Fe/Fe3C/N-Doped Carbon Materials from Metal-Organic Framework Composites as Highly Efficient Oxygen Reduction Reaction Electrocatalysts
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- 作者：Yuhong Qian ; Jack Cavanaugh ; Inayat Ali Khan ; Dr. Xuerui Wang ; Dr. Yongwu Peng ; Dr. Zhigang Hu ; Yuxiang Wang and Dr. Dan Zhao
- 刊名：ChemPlusChem
- 出版年：2016
- 出版时间：August 2016
- 年：2016
- 卷：81
- 期：8
- 页码：718-723
- 全文大小：1828K
- ISSN：2192-6506
文摘
A series of Fe/Fe3C-containing N-doped porous carbon materials (Fe/NC) were prepared by pyrolyzing composites that contained a metal–organic framework (MIL-88c-Fe) with dicyandiamide. The Fe/NC obtained at 800 °C (Fe/NC800) showed comparable onset potential and kinetics to that of the commercial Pt/C catalyst in catalyzing the oxygen reduction reaction (ORR). Further measurements suggested that it has better durability and much higher methanol tolerance than Pt/C. Acid leaching was performed to reveal the critical role of Fe-containing sites in ORR catalysis.