Shape dependent heat transport through green synthesized gold nanofluids

Jisha John, Lincy Thomas, B. Rajesh Kumar, Achamma Kurian, Sajan D. George

Research output: Contribution to journalArticle

7 Citations (Scopus)

Abstract

Nanofluids hold promise as a more efficient coolant for thermoelectric devices. Despite the capability of tailoring the thermo physical properties of nanofluids, by tuning the particle parameters such as shape, size and concentration, the toxicity of chemicals used for the preparation of nanoparticles is a serious concern. Green synthesis of nanoparticles is emerging as an alternative to the conventional chemical and physical methods for the preparation of nanoparticles. In this work, the results of the preparation of gold nanoparticles using plant extracts as reducing agents are presented. The green synthesis route employed for the present study provides particles of similar size, but the shape of the particles is found to vary depending upon the source of the natural reducing agents. The thermal diffusivity values of the gold nanofluid measured using laser based dual beam thermal lens technique elucidate the role of shape and concentration of the green synthesized nanoparticles on the effective thermal diffusivity values of the nanofluids.

Original languageEnglish
Article number335301
JournalJournal of Physics D: Applied Physics
Volume48
Issue number33
DOIs
Publication statusPublished - 26-08-2015

Fingerprint

Gold
gold
Nanoparticles
heat
nanoparticles
Thermal diffusivity
Reducing Agents
Reducing agents
thermal diffusivity
preparation
Plant extracts
thermal lensing
Plant Extracts
thermophysical properties
coolants
synthesis
toxicity
Coolants
Toxicity
Lenses

All Science Journal Classification (ASJC) codes

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics
  • Acoustics and Ultrasonics
  • Surfaces, Coatings and Films

Cite this

John, Jisha ; Thomas, Lincy ; Kumar, B. Rajesh ; Kurian, Achamma ; George, Sajan D. / Shape dependent heat transport through green synthesized gold nanofluids. In: Journal of Physics D: Applied Physics. 2015 ; Vol. 48, No. 33.
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Shape dependent heat transport through green synthesized gold nanofluids. / John, Jisha; Thomas, Lincy; Kumar, B. Rajesh; Kurian, Achamma; George, Sajan D.

In: Journal of Physics D: Applied Physics, Vol. 48, No. 33, 335301, 26.08.2015.

Research output: Contribution to journalArticle

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