α-Fe2O3 anchored on porous N doped carbon derived from green microalgae via spray pyrolysis as anode materials for lithium ion batteries

• Published in: Journal of industrial and engineering chemistry (Seoul, Korea) Vol. 69; pp. 39 - 47
• Main Authors: Kwon, Ki Min, Kim, In Gyeom, Lee, Kwan-Young, Kim, Hansung, Kim, Mun Sek, Cho, Won Il, Choi, Jaeyoung, Nah, In Wook
• Format: Journal Article
• Language: English
• Published: Elsevier B.V 25.01.2019; 한국공업화학회
• Subjects: Anode materials; Green microalgae; Lithium ion battery; Nitrogen doped carbon; Spray pyrolysis; 화학공학; Lithium ion battery; Spray pyrolysis; Nitrogen doped carbon; Green microalgae; Anode materials
• ISSN: 1226-086X; 1876-794X
• DOI: 10.1016/j.jiec.2018.09.004

[Display omitted] 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 1281.5mAhg−1 at 100mAg−1 as anode materials for lithium ion storage. They also provided good rate performance in a range of 200mAg−1–1000mAg−1, and maintained a capacity of 92% after 100 cycles at 200mAg−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.