Carbon-based nanomaterial synthesis using nanosecond electrical discharges in immiscible layered liquids: $\textit{n}$-heptane and water
Name:
Hamdan+et+al_2018_J._Phys._D%3A_Appl._Phys._10.1088_1361-6463_aac46f.pdf
Size:
1.369Mb
Format:
PDF
Description:
Accepted Manuscript
Type
ArticleAuthors
Hamdan, Ahmad
Cha, Min Suk

KAUST Department
Clean Combustion Research CenterMechanical Engineering Program
Physical Science and Engineering (PSE) Division
KAUST Grant Number
BAS/1/1384-01-01Date
2018-05-24Online Publication Date
2018-05-24Print Publication Date
2018-06-20Permanent link to this record
http://hdl.handle.net/10754/627928
Metadata
Show full item recordAbstract
Plasmas in- or in-contact with liquids have been extensively investigated due to their high potential for a wide range of applications including but not limited to, water treatment, material synthesis and functionalization, bio-medical applications, and liquid fuel reformation. Recently, we successfully developed a discharge using two immiscible liquids, having very different electrical permittivities, which could significantly intensify the electric field intensity. Here, we establish nanosecond discharges at the interface n-heptane-water (with respective relative dielectric permittivities of 2 and 80) to enable the synthesis of carbon-based nanomaterials. A characterization of the as-synthesized material and the annealed (500 °C) material, using various techniques (Fourier-Transform, Infra-Red, Scanning and Transmission electron microscopes, etc.), shows that the as-synthesized material is a mixture of two carbon-based phases: a crystalline phase (graphite like) embedded into a phase of hydrogenated amorphous carbon. The existence of two-phases may be explained by the non-homogeneity of the discharge that induces various chemical reactions in the plasma channel.Citation
Hamdan A, Cha MS (2018) Carbon-based nanomaterial synthesis using nanosecond electrical discharges in immiscible layered liquids: n-heptane and water. Journal of Physics D: Applied Physics. Available: http://dx.doi.org/10.1088/1361-6463/aac46f.Sponsors
The research reported in this publication was supported by funding from King Abdullah University of Science and Technology (KAUST), under award number BAS/1/1384-01-01Publisher
IOP PublishingAdditional Links
http://iopscience.iop.org/article/10.1088/1361-6463/aac46fae974a485f413a2113503eed53cd6c53
10.1088/1361-6463/aac46f