摘要
Novel nitrogen-doped mesoporous carbon hollow spheres (NMCs) as a catalyst support are prepared using polyaniline as both a carbon and a nitrogen source, where the amount of doped nitrogen is controllable (N/C ratio 7.81-16.83 wt%). The prepared NMCs are characterized via scanning electron microscopy, transmission electron microscopy, conductivity and nitrogen adsorption and desorption isotherms. For fuel cell application, a uniform dispersion of Pt nanoparticles with a diameter of 3.8 ± 1.3 nm is anchored on the surface of the NMCs by ethylene glycol reduction. In a single cell test, the Pt/NMC catalyst is found to have superior catalytic activity to better support the oxygen reduction reaction, resulting in an enhancement of about 19% in mass activity compared with that of the commercial Pt/C catalyst, E-TEK.
原文 | English |
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頁(從 - 到) | 5521-5526 |
頁數 | 6 |
期刊 | New Journal of Chemistry |
卷 | 38 |
發行號 | 11 |
DOIs | |
出版狀態 | Published - 2014 11月 1 |
All Science Journal Classification (ASJC) codes
- 催化
- 一般化學
- 材料化學