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Experimental and numerical investigation of the effective electrical conductivity of nitrogen-doped graphene nanofluids

Electrical conductivity is an important property for technological applications of nanofluids that have not been widely investigated, and few studies have been concerned about the electrical conductivity. In this study, nitrogen-doped graphene (NDG) nanofluids were prepared using the two-step method...

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Main Authors: Mehrali, M., Sadeghinezhad, E., Rashidi, M.M., Akhiani, A.R., Latibari, S.T., Metselaar, H.S.C.
Format: Article
Language:English
Published: Springer Verlag 2015
Subjects:
T Technology (General)
TA Engineering (General). Civil engineering (General)
TJ Mechanical engineering and machinery
Online Access:http://eprints.um.edu.my/15786/1/Experimental_and_numerical_investigation_of_the_effective_electrical_conductivity_of_nitrogen.pdf
http://eprints.um.edu.my/15786/
http://link.springer.com/article/10.1007/s11051-015-3062-x
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spelling my.um.eprints.157862019-10-07T01:45:27Z http://eprints.um.edu.my/15786/ Experimental and numerical investigation of the effective electrical conductivity of nitrogen-doped graphene nanofluids Mehrali, M. Sadeghinezhad, E. Rashidi, M.M. Akhiani, A.R. Latibari, S.T. Mehrali, M. Metselaar, H.S.C. T Technology (General) TA Engineering (General). Civil engineering (General) TJ Mechanical engineering and machinery Electrical conductivity is an important property for technological applications of nanofluids that have not been widely investigated, and few studies have been concerned about the electrical conductivity. In this study, nitrogen-doped graphene (NDG) nanofluids were prepared using the two-step method in an aqueous solution of 0.025 wt Triton X-100 as a surfactant at several concentrations (0.01, 0.02, 0.04, 0.06 wt). The electrical conductivity of the aqueous NDG nanofluids showed a linear dependence on the concentration and increased up to 1814.96 for a loading of 0.06 wt NDG nanosheet. From the experimental data, empirical models were developed to express the electrical conductivity as functions of temperature and concentration. It was observed that increasing the temperature has much greater effect on electrical conductivity enhancement than increasing the NDG nanosheet loading. Additionally, by considering the electrophoresis of the NDG nanosheets, a straightforward electrical conductivity model is established to modulate and understand the experimental results. Springer Verlag 2015-06 Article PeerReviewed application/pdf en http://eprints.um.edu.my/15786/1/Experimental_and_numerical_investigation_of_the_effective_electrical_conductivity_of_nitrogen.pdf Mehrali, M. and Sadeghinezhad, E. and Rashidi, M.M. and Akhiani, A.R. and Latibari, S.T. and Mehrali, M. and Metselaar, H.S.C. (2015) Experimental and numerical investigation of the effective electrical conductivity of nitrogen-doped graphene nanofluids. Journal of Nanoparticle Research, 17 (6). p. 17. ISSN 1388-0764 http://link.springer.com/article/10.1007/s11051-015-3062-x doi:10.1007/s11051-015-3062-x
institution Universiti Malaya
building UM Library
collection Institutional Repository
continent Asia
country Malaysia
content_provider Universiti Malaya
content_source UM Research Repository
url_provider http://eprints.um.edu.my/
language English
topic T Technology (General)
TA Engineering (General). Civil engineering (General)
TJ Mechanical engineering and machinery
spellingShingle T Technology (General)
TA Engineering (General). Civil engineering (General)
TJ Mechanical engineering and machinery
Mehrali, M.
Sadeghinezhad, E.
Rashidi, M.M.
Akhiani, A.R.
Latibari, S.T.
Mehrali, M.
Metselaar, H.S.C.
Experimental and numerical investigation of the effective electrical conductivity of nitrogen-doped graphene nanofluids
description Electrical conductivity is an important property for technological applications of nanofluids that have not been widely investigated, and few studies have been concerned about the electrical conductivity. In this study, nitrogen-doped graphene (NDG) nanofluids were prepared using the two-step method in an aqueous solution of 0.025 wt Triton X-100 as a surfactant at several concentrations (0.01, 0.02, 0.04, 0.06 wt). The electrical conductivity of the aqueous NDG nanofluids showed a linear dependence on the concentration and increased up to 1814.96 for a loading of 0.06 wt NDG nanosheet. From the experimental data, empirical models were developed to express the electrical conductivity as functions of temperature and concentration. It was observed that increasing the temperature has much greater effect on electrical conductivity enhancement than increasing the NDG nanosheet loading. Additionally, by considering the electrophoresis of the NDG nanosheets, a straightforward electrical conductivity model is established to modulate and understand the experimental results.
format Article
author Mehrali, M.
Sadeghinezhad, E.
Rashidi, M.M.
Akhiani, A.R.
Latibari, S.T.
Mehrali, M.
Metselaar, H.S.C.
author_facet Mehrali, M.
Sadeghinezhad, E.
Rashidi, M.M.
Akhiani, A.R.
Latibari, S.T.
Mehrali, M.
Metselaar, H.S.C.
author_sort Mehrali, M.
title Experimental and numerical investigation of the effective electrical conductivity of nitrogen-doped graphene nanofluids
title_short Experimental and numerical investigation of the effective electrical conductivity of nitrogen-doped graphene nanofluids
title_full Experimental and numerical investigation of the effective electrical conductivity of nitrogen-doped graphene nanofluids
title_fullStr Experimental and numerical investigation of the effective electrical conductivity of nitrogen-doped graphene nanofluids
title_full_unstemmed Experimental and numerical investigation of the effective electrical conductivity of nitrogen-doped graphene nanofluids
title_sort experimental and numerical investigation of the effective electrical conductivity of nitrogen-doped graphene nanofluids
publisher Springer Verlag
publishDate 2015
url http://eprints.um.edu.my/15786/1/Experimental_and_numerical_investigation_of_the_effective_electrical_conductivity_of_nitrogen.pdf
http://eprints.um.edu.my/15786/
http://link.springer.com/article/10.1007/s11051-015-3062-x
_version_ 1648736138599333888
score 13.211869

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