Interfacial modulation of Ru catalysts using B, N co-doped porous carbon-confined MoC quantum dots for enhanced hydrogen evolution reaction performance

The development of high-performance electrocatalysts that rival Pt catalysts is crucial for efficiently driving the hydrogen evolution reaction (HER) to produce H 2 . Herein, we engineer sophisticated interfacial modulation of the Ru catalysts by constructing B, N co-doped porous carbon confined ult...

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Published in:Journal of materials chemistry. A, Materials for energy and sustainability Materials for energy and sustainability, 2024-07, Vol.12 (3), p.19462-19469
Main Authors: Xie, Shumin, Niu, Mang, Li, Xingyun, Lei, Yang, Zhang, Huanfang, Xu, Shuai, Wang, Deyu, Osman, Sameh M, Peng, Zhi, Yamauchi, Yusuke
Format: Article
Language:English
Subjects:
Bonding strength
Carbon
Carbon sources
Catalysts
Electrocatalysts
Electronic structure
Electrons
Hydrogen evolution reactions
Modulation
Quantum dots
Ruthenium
Stimulators
Substrates
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Summary:The development of high-performance electrocatalysts that rival Pt catalysts is crucial for efficiently driving the hydrogen evolution reaction (HER) to produce H 2 . Herein, we engineer sophisticated interfacial modulation of the Ru catalysts by constructing B, N co-doped porous carbon confined ultra-small MoC quantum dots (MoC@BNC) as an advanced catalyst carrier and stimulator. Combined experimental and theoretical calculations prove enhanced electron interaction between the Ru catalysts and the MoC quantum dots. Additionally, the B, N co-doped carbon substrate further refines the electronic structure of MoC, reinforcing the modulation of Ru catalysts. The Ru/MoC@BNC catalyst embodies a boosted H 2 O dissociation ability with a lowered H bonding strength, which promises an outstanding HER performance with an overpotential of 14 mV at 10 mA cm −2 in an alkaline solvent. Furthermore, robust catalytic stability is achieved with almost zero deterioration after the cycling test. This result exemplifies the importance of interfacial manipulation of the Ru catalysts to promote HER catalytic performance. B, N-doped porous carbon confined MoC quantum dots were engineered as a facile carrier and electronic stimulator to confine Ru clusters for high-performance hydrogen evolution reaction.
ISSN:2050-7488
2050-7496
DOI:10.1039/d4ta02442g