Remarkable thermal conductivity enhancement in Ag—decorated graphene nanocomposites based nanofluid by laser liquid solid interaction in ethylene glycol
| Autor: | John Kennedy, K. Kaviyarasu, T. Khamliche, Mohamed Henini, M. C. Mbambo, Saleh Khamlich, Mohammed Khenfouch, I.G. Madiba, Malik Maaza, Elayaperumal Manikandan, M.K. Moodley, Moshawe J. Madito |
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| Rok vydání: | 2020 |
| Předmět: |
Materials science
Energy science and technology lcsh:Medicine 02 engineering and technology Liquid solid 01 natural sciences Article law.invention chemistry.chemical_compound Nanofluid Thermal conductivity Nanoscience and technology law 0103 physical sciences lcsh:Science 010302 applied physics Multidisciplinary Nanocomposite Graphene lcsh:R 021001 nanoscience & nanotechnology Laser Chemical engineering chemistry Heat transfer lcsh:Q 0210 nano-technology Ethylene glycol |
| Zdroj: | Scientific Reports Scientific Reports, Vol 10, Iss 1, Pp 1-14 (2020) |
| ISSN: | 2045-2322 |
| DOI: | 10.1038/s41598-020-67418-3 |
| Popis: | We report on the synthesis and enhanced thermal conductivity of stable Ag-decorated 2-D graphene nanocomposite in ethylene glycol based nanofluid by laser liquid solid interaction. A surfactant free nanofluid of Ag nanoparticles anchored onto the 2-D graphene sheets were synthesized using a two-step laser liquid solid interaction approach. In order to understand a pulsed Nd:YAG laser at the fundamental frequency (λ = 1,064 nm) to ablate Ag and graphite composite target submerged in ethylene glycol (EG) to form AgNPs decorated 2-D GNs-EG based nanofluid. From a heat transfer point of view, it was observed that the thermal conductivity of this stable Ag-graphene/EG is significantly enhanced by a factor of about 32.3%; this is highest reported value for a graphene based nanofluid. |
| Databáze: | OpenAIRE |
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