Mechanochemical Synthesis of Carbon Fluorides

被引：9

作者：

Read, Jeffrey A. ^{[1
]}

Behl, Wishvender K. ^{[1
]}

机构：

[1] USA, Res Lab, Adelphi, MD 20783 USA

来源：

ELECTROCHEMICAL AND SOLID STATE LETTERS | 2009年 / 12卷 / 01期

关键词：

bonds (chemical); carbon compounds; electrochemistry; infrared spectra; materials preparation; milling; powders; thermal analysis; X-ray diffraction; X-ray photoelectron spectra; GRAPHITE FLUORIDES; INTERCALATION COMPOUNDS; NANOCOMPOSITES; MONOFLUORIDE; CXF;

D O I：

10.1149/1.3008701

中图分类号：

O646 [电化学、电解、磁化学];

学科分类号：

081704 ;

摘要：

Synthesis of electrochemically active carbon fluorides was achieved through the high-energy milling of graphite or carbon black with CoF(3) at room temperature. The carbon fluorides were characterized by elemental analysis, X-ray diffraction, IR, and X-ray photoelectron spectroscopy. The results for the carbon fluoride powder prepared from graphite are reported here. This material, with the formula C(1.6)F, appears to have both semi-ionic and covalent CF bonds and demonstrates many of the characteristics of low-temperature carbon fluorides. The material has a high discharge potential of 3.2 V vs Li/Li(+) and a discharge capacity in the range of 450-500 mAh/g to 2.0 V.

引用

页码：A16 / A18

页数：3

共 29 条

[1] Carbon metal fluoride nanocomposites - High-capacity reversible metal fluoride conversion materials as rechargeable positive electrodes for Li batteries [J].