Abstract
Mesoporous carbon-Cr 2O 3 (M-C-Cr 2O 3) composite was prepared by co-assembly of in situ formed phenolic resin, chromium precursor, and Pluronic block copolymer under acidic conditions, followed by carbonization at 750 °C under Argon. The TEM results confirmed that the Cr 2O 3 nanoparticles, ranging from 10 to 20 nm, were well dispersed in the matrix of mesoporous carbon. The composite exhibited an initial reversible capacity of 710 mAh g -1 and good cycling stability, which is mainly due to the synergic effects of carbons within the composites, i.e. confining the crystal growth of Cr 2O 3 during the high temperature treatment step and buffering the volume change of Cr 2O 3 during the cycling step. This composite material is a promising anode material for lithium ion batteries.
| Original language | English |
|---|---|
| Pages (from-to) | 495-499 |
| Number of pages | 5 |
| Journal | Journal of Power Sources |
| Volume | 205 |
| DOIs | |
| State | Published - May 1 2012 |
Funding
The main part of this work was supported by the U.S. Department of Energy's Office of Basic Energy Science, Division of Materials Sciences and Engineering, under contract with UT Battelle, LLC. B.K.G. was supported by the DOE VT program. M.F.C. would like to thank the support of ORNL's SHaRE User Facility, which is sponsored by the DOE Office of Basic Energy Science.
| Funders | Funder number |
|---|---|
| DOE Office of Basic Energy Science | |
| U.S. Department of Energy | |
| Basic Energy Sciences | |
| Oak Ridge National Laboratory | |
| Division of Materials Sciences and Engineering |
Keywords
- Chromium oxide
- Conversion reaction
- Lithium ion battery
- Mesoporous carbon
