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Graphene Oxide and Nitrogen-Doped Graphene Coated Copper Nanoparticles in Water-Based Nanofluids for Thermal Management in Electronics
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- Zehri, Abdelhafid, 1989 (author)
- Chalmers tekniska högskola,Chalmers University of Technology
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- Nylander, Andreas, 1988 (author)
- Chalmers tekniska högskola,Chalmers University of Technology
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- Nilsson, Torbjörn, 1962 (author)
- Chalmers tekniska högskola,Chalmers University of Technology
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- Ye, Lilei (author)
- SHT Smart High-Tech AB
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- Fu, Yifeng, 1984 (author)
- Chalmers tekniska högskola,Chalmers University of Technology
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- Liu, Johan, 1960 (author)
- Chalmers tekniska högskola,Chalmers University of Technology
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(creator_code:org_t)
- American Scientific Publishers, 2022
- English.
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In: JOURNAL OF NANOFLUIDS. - : American Scientific Publishers. - 2169-432X .- 2169-4338. ; 11:1, s. 125-134
- Related links:
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https://doi.org/10.1...
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Abstract
Subject headings
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- Graphene oxide (GO) and nitrogen-doped graphene (NG) coated copper nanoparticles (NPs) have been developed in this work and investigated as nanofiller for water as Heat Transfer Fluids (HTFs). The morphology and composition of the coating were characterized to confirm the presence of functional groups and the nitrogen-doping of the graphene coating. Different fractions of the two types of coated nanoparticles NPs between 0.1 and 10 wt.% were dispersed in water. The thermal conductivity of the dispersions was evaluated at temperatures between 20 and 50 degrees C. A positive correlation between the thermal conductivity of the HTFs and the fraction and temperature are observed as a result of the increase of the solid phase contribution into the heat transfer. At a concentration of 0.5 wt.%, the thermal conductivity of the NG-CuNPs nanofluid reached its maximum increase of 78%, compared to a 13% increase in the case of GO-CuNPs. However, due to the poor stability of the NG-CuNPs, further increase of the solid phase did not result in any additional improvement. In contrast, the thermal conductivity of the GO-based dispersion resulted in a 103% enhancement at 10 wt.% at a temperature of 50 degrees C.
Subject headings
- NATURVETENSKAP -- Kemi -- Polymerkemi (hsv//swe)
- NATURAL SCIENCES -- Chemical Sciences -- Polymer Chemistry (hsv//eng)
- TEKNIK OCH TEKNOLOGIER -- Materialteknik -- Keramteknik (hsv//swe)
- ENGINEERING AND TECHNOLOGY -- Materials Engineering -- Ceramics (hsv//eng)
- NATURVETENSKAP -- Kemi -- Materialkemi (hsv//swe)
- NATURAL SCIENCES -- Chemical Sciences -- Materials Chemistry (hsv//eng)
Keyword
- Nanofluids
- Fraction of Nanoparticles
- Thermal Management
- Graphene Coating
- Copper Nanoparticles
Publication and Content Type
- art (subject category)
- ref (subject category)
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