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In situ synthesis and electrochemical performance of MoO3−x nanobelts as anode materials for lithium-ion batteries.
- Source :
- Dalton Transactions: An International Journal of Inorganic Chemistry; 9/7/2019, Vol. 21 Issue 17, p12832-12838, 7p
- Publication Year :
- 2019
-
Abstract
- MoO<subscript>3−x</subscript> nanobelts with different concentrations of oxygen vacancies were synthesized by a one-step hydrothermal process. XPS test results show that oxygen vacancies are distributed from the exterior to the interior of the MoO<subscript>3−x</subscript> nanobelts. As an anode material for lithium-ion batteries, MoO<subscript>3−x</subscript>-10 releases excellent rate capacitance. It can maintain a high specific capacitance of about 500 mA h·g<superscript>−1</superscript> at a high current density of 1000 mA·g<superscript>−1</superscript>. In the aspect of cycling stability, MoO<subscript>3−x</subscript>-10 can retain a high specific capacity of 641 mA h·g<superscript>−1</superscript> after cycling for 50 times at 100 mA·g<superscript>−1</superscript> and 420 mA h·g<superscript>−1</superscript> after cycling for 100 times at 500 mA·g<superscript>−1</superscript>. The coexistence of oxygen vacancies and low-valence Mo ions is conducive to the intercalation/de-intercalation of Li ions and to promoting redox reactions. It has been proved to be a significantly effective way in which oxygen vacancies can improve the integrated performance of MoO<subscript>3−x</subscript> nanobelts as anode materials. [ABSTRACT FROM AUTHOR]
Details
- Language :
- English
- ISSN :
- 14779226
- Volume :
- 21
- Issue :
- 17
- Database :
- Complementary Index
- Journal :
- Dalton Transactions: An International Journal of Inorganic Chemistry
- Publication Type :
- Academic Journal
- Accession number :
- 138294393
- Full Text :
- https://doi.org/10.1039/c9dt02917f