期刊
ADVANCED FUNCTIONAL MATERIALS
卷 28, 期 30, 页码 -出版社
WILEY-V C H VERLAG GMBH
DOI: 10.1002/adfm.201801527
关键词
few layered N; hydrogen evolution reaction; MoP nanocrystal; MoP cluster hybrids; P dual-doped carbon; self-supported integrated electrodes
类别
资金
- NSFC [21661023, 21601096]
- Application Program from Inner Mongolia Science and Technology Department (2016)
- Program of Higher-level Talents of IMU [21300-5155105]
- Cooperation Project of State Key Laboratory of Baiyun Obo Rare Earth Resource Researches and Comprehensive Utilization [2017Z1950]
Development of highly active and stable electrocatalysts is a key to realize efficient hydrogen evolution through water electrolysis. Here, the development of a 3D self-supported integrated electrode constituting few layered N, P dual-doped carbon-encapsulated ultrafine MoP nanocrystal/MoP cluster hybrids on carbon cloth (FLNPC@MoP-NC/MoP-C/CC) is demonstrated. Benefiting from novel structural features including fully open and accessible nanoporosity, ultrasmall size of MoP-NCs on MoP-Cs as well as strong synergistic effects of N, P dual-doped carbon layers with MoP-NCs, the FLNPC@MoP-NC/MoP-C/CC as a 3D self-supported binder-free integrated electrode exhibits extraordinary catalytic activity for the hydrogen evolution reaction (HER) with extremely low overpotentials at all pH values (j = 10 mA cm(-2) at eta = 74, 106, and 69 mV in 0.5 m H2SO4, 1.0 m PBS, and 1.0 m KOH electrolytes, respectively). To the best of our knowledge, the ultrahigh electrocatalytic performance represents one of the best MoP-based HER electrocatalysts reported so far. Additionally, few layered N, P dual-doped carbon can effectively prevent MoP-NC/MoP-C from corrosion, making the FLNPC@MoP-NC/MoP-C/CC exhibit nearly unfading stability after 50 h testing in acidic, neutral, and alkaline media, which shows great promise for electrocatalytic water splitting application.
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