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- W2890740922 abstract "Iron- and nitrogen-codoped carbon (Fe–N/C) catalysts have emerged as promising alternatives to Pt-based catalysts for the oxygen reduction reaction (ORR) owing to their prominent ORR activity among nonprecious metal catalysts (NPMCs). This high ORR activity originates from atomically dispersed Fe coordinated with nitrogen atoms (Fe–Nx site). However, the rational design of Fe–N/C catalysts with abundant Fe–Nx active sites remains a challenge. In this work, we demonstrate that a silica-coating-mediated synthetic strategy enables the preparation of Fe–N/C catalysts enriched with active Fe–Nx sites while mitigating the formation of less active Fe and Fe3C species. The silica-coating-mediated strategy was generally applicable to various types of Fe and N precursors, including iron porphyrin, iron acetate/1,10-phenanthroline, and iron chloride/polyaniline. This strategy was also effective in the preparation of Fe–N/C catalysts with various carbon supports and a wide range of Fe contents and pyrolysis temperatu..." @default.
- W2890740922 created "2018-09-27" @default.
- W2890740922 creator A5004473012 @default.
- W2890740922 creator A5033055509 @default.
- W2890740922 creator A5037158942 @default.
- W2890740922 creator A5051679936 @default.
- W2890740922 creator A5058636655 @default.
- W2890740922 creator A5060011962 @default.
- W2890740922 creator A5073039234 @default.
- W2890740922 creator A5075090081 @default.
- W2890740922 creator A5087341192 @default.
- W2890740922 date "2018-09-09" @default.
- W2890740922 modified "2023-10-17" @default.
- W2890740922 title "Promoting Oxygen Reduction Reaction Activity of Fe–N/C Electrocatalysts by Silica-Coating-Mediated Synthesis for Anion-Exchange Membrane Fuel Cells" @default.
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