Smoothing the Surface and Improving the Electrochemical Properties of Na<i><sub>x</sub></i>MnO<sub>2</sub> by a Wet Chemical Method

Na<i><sub>x</sub></i>MnO<sub>2</sub> (NMO) is treated by a wet chemical method in this paper. The treated NMO can form a copper oxide coating layer, and some of the coating layer can be peeled off, smoothing the surface of particles. Electrochemical measurement sh...

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Main Authors: Siliang Zhao, Zhiping Lin, Fugen Wu, Feng Xiao, Jiantie Xu
Format: Article
Language:English
Published: MDPI AG 2020-01-01
Series:Nanomaterials
Subjects:
Online Access:https://www.mdpi.com/2079-4991/10/2/246
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author Siliang Zhao
Zhiping Lin
Fugen Wu
Feng Xiao
Jiantie Xu
author_facet Siliang Zhao
Zhiping Lin
Fugen Wu
Feng Xiao
Jiantie Xu
author_sort Siliang Zhao
collection DOAJ
description Na<i><sub>x</sub></i>MnO<sub>2</sub> (NMO) is treated by a wet chemical method in this paper. The treated NMO can form a copper oxide coating layer, and some of the coating layer can be peeled off, smoothing the surface of particles. Electrochemical measurement shows that treated NMO can maintain 72.6% of its specific capacity after 300 cycles, which is better than the 58.7% specific capacity of untreated NMO materials. Additionally, the ratio of capacity remaining rate can be improved from an initial 87% to 99.5%. So, this wet chemical method is available to smooth the electrode surface and reduce the internal impedance, and thus to effectively improve electrochemical performance during the battery cycle.
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spelling doaj.art-7bcfc67711e842b6bbd9d19c47197d9f2022-12-22T00:13:40ZengMDPI AGNanomaterials2079-49912020-01-0110224610.3390/nano10020246nano10020246Smoothing the Surface and Improving the Electrochemical Properties of Na<i><sub>x</sub></i>MnO<sub>2</sub> by a Wet Chemical MethodSiliang Zhao0Zhiping Lin1Fugen Wu2Feng Xiao3Jiantie Xu4School of materials and energy, Guangdong University of Technology, Guangzhou 510006, ChinaSchool of Physics and optoelectronic engineering, Guangdong University of Technology, Guangzhou 510006, ChinaSchool of materials and energy, Guangdong University of Technology, Guangzhou 510006, ChinaGuangdong Provincial Key Laboratory of Atmospheric Environment and Pollution Control, School of Environment and Energy, South China University of Technology, Guangzhou 510640, ChinaGuangdong Provincial Key Laboratory of Atmospheric Environment and Pollution Control, School of Environment and Energy, South China University of Technology, Guangzhou 510640, ChinaNa<i><sub>x</sub></i>MnO<sub>2</sub> (NMO) is treated by a wet chemical method in this paper. The treated NMO can form a copper oxide coating layer, and some of the coating layer can be peeled off, smoothing the surface of particles. Electrochemical measurement shows that treated NMO can maintain 72.6% of its specific capacity after 300 cycles, which is better than the 58.7% specific capacity of untreated NMO materials. Additionally, the ratio of capacity remaining rate can be improved from an initial 87% to 99.5%. So, this wet chemical method is available to smooth the electrode surface and reduce the internal impedance, and thus to effectively improve electrochemical performance during the battery cycle.https://www.mdpi.com/2079-4991/10/2/246na<i><sub>x</sub></i>mno<sub>2</sub> (nmo)wet chemical methodsurfaceelectrochemical properties
spellingShingle Siliang Zhao
Zhiping Lin
Fugen Wu
Feng Xiao
Jiantie Xu
Smoothing the Surface and Improving the Electrochemical Properties of Na<i><sub>x</sub></i>MnO<sub>2</sub> by a Wet Chemical Method
Nanomaterials
na<i><sub>x</sub></i>mno<sub>2</sub> (nmo)
wet chemical method
surface
electrochemical properties
title Smoothing the Surface and Improving the Electrochemical Properties of Na<i><sub>x</sub></i>MnO<sub>2</sub> by a Wet Chemical Method
title_full Smoothing the Surface and Improving the Electrochemical Properties of Na<i><sub>x</sub></i>MnO<sub>2</sub> by a Wet Chemical Method
title_fullStr Smoothing the Surface and Improving the Electrochemical Properties of Na<i><sub>x</sub></i>MnO<sub>2</sub> by a Wet Chemical Method
title_full_unstemmed Smoothing the Surface and Improving the Electrochemical Properties of Na<i><sub>x</sub></i>MnO<sub>2</sub> by a Wet Chemical Method
title_short Smoothing the Surface and Improving the Electrochemical Properties of Na<i><sub>x</sub></i>MnO<sub>2</sub> by a Wet Chemical Method
title_sort smoothing the surface and improving the electrochemical properties of na i sub x sub i mno sub 2 sub by a wet chemical method
topic na<i><sub>x</sub></i>mno<sub>2</sub> (nmo)
wet chemical method
surface
electrochemical properties
url https://www.mdpi.com/2079-4991/10/2/246
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AT fugenwu smoothingthesurfaceandimprovingtheelectrochemicalpropertiesofnaisubxsubimnosub2subbyawetchemicalmethod
AT fengxiao smoothingthesurfaceandimprovingtheelectrochemicalpropertiesofnaisubxsubimnosub2subbyawetchemicalmethod
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