Fe/N/S-doped mesoporous carbon nanostructures as electrocatalysts for oxygen reduction reaction in acid medium
| Autor: | Young-Woo Lee, Da-Hee Kwak, In-Ae Choi, Kyung-Won Park, Jung Inn Sohn, Do-Hyoung Kim, Hyun-Suk Park, Min-Cheol Kim, Kyeng-Bae Ma, Sang-Beom Han, Si-Jin Kim |
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| Rok vydání: | 2017 |
| Předmět: |
inorganic chemicals
Nanostructure Materials science Process Chemistry and Technology Inorganic chemistry Doping chemistry.chemical_element 02 engineering and technology 010402 general chemistry 021001 nanoscience & nanotechnology 01 natural sciences Sulfur Nitrogen Catalysis Cathode 0104 chemical sciences law.invention Mesoporous organosilica Mesoporous carbon chemistry law 0210 nano-technology General Environmental Science |
| Zdroj: | Applied Catalysis B: Environmental. 203:889-898 |
| ISSN: | 0926-3373 |
| Popis: | Many alternatives to typical Pt-based catalysts have been developed to enhance oxygen reduction reaction (ORR) performance in acid medium due to their scarcity and high activation loss during the ORR. We synthesized mesoporous carbon nanostructures with multi-dopants such as iron, nitrogen, and sulfur as a cathode catalyst using the ordered silica templates and porphyrinic iron. The co-doped mesoporous carbon cathode catalysts exhibited a high ORR performance in an acid medium, i.e. complete ORR process and improved durability. The enhanced ORR properties of the catalysts might be ascribed to iron-containing catalytic active sites surrounded by nitrogen/sulfur species and a well-defined mesoporous carbon nanostructure. |
| Databáze: | OpenAIRE |
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