Synthesis and oxidation behavior of boron-substituted carbon powders by hot filament chemical vapor deposition |
| |
Authors: | QianKu Hu QingHua Wu Guang Sun XiaoGuang Luo Bo Xu DongLi Yu JuLong He |
| |
Affiliation: | (1) State Key Laboratory of Metastable Materials Science and Technology, Yanshan University, Qinhuangdao, 066004, China;(2) School of Materials Science and Engineering, Henan Polytechnic University, Jiaozuo, 454010, China |
| |
Abstract: | Boron-substituted carbon powder, B
x
C1−x
with x up to 0.17, has been successfully synthesized by hot filament chemical vapor deposition. The boron concentration in prepared
B
x
C1−x
samples can be controlled by varying the relative proportions of methane and diborane. X-ray diffraction, transmission electron
microscopy, and electron energy loss spectrum confirm the successful synthesis of an amorphous BC5 compound, which consists of 10–20 nm particles with disk-like morphology. Thermogravimetry measurement shows that BC5 compound starts to oxidize approximately at 620°C and has a higher oxidation resistance than carbon.
Supported by the National Natural Science Foundation of China (Grant Nos. 10474083, 50472051, 50532020, 50672081) and the
National Basic Research Program of China (Grant No. 2005CB724400) |
| |
Keywords: | carbon boron hot filament chemical vapor deposition substitution oxidation behavior |
本文献已被 SpringerLink 等数据库收录! |
|