Electrochemical properties of nano-sized Fe2O3-loaded carbon as a lithium battery anode

Bui Thi Hang, Izumi Watanabe, Takayuki Doi, Shigeto Okada, Jun Ichi Yamaki

研究成果: Contribution to journalArticle査読

61 被引用数 (Scopus)

抄録

Nano-sized Fe2O3-loaded carbon material was prepared by loading Fe2O3 on carbon using a chemical method. Fe(NO3)3 was impregnated on carbon in an aqueous solution, and the mixture was dried and then calcined for 1 h at 400 °C in flowing Ar. Transmission electron microscopy (TEM) coupled with X-ray diffraction measurements revealed that small Fe2O3 particles (a few tenths of nanometers) were distributed on the carbon surface. The obtained nano-sized Fe2O3-loaded carbon material acted as an anode in a Li cell. High charge capacities of over 1000 mAh g-1 (reduction of Fe2O3) in the first charge process suggested that Fe3+ in Fe2O3 was electrochemically reduced to Fe0. Investigation of the charge material by X-ray photoelectron spectroscopy (XPS) confirmed that Fe3+ is reduced to Fe0. Nano-sized Fe2O3-loaded acetylene black (AB), which, due to the larger surface area of AB, gave a greater distribution of nano-sized Fe2O3 particles than graphite, provided a larger capacity than nano-sized Fe2O3-loaded graphite.

本文言語英語
ページ(範囲)1281-1287
ページ数7
ジャーナルJournal of Power Sources
161
2
DOI
出版ステータス出版済み - 10 27 2006

All Science Journal Classification (ASJC) codes

  • 再生可能エネルギー、持続可能性、環境
  • エネルギー工学および電力技術
  • 物理化学および理論化学
  • 電子工学および電気工学

フィンガープリント

「Electrochemical properties of nano-sized Fe<sub>2</sub>O<sub>3</sub>-loaded carbon as a lithium battery anode」の研究トピックを掘り下げます。これらがまとまってユニークなフィンガープリントを構成します。

引用スタイル