The α-Fe2O3@nitrogen doped carbon (as donated α-Fe2O3@NC) composites derived from green microalgae was synthesized using one-pot spray pyrolysis, which showed a high discharge capacity of 1281.5 mAh g−1 at 100 mA g−1 as anode materials for lithium ion storage. They also provided good rate performance in a range of 200 mA g−1–1000 mA g−1, and maintained a capacity of 92% after 100 cycles at 200 mA g−1. It demonstrated not only improved electrical conductivity but also effective prevention of the volume expansion of iron oxide during battery charge/discharge by uniformly forming iron oxide nanoparticles on microalgae via spray pyrolysis.
Bibliographical noteFunding Information:
This work was supported by the KIST Institutional Program ( 2E27141 ) and Korea Institute of Energy Technology Evaluation and Planning (KETEP) grant ( 20162010103990 ).
© 2018 The Korean Society of Industrial and Engineering Chemistry
- Anode materials
- Green microalgae
- Lithium ion battery
- Nitrogen doped carbon
- Spray pyrolysis
ASJC Scopus subject areas
- General Chemical Engineering