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

Research output: Contribution to journalArticle

59 Citations (Scopus)

Abstract

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.

Original languageEnglish
Pages (from-to)1281-1287
Number of pages7
JournalJournal of Power Sources
Volume161
Issue number2
DOIs
Publication statusPublished - Oct 27 2006

Fingerprint

Lithium batteries
lithium batteries
Electrochemical properties
Anodes
anodes
Carbon
carbon
Acetylene
Graphite
acetylene
graphite
x rays
X ray photoelectron spectroscopy
photoelectron spectroscopy
aqueous solutions
Transmission electron microscopy
X ray diffraction
transmission electron microscopy
cells
diffraction

All Science Journal Classification (ASJC) codes

  • Renewable Energy, Sustainability and the Environment
  • Energy Engineering and Power Technology
  • Physical and Theoretical Chemistry
  • Electrical and Electronic Engineering

Cite this

Electrochemical properties of nano-sized Fe2O3-loaded carbon as a lithium battery anode. / Hang, Bui Thi; Watanabe, Izumi; Doi, Takayuki; Okada, Shigeto; Yamaki, Jun Ichi.

In: Journal of Power Sources, Vol. 161, No. 2, 27.10.2006, p. 1281-1287.

Research output: Contribution to journalArticle

Hang, Bui Thi ; Watanabe, Izumi ; Doi, Takayuki ; Okada, Shigeto ; Yamaki, Jun Ichi. / Electrochemical properties of nano-sized Fe2O3-loaded carbon as a lithium battery anode. In: Journal of Power Sources. 2006 ; Vol. 161, No. 2. pp. 1281-1287.
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