Electrochemical intercalation of Li into B/C/N materials

PRES 41

Yasuto Imai, m05104@mail.osakac.ac.jp, Graduate School of Engineering, Osaka Electro-Communication University, 18-8 Hatsu-Cho, Neyagawa, 572-8530, Japan and Masayuki Kawaguchi, kawaguti@isc.osakac.ac.jp, Department of Applied Chemistry, Osaka Electro-Communication University, 18-8 Hatsu-Cho, Neyagawa, 572-8530, Japan.
The materials of composition BC6N and BC2N were prepared at 1370~2070K by CVD method using nitrile and boron trichloride. The materials showed the graphite-like layered structure. Electrochemical intercalation of Li into the materials were studied in 1M-LiPF6/EC+DEC (50vol.%) solution by using 3 electrode cell. Cyclic voltammogram (CV) of the BC6N prepared at 2070K showed 3 reduction peaks (1.3V, 0.7V, 0.0V vs. Li/Li+) on first cycle. On the other hand, the BC2N prepared at 2070K showed a CV having reduction peaks (1.5V, 0.7V, 0.0V vs. Li/Li+) on first cycle. The reduction peak at higher potential for BC2N (1.5V) than that for BC6N (1.3V) could be explained by the electronic states of the materials.
 

SWNTs From Synthesis to Application, From the Lab to the Fab: In Memory of Dr. Richard Smalley
4:30 PM-6:30 PM, Sunday, 10 September 2006 Moscone Center -- Room 305, Poster

Presidential Event

The 232nd ACS National Meeting, San Francisco, CA, September 10-14, 2006