Interfacial Synthesis of δ-MnO2 Nano-sheets with a Large Surface Area and Their Application in Electrochemical Capacitors

Zhijun Jia; Jun Wang; Yi Wang; Bingyang Li; Baoguo Wang; Tao Qi; Xin Wang

doi:10.1016/j.jmst.2015.08.003

Interfacial Synthesis of δ-MnO₂ Nano-sheets with a Large Surface Area and Their Application in Electrochemical Capacitors

Zhijun Jia
, Jun Wang
, Yi Wang^*
, Bingyang Li
, Baoguo Wang
, Tao Qi
, Xin Wang

^*Corresponding author for this work

Research output: Journal Publications and Reviews › RGC 21 - Publication in refereed journal › peer-review

45 Citations (Scopus)

Abstract

Birnessite-type MnO₂ (δ-MnO₂) nano-sheets were successfully synthesized by an interfacial synthesis method in this work. The properties and electrochemical performance of the as-prepared δ-MnO₂ were analyzed and evaluated by scanning electron microscopy (SEM), X-ray diffraction (XRD), nitrogen adsorption measurement and electrochemical tests. This facile synthesis method enables δ-MnO₂ nano-sheets to show a large specific surface area (257.5 m² g^-1). The electrochemical test results show that the specific capacitance is 272 F g^-1 and the specific capacitance retention is over 96.7% after 1000 cycles at a scan rate of 10 mV s^-1. All results demonstrate that δ-MnO₂ has a great potential application in high-performance electrochemical capacitors, and this interfacial synthesis method will be a very promising method to synthesize highly active MnO₂ materials in a large scale. © 2015.

Original language	English
Pages (from-to)	147-152
Journal	Journal of Materials Science and Technology
Volume	32
Issue number	2
DOIs	https://doi.org/10.1016/j.jmst.2015.08.003
Publication status	Published - 1 Feb 2016
Externally published	Yes

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Publication details (e.g. title, author(s), publication statuses and dates) are captured on an “AS IS” and “AS AVAILABLE” basis at the time of record harvesting from the data source. Suggestions for further amendments or supplementary information can be sent to [email protected].

Research Keywords

Chemical synthesis
Electrochemical properties
Electron microscopy
Nanostructures
Oxides

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Cite this

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title = "Interfacial Synthesis of δ-MnO2 Nano-sheets with a Large Surface Area and Their Application in Electrochemical Capacitors",

abstract = "Birnessite-type MnO2 (δ-MnO2) nano-sheets were successfully synthesized by an interfacial synthesis method in this work. The properties and electrochemical performance of the as-prepared δ-MnO2 were analyzed and evaluated by scanning electron microscopy (SEM), X-ray diffraction (XRD), nitrogen adsorption measurement and electrochemical tests. This facile synthesis method enables δ-MnO2 nano-sheets to show a large specific surface area (257.5 m2 g-1). The electrochemical test results show that the specific capacitance is 272 F g-1 and the specific capacitance retention is over 96.7\% after 1000 cycles at a scan rate of 10 mV s-1. All results demonstrate that δ-MnO2 has a great potential application in high-performance electrochemical capacitors, and this interfacial synthesis method will be a very promising method to synthesize highly active MnO2 materials in a large scale. {\textcopyright} 2015.",

keywords = "Chemical synthesis, Electrochemical properties, Electron microscopy, Nanostructures, Oxides",

author = "Zhijun Jia and Jun Wang and Yi Wang and Bingyang Li and Baoguo Wang and Tao Qi and Xin Wang",

note = "Publication details (e.g. title, author(s), publication statuses and dates) are captured on an “AS IS” and “AS AVAILABLE” basis at the time of record harvesting from the data source. Suggestions for further amendments or supplementary information can be sent to [email protected]. ",

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doi = "10.1016/j.jmst.2015.08.003",

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TY - JOUR

T1 - Interfacial Synthesis of δ-MnO2 Nano-sheets with a Large Surface Area and Their Application in Electrochemical Capacitors

AU - Jia, Zhijun

AU - Wang, Jun

AU - Wang, Yi

AU - Li, Bingyang

AU - Wang, Baoguo

AU - Qi, Tao

AU - Wang, Xin

N1 - Publication details (e.g. title, author(s), publication statuses and dates) are captured on an “AS IS” and “AS AVAILABLE” basis at the time of record harvesting from the data source. Suggestions for further amendments or supplementary information can be sent to [email protected].

PY - 2016/2/1

Y1 - 2016/2/1

N2 - Birnessite-type MnO2 (δ-MnO2) nano-sheets were successfully synthesized by an interfacial synthesis method in this work. The properties and electrochemical performance of the as-prepared δ-MnO2 were analyzed and evaluated by scanning electron microscopy (SEM), X-ray diffraction (XRD), nitrogen adsorption measurement and electrochemical tests. This facile synthesis method enables δ-MnO2 nano-sheets to show a large specific surface area (257.5 m2 g-1). The electrochemical test results show that the specific capacitance is 272 F g-1 and the specific capacitance retention is over 96.7% after 1000 cycles at a scan rate of 10 mV s-1. All results demonstrate that δ-MnO2 has a great potential application in high-performance electrochemical capacitors, and this interfacial synthesis method will be a very promising method to synthesize highly active MnO2 materials in a large scale. © 2015.

AB - Birnessite-type MnO2 (δ-MnO2) nano-sheets were successfully synthesized by an interfacial synthesis method in this work. The properties and electrochemical performance of the as-prepared δ-MnO2 were analyzed and evaluated by scanning electron microscopy (SEM), X-ray diffraction (XRD), nitrogen adsorption measurement and electrochemical tests. This facile synthesis method enables δ-MnO2 nano-sheets to show a large specific surface area (257.5 m2 g-1). The electrochemical test results show that the specific capacitance is 272 F g-1 and the specific capacitance retention is over 96.7% after 1000 cycles at a scan rate of 10 mV s-1. All results demonstrate that δ-MnO2 has a great potential application in high-performance electrochemical capacitors, and this interfacial synthesis method will be a very promising method to synthesize highly active MnO2 materials in a large scale. © 2015.

KW - Chemical synthesis

KW - Electrochemical properties

KW - Electron microscopy

KW - Nanostructures

KW - Oxides

UR - https://www.scopus.com/pages/publications/84958055400

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U2 - 10.1016/j.jmst.2015.08.003

DO - 10.1016/j.jmst.2015.08.003

M3 - RGC 21 - Publication in refereed journal

SN - 1005-0302

VL - 32

SP - 147

EP - 152

JO - Journal of Materials Science and Technology

JF - Journal of Materials Science and Technology

IS - 2

ER -