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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MDPI AG
2020-01-01
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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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institution | Directory Open Access Journal |
issn | 2079-4991 |
language | English |
last_indexed | 2024-12-12T20:03:52Z |
publishDate | 2020-01-01 |
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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 |
work_keys_str_mv | AT siliangzhao smoothingthesurfaceandimprovingtheelectrochemicalpropertiesofnaisubxsubimnosub2subbyawetchemicalmethod AT zhipinglin smoothingthesurfaceandimprovingtheelectrochemicalpropertiesofnaisubxsubimnosub2subbyawetchemicalmethod AT fugenwu smoothingthesurfaceandimprovingtheelectrochemicalpropertiesofnaisubxsubimnosub2subbyawetchemicalmethod AT fengxiao smoothingthesurfaceandimprovingtheelectrochemicalpropertiesofnaisubxsubimnosub2subbyawetchemicalmethod AT jiantiexu smoothingthesurfaceandimprovingtheelectrochemicalpropertiesofnaisubxsubimnosub2subbyawetchemicalmethod |