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- Title
Synthesis of Mesoporous FeN/C Materials with High Catalytic Performance in the Oxygen Reduction Reaction.
- Authors
Wang, Shiping; Zhu, Minglei; Bao, Xiaobing; Wang, Jing; Chen, Chunhong; Li, Haoran; Wang, Yong
- Abstract
The tedious and costly route of the general nanocasting method hinders the commercial application of mesoporous non-precious metal catalysts based on transition metal-coordinating nitrogen-doped carbons (MN/C). Here, a simple, economic and sustainable hydrothermal carbonization (HTC)/soft templating method is demonstrated for the direct preparation of mesoporous FeN/C materials (FeN/MC). By this method, FeN/MC materials with high specific surface area, hierarchically mesoporous structure, and appropriate iron and nitrogen contents are prepared. The optimized FeN/MC materials exhibit superior catalytic performance in the oxygen reduction reaction (ORR) to commercial Pt/C in 0.1 M KOH. This confirms that the materials are one of the most efficient non-precious metal catalysts for the ORR in alkaline electrolyte. In addition, considerable durability and ORR activity are demonstrated by the FeN/MC materials in 0.1 M HClO4. Thus, this HTC/soft templating method has great promise for the practical application of this kind of non-precious metal catalysts in the ORR.
- Subjects
CARBON composites; OXYGEN reduction; IRON; NITROGEN; MESOPOROUS materials; CATALYTIC activity; HYDROTHERMAL carbonization; PERCHLORIC acid
- Publication
ChemCatChem, 2015, Vol 7, Issue 18, p2937
- ISSN
1867-3880
- Publication type
Article
- DOI
10.1002/cctc.201500293