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Porous MoP2/MoS2 hierarchical nanowires for efficient hydrogen evolution reaction in full pH range.
- Source :
-
Journal of Alloys & Compounds . May2024, Vol. 985, pN.PAG-N.PAG. 1p. - Publication Year :
- 2024
-
Abstract
- Rational designing Mo-based heterojunction catalysts as hydrogen evolution catalysts is seriously significant for the widespread utilization of hydrogen energy. Here, the ingenious hierarchical construction of MoP 2 /MoS 2 nanowires was delivered with high conductivity of porous MoP 2 and abundant active sites of defect-rich MoS 2. Under synergistic effect of two materials, this catalyst achieves a dramatically optimized electronic structure to boost hydrogen evolution in all-pH range. The optimal MoP 2 /MoS 2 /CC nanoreactor showed overpotentials of 47.11, 60.16, and 89.83 mV to drive −10 mA cm−2 and Tafel slopes of 51.69, 52.04, and 73.79 mV dec−1 in acidic, alkaline, and neutral media, respectively. This finding may provide an effective approach for elevating the pH-universal electrocatalytic performance in order to achieve industrial hydrogen evolution. • Delicate hierarchical construction of MoP 2 /MoS 2 lead to favorable preformace for HER. • High-dose thiourea hydrothermal prepares defective MoS 2 with plentiful active sites. • Porous semimetallic MoP 2 frame accelerates electron transport. • The MoP 2 /MoS 2 showes tiny overpotentials and robust stability over a wide pH range. [ABSTRACT FROM AUTHOR]
Details
- Language :
- English
- ISSN :
- 09258388
- Volume :
- 985
- Database :
- Academic Search Index
- Journal :
- Journal of Alloys & Compounds
- Publication Type :
- Academic Journal
- Accession number :
- 176070534
- Full Text :
- https://doi.org/10.1016/j.jallcom.2024.174024