Low-temperature synthesis of nitrogen doped carbon nanotubes as promising catalyst support for methanol oxidation

• 作者: Changpeng Liu Jianbing Zhu Junjie Ge Liang Liang Meiling Xiao Wei Xing
• 来源期刊: 能源化学
• 年，卷（期）: 2019,（1）
• 页码范围: 118-122
• 页数: 5页
• 语种: 英文

摘要

The electrochemical methanol oxidation reaction (MOR) is of paramount importance for direct methanol fuel cell (DMFC) application, where efficient catalysts are required to facilitate the complicated multi-ple charge transfer process. The catalyst support not only determines the dispersion status of the cata-lysts particles, but also exerts great influence on the electronic structure of the catalysts, thereby alter-ing its intrinsic activity. Herein, we demonstrated that nitrogen atoms, assisted by the pre-treatment of carbon matrix with oxidants, can be easily doped into carbon nanotubes at low temperature. The ob-tained nitrogen-doped carbon nanotubes can effectively improve the dispersion of the supported plat-inum nanoparticles and facilitate the MOR by modifying the electronic structure of platinum atoms, through catalyst-support interaction.