Spinach juice-derived porous Fe{sub 2}O{sub 3}/carbon nanorods as superior anodes for lithium-ion batteries
Journal Article
·
· Materials Research Bulletin
Graphical abstract: The table of contents entry: The Fe{sub 2}O{sub 3}/C nanocomposite is synthesized successfully by using green plant (spinach juice) as the carbon resource and soft template, which exhibits favorable specific capacity and excellent cycling stability. - Highlights: • The spinach juice serves as the carbon resource and soft template. • As-obtained nanorods are composed of Fe{sub 2}O{sub 3} and carbon with porous nature. • Rod-like Fe{sub 2}O{sub 3}/C exhibits good rate capability and cycling stability as LIB anode. - Abstract: A low-cost and green method to get electrode materials with wonderful electrochemical performance is decisive for the development of lithium ion batteries (LIBs). Here it’s the first time to synthesize rod-like porous Fe{sub 2}O{sub 3} coated with carbon (Fe{sub 2}O{sub 3}/C) by using biomolecules in spinach juice as soft templates and carbon resource. The different initial concentrations of Fe{sup 3+} can affect the morphologies and electrochemical properties of samples. When the initial concentration of Fe{sup 3+} is 0.4 M, the sample (Fe{sub 2}O{sub 3}/C-2) exhibits favorable performance of lithium storage owing to the existence of carbon with excellent electroconductivity and the porous rode-like structure which can relieve the large volume change and provide pathway for Li{sup +} transport during cycles. The initial capacity of sample is 1405 mA h g{sup −1} while the capacity maintained 581 mA h g{sup −1} after 100 cycles at a current density of 0.2 A g{sup −1}. The excellent electrochemical performances of Fe{sub 2}O{sub 3}/C-2 make it a promising anode material for LIBs.
- OSTI ID:
- 22730458
- Journal Information:
- Materials Research Bulletin, Journal Name: Materials Research Bulletin Vol. 95; ISSN MRBUAC; ISSN 0025-5408
- Country of Publication:
- United States
- Language:
- English
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