Partially sulfurized MoO{sub 2} film for durable lithium storage
- College of Physics, Optoelectronics and Energy, Center for Energy Conversion Materials & Physics (CECMP), Soochow University, Suzhou 215006 (China)
- Chemistry Department, M.V. Lomonosov Moscow State University, Moscow 119991 (Russian Federation)
Highlights: • A partially sulfurized MoO{sub 2} (S-MoO{sub 2}) film is grown on Mo substrate. • The hybrid S-MoO{sub 2} film can be directly adapted as Li-storage electrode. • The S-MoO{sub 2} film delivers a high Li capacity of 899 mAh g{sup −1} with good durability. • Self-supported nanostructures are promising for battery application. - Abstract: In this work we present a simple and scalable approach to fabricate highly-active, self-supported molybdenum dioxide (MoO{sub 2}) film for lithium storage. The fabrication is based on a thermal oxidation of Mo foil under air atmosphere and a subsequent sulfurization treatment. A hybrid film composed of partially sulfurized MoO{sub 2} can be produced by controlling the sulfurization conditions. This hybrid film can be directly adapted as binder-free electrode for lithium storage, displaying a reversible capacity of 899 mAh g{sup −1} and a high initial Coulombic efficiency (CE) of 75%. More importantly, the hybrid film sustains 250 successive cycles at a high rate of 10C without evident capacity decay, thereby suggesting its potential for durable battery application.
- OSTI ID:
- 22730493
- Journal Information:
- Materials Research Bulletin, Vol. 96; Other Information: Copyright (c) 2017 Elsevier Science B.V., Amsterdam, The Netherlands, All rights reserved.; Country of input: International Atomic Energy Agency (IAEA); ISSN 0025-5408
- Country of Publication:
- United States
- Language:
- English
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