Highly Efficient Hydrogen Evolution Reaction Using Crystalline Layered Three-Dimensional Molybdenum Disulfides Grown on Graphene Film
| Autor: | Tara Foroozan, Jeremiah T. Abiade, Cong Liu, Patrick J. Phillips, Larry A. Curtiss, Mohammad Asadi, Amin Salehi-Khojin, Robert F. Klie, Kibum Kim, Poya Yasaei, Amirhossein Behranginia, Bijandra Kumar, Joseph C. Waranius |
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| Rok vydání: | 2016 |
| Předmět: |
Materials science
Graphene General Chemical Engineering Inorganic chemistry Exchange current density chemistry.chemical_element 02 engineering and technology General Chemistry 010402 general chemistry 021001 nanoscience & nanotechnology Electrochemistry 01 natural sciences Energy storage 0104 chemical sciences law.invention Catalysis chemistry.chemical_compound chemistry law Molybdenum Materials Chemistry Hydrogen evolution 0210 nano-technology Molybdenum disulfide |
| Zdroj: | Chemistry of Materials. 28:549-555 |
| ISSN: | 1520-5002 0897-4756 |
| DOI: | 10.1021/acs.chemmater.5b03997 |
| Popis: | Electrochemistry is central to applications in the field of energy storage and generation. However, it has advanced far more slowly over the last two decades, mainly because of a lack of suitable and affordable catalysts. Here, we report the synthesis of highly crystalline layered three-dimensional (3D) molybdenum disulfide (MoS2) catalysts with bare Mo-edge atoms and demonstrate their remarkable performance for the hydrogen evolution reaction (HER). We found that Mo-edge-terminated 3D MoS2 directly grown on graphene film exhibits a remarkable exchange current density (18.2 μA cm–2) and turnover frequency (>4 S–1) for HER. The obtained exchange current density is 15.2 and 2.3 times higher than that of MoS2/graphene and MoS2/Au catalysts, respectively, both with sulfided Mo-edge atoms. An easily scalable and robust growth process on a wide variety of substrates, along with prolonged stability, suggests that this material is a promising catalyst in energy-related applications. |
| Databáze: | OpenAIRE |
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