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• W3186197691 startingPage "713" @default.
• W3186197691 abstract "Fuel cells have attracted increasing attention due to their low cost, high energy density, low environmental pollution, and abundant raw materials. Oxygen reduction reaction (ORR) is a core technology of fuel cells, and the development of new electrocatalysts with high ORR performance is highly desirable. Herein, we synthesize a series of B, N co-doped hierarchical porous carbons using a soft template method with the integration of self-assembly, calcination and etching. The obtained materials exhibit hierarchical porous structures, controllable pore distribution, partial graphite structures, and B, N co-doping. They can function as the cost-effective and metal-free electrocatalysts, facilitating the diffusion of electrolyte ions and the improvement of ORR performance. Especially, the B, N co-doped porous carbon with the B-to-N molar ratio of 5 (BNC-5) displays a high ORR activity with a half-wave potential (E1/2 ) of 0.73 V, an onset potential (Eonset ) of 0.94 V, and a high limiting current density (JL ) of 5.98 mA cm-2 , superior to the N-doped C (NC) and BNC-1 (the B-to-N molar ratio=1), BNC-3 (the B-to-N molar ratio=3) and BNC-7 (the B-to-N molar ratio=7) under the identical conditions. Moreover, the BNC-5 exhibits good cycling stability after 5000 cyclic voltammetry (CV) cycles and excellent tolerance toward even 3 M methanol. This research provides a new approach for the facile synthesis of dual element-doped carbon electrocatalysts with high ORR performance." @default.
• W3186197691 created "2021-08-02" @default.
• W3186197691 creator A5001955279 @default.
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• W3186197691 date "2021-07-01" @default.
• W3186197691 modified "2023-10-14" @default.
• W3186197691 title "Metal‐Free B, N co‐Doped Hierarchical Porous Carbon Electrocatalyst with an Excellent O ₂ Reduction Performance" @default.
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• W3186197691 doi "https://doi.org/10.1002/open.202100090" @default.
• W3186197691 hasPubMedCentralId "https://www.ncbi.nlm.nih.gov/pmc/articles/8312485" @default.
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• W3186197691 hasPublicationYear "2021" @default.
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