期刊
APPLIED CATALYSIS A-GENERAL
卷 347, 期 1, 页码 43-49出版社
ELSEVIER SCIENCE BV
DOI: 10.1016/j.apcata.2008.05.035
关键词
proton exchange membrane fuel cell (PEMFC); oxygen reduction reaction (ORR); electrocatalyst; catalyst support; vertically aligned carbon nanotubes (VACNT); rotating ring disk electrode (RRDE) technique
资金
- Natural Sciences and Engineering Research Council of Canada
Non-noble metal electrocatalyst (Fe-N-C) for the oxygen reduction reaction (ORR) was sputter deposited onto films of vertically aligned carbon nanotubes (VACNT) and tested by the rotating ring disk electrode (RRDE) technique. The VACNT Support was first synthesized at atmospheric pressure on a SiO2/Si wafer Substrate in a simple tube furnace by iron-catalyzed chemical vapor deposition of ethylene and ammonia at a temperature of 720 degrees C. VACNT films, with CNT bundle height of 1.5 mu m and CNT diameter of 50 mm, were loaded into a sputtering machine to deposit Fe-N-C materials onto the VACNT as support. Iron and carbon were sputtered in a nitrogen atmosphere in order to deposit an amorphous mixture of Fe-N-C material on the VACNT films. The Fe-N-C material supported on the VACNT films was then annealed in At at 800 degrees C to make the ORR electrocatalyst. The catalyst-coated VACNT was scraped off the SiO2/Si Substrate and made into catalyst ink for testing by the RRDE technique. The impact of catalyst loading on the RRDE performance (disk current density and %H2O2) is discussed. (c) 2008 Elsevier B.V. All rights reserved.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据