient method to optimize the electrochemical properties of supercapacitors. Carbon aerogels (CAs) can enhance electrical conductivity and ion diffusion because of their three-dimensional porous structure, which is useful for fabricating electrodes. The moderate nanoheterostructures in aerogel nanomaterials have made great contributions to the optimization of application performance. Herein, a simple method for constructing the MnO2 nanoparticle/CA (MnO2/CA) heterostructure is proposed. The MnO2/CA heterostructure exhibits outstanding electrochemical capability in a three-electrode system, with a specific capacitance of 384 F/g, higher than 201 F/g of the CA, at a current density of 0.5 A/g. When MnO2/CA is used as a symmetric supercapacitor, it also exhibits a high energy density and power density, with the highest energy density of 33.78 Wh/kg. The prepared MnO2/CA shows improved performance for synergies in providing a high specific capacity and long cycle life.

AB - Constructing heterostructure in nanomaterials is a scientific and efficient method to optimize the electrochemical properties of supercapacitors. Carbon aerogels (CAs) can enhance electrical conductivity and ion diffusion because of their three-dimensional porous structure, which is useful for fabricating electrodes. The moderate nanoheterostructures in aerogel nanomaterials have made great contributions to the optimization of application performance. Herein, a simple method for constructing the MnO2 nanoparticle/CA (MnO2/CA) heterostructure is proposed. The MnO2/CA heterostructure exhibits outstanding electrochemical capability in a three-electrode system, with a specific capacitance of 384 F/g, higher than 201 F/g of the CA, at a current density of 0.5 A/g. When MnO2/CA is used as a symmetric supercapacitor, it also exhibits a high energy density and power density, with the highest energy density of 33.78 Wh/kg. The prepared MnO2/CA shows improved performance for synergies in providing a high specific capacity and long cycle life.

KW - Carbon aerogels

KW - Electrochemical capability

KW - Heterostructure

KW - Manganese oxides

KW - Supercapacitor

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U2 - 10.1021/acsanm.3c01996

DO - 10.1021/acsanm.3c01996

M3 - 文章

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SN - 2574-0970

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JO - ACS Applied Nano Materials

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ER -

Synthetic Strategy for MnO₂ Nanoparticle/Carbon Aerogel Heterostructures for Improved Supercapacitor Performance

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Keywords

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