教学科研 - 陈 元振
| 论文标题 | Enhanced Fe dispersion via “pinning” effect of thiocyanate ion on ferric ion in Fe-N-S-doped catalyst as an excellent oxygen reduction reaction electrode |
| 作者 | Chengyong Shu, Yuanzhen Chen∗, Xiao-Dong Yang, Yan Liu, Shaokun Chong etal. |
| 发表/完成日期 | 2017-11-28 |
| 期刊名称 | Journal of Power Sources |
| 期卷 | 376 (2018) |
| 相关文章 | |
| 论文简介 | In this study, by using thiocyanate as an iron ion dispersing agent, the pinning effect of thiocyanate ion (SCN−) enables the high dispersion of Fe3+ in a nitrogen-doped carbon polymer and significantly promotes ORR catalysis in both acidic and alkaline media. It shows 47.3 A g−1 kinetic ORR current density in 0.1 M H2SO4 solution at 0.8 V vs. RHE. In addition, SCN− can dope into the base material and modify the surface of catalysts, which generates strong cyanide N functional groups. Additionally, it also has a higher BET surface area and more uniform granularity, which accounts for the enhancement in mass transport. |
