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Mesoporous Mn2O3/reduced graphene oxide (rGO) composite with enhanced electrochemical performance for Li-ion battery.
- Source :
- Dalton Transactions: An International Journal of Inorganic Chemistry; 8/14/2017, Vol. 46 Issue 30, p9777-9783, 7p
- Publication Year :
- 2017
-
Abstract
- Transition metal oxides are the most promising candidates in low-cost and eco-friendly energy storage/conversion applications. Herein, bare Mn<subscript>2</subscript>O<subscript>3</subscript> and a Mn<subscript>2</subscript>O<subscript>3</subscript>/reduced graphene oxide (rGO) composite have been synthesized by a facile chemical co-precipitation and subsequent annealing procedure. The synthesized Mn<subscript>2</subscript>O<subscript>3</subscript>/rGO composite exhibits a porous microcube structure formed with several interconnected particles. The porous Mn<subscript>2</subscript>O<subscript>3</subscript>/rGO composite, with high surface area and increased conductivity, facilited the charge transfer to enhance the overall electrochemical performance when applied as an anode material in Li-ion batteries. The porous Mn<subscript>2</subscript>O<subscript>3</subscript>/rGO composite exhibits a highly reversible lithium storage capacity of 1015 mA h g<superscript>−1</superscript> at a rate of 0.5 C (230 mA g<superscript>−1</superscript>) during 130 cycles with excellent cycling stability and rate capability. The superior electrochemical performance results mainly due to the combined effect of rGO and Mn<subscript>2</subscript>O<subscript>3</subscript>, which offers high conductivity, faster Li<superscript>+</superscript> ion transfer, and enhanced structural stability. The material synthesis strategy presented in this study is simple, cost-effective and scalable, which can open new avenues for large-scale applications of composites of graphene and other transition metal oxides. [ABSTRACT FROM AUTHOR]
- Subjects :
- GRAPHENE oxide
LITHIUM-ion batteries
COMPOSITE materials
Subjects
Details
- Language :
- English
- ISSN :
- 14779226
- Volume :
- 46
- Issue :
- 30
- Database :
- Complementary Index
- Journal :
- Dalton Transactions: An International Journal of Inorganic Chemistry
- Publication Type :
- Academic Journal
- Accession number :
- 124419492
- Full Text :
- https://doi.org/10.1039/c7dt01424d