Insight into the different ORR catalytic activity of Fe/N/C between acidic and alkaline media: Protonation of pyridinic nitrogen
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- 作者：Muhammad Rauf ; Yan-Di Zhao ; Yu-Cheng Wang ; Yan-Ping Zheng ; Chi Chen ; Xiao-Dong Yang ; Zhi-You Zhou ; zhouzy@xmu.edu.cn ; Shi-Gang Sun
- 关键词：Oxygen reduction reaction ; Fe/N/C catalysts ; Active sites ; Pyridinic N ; pH effect
- 刊名：Electrochemistry Communications
- 出版年：2016
- 出版时间：December 2016
- 年：2016
- 卷：73
- 期：Complete
- 页码：71-74
- 全文大小：597 K
- 卷排序：73
文摘
Solution pH value greatly influences the ORR activity of Fe/N/C catalyst. Protonation of pyridinic N will reduce the ORR activity of Fe/N/C catalyst in acid. The amount of pyridinic N determines the activity gap between acid and base media.