Advanced Materials Interfaces | Vol.4, Issue.11 | | Pages
H2O2-Assisted Synthesis of Porous N-Doped Graphene/Molybdenum Nitride Composites with Boosted Oxygen Reduction Reaction
Nonprecious metal (NPM) catalysts are considered as the most promising candidate to replace Pt-based electrocatalysts for oxygen reduction reaction (ORR). However, in comparison with the commercial Pt catalyst, the development of high efficiency and low cost NPM catalysts for ORR still remains a big challenge. Here, a simple but efficient way to fabricate porous N-doped graphene immobilized molybdenum nitride (MoN) nanoparticles is reported, and simultaneously, the introduction of H2O2 plays a key role in modulating the particle size of MoN and the microstructure of the composite to achieve different configuration. As results, it is shown that the as-prepared material owns outstanding ORR activity and excellent stability in an alkaline medium. To the best knowledge, this catalyst possesses the best performance among the same class catalysts as reported. It is believed that the H2O2-assisted strategy can provide new insights in synthesis of high efficient metal nitride/carbon hybrid materials toward advanced energy conversion and storage. Porous N-doped graphene/molybdenum nitride composites (MoN@N-PG) by H2O2-assisted synthesis are developed as an excellent oxygen reduction reaction (ORR) electrocatalyst. The introduction of H2O2 plays an important role in regulating both the MoN particle size and microstructure of such composites during the synthesis process, accordingly improving their electrochemical properties toward ORR.
Original Text (This is the original text for your reference.)
H2O2-Assisted Synthesis of Porous N-Doped Graphene/Molybdenum Nitride Composites with Boosted Oxygen Reduction Reaction
Nonprecious metal (NPM) catalysts are considered as the most promising candidate to replace Pt-based electrocatalysts for oxygen reduction reaction (ORR). However, in comparison with the commercial Pt catalyst, the development of high efficiency and low cost NPM catalysts for ORR still remains a big challenge. Here, a simple but efficient way to fabricate porous N-doped graphene immobilized molybdenum nitride (MoN) nanoparticles is reported, and simultaneously, the introduction of H2O2 plays a key role in modulating the particle size of MoN and the microstructure of the composite to achieve different configuration. As results, it is shown that the as-prepared material owns outstanding ORR activity and excellent stability in an alkaline medium. To the best knowledge, this catalyst possesses the best performance among the same class catalysts as reported. It is believed that the H2O2-assisted strategy can provide new insights in synthesis of high efficient metal nitride/carbon hybrid materials toward advanced energy conversion and storage. Porous N-doped graphene/molybdenum nitride composites (MoN@N-PG) by H2O2-assisted synthesis are developed as an excellent oxygen reduction reaction (ORR) electrocatalyst. The introduction of H2O2 plays an important role in regulating both the MoN particle size and microstructure of such composites during the synthesis process, accordingly improving their electrochemical properties toward ORR.
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