Skip to main content
U.S. Department of Energy
Office of Scientific and Technical Information

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