期刊
NANOMATERIALS
卷 12, 期 20, 页码 -出版社
MDPI
DOI: 10.3390/nano12203603
关键词
nanosecond discharge; discharge in liquid; plasma-liquid interface; nanoalloys
类别
资金
- Natural Sciences and Engineering Research Council of Canada (NSERC) [RGPIN-2018-04869]
- Fonds de Recherche du Quebec-Nature et Technologie (FRQ-NT)
- Canada Foundation for Innovation (CFI)
- Fondation Courtois
Discharge in liquid is a promising technique for producing nanomaterials through electrode erosion. However, the production of nanoalloys through in-liquid discharges remains challenging. In this study, nanoalloys of Ni-Fe, Ni-Co, Co-Fe, and Ni-Co-Fe were successfully synthesized through spark discharge in liquid cyclohexane. The results offer new pathways for producing a wide range of nanoalloys.
Discharge in liquid is a promising technique to produce nanomaterials by electrode erosion. Although its feasibility was demonstrated in many conditions, the production of nanoalloys by in-liquid discharges remains a challenge. Here, we show that spark discharge in liquid cyclohexane that is in contact with conductive solution, made of a combination of Ni-nitrate and/or Fe-nitrate and/or Co-nitrate, is suitable to produce nanoalloys (<10 nm) of Ni-Fe, Ni-Co, Co-Fe, and Ni-Co-Fe. The nanoparticles are synthesized by the reduction of metal ions during discharge, and they are individually embedded in C-matrix; this latter originates from the decomposition of cyclohexane. The results open novel ways to produce a wide spectrum of nanoalloys; they are needed for many applications, such as in catalysis, plasmonic, and energy conversion.
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