Preparation and characterization of expanded graphite/Ag nanoparticle composites for the improvement of thermal diffusion

Seok Hwan Hong; Won Gyu Lee

Korean Chemical Engineering Research, Vol.56, No.3, 410-415, June, 2018

DOI10.9713/kcer.2018.56.3.410 Export Citation

Preparation and characterization of expanded graphite/Ag nanoparticle composites for the improvement of thermal diffusion

Seok Hwan Hong, and Won Gyu Lee^†

Department of Chemical Engineering, Kangwon National University, 1, Gangwondaehak-gil, Chuncheon-si, Gangwon-do, 24341, Korea

E-mail:

Expanded graphite (EG)/Ag nanoparticle composites were synthesized by the chemical reduction of Ag ions, followed by the addition of expanded graphite into an Ag reducing solution. The prepared composites showed uniform dispersion of Ag nanoparticles on the surface of expanded graphite and exhibited relatively higher thermal conductivities than those of pure expanded graphite. In the case of 10% Ag content in the composite, the thermal conductivity in the thickness direction was 78% higher than the pure expanded graphite. We suggest that EG/Ag nanoparticle composites are a strong candidate for advanced heat spreading material.

Keywords:Silver nanoparticles;Expanded graphite;Composite;Heat spreader;Thermal conductivity

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[2] Nair LS, Laurencin CT, J. Biomed, Nanotech., 3, 301 (2007)

[3] Evanoff DD, Chumanov G, Chem. Phys. Chem., 6, 1221 (2005)

[4] Haque MN, Kwon SH, Cho DC, Korean J. Chem. Eng., 34(7), 2072 (2017)

[5] Nagar N, Jain S, Kachhawah P, Devra V, Korean J. Chem. Eng., 33(10), 2990 (2016)

[6] Agnihotri S, Mukherji S, Mukherji S, RSC Adv., 4, 3974 (2014)

[7] Georgakilas V, Gournis D, Tzitzios V, Pasquato L, Guldi DM, Prato M, J. Mater. Chem., 17, 2679 (2007)

[8] Peng XH, Chen JY, Misewich JA, Wong SS, Chem. Soc. Rev., 38, 1076 (2009)

[9] Guo S, Dong S, Chem. Soc. Rev., 40, 2644 (2011)

[10] Ren W, Fang YX, Wang EK, ACS Nano, 5, 6425 (2011)

[11] Jasuja K, Berry V, ACS Nano, 3, 2385 (2009)

[12] Liu RJ, Li SW, Yu XL, Zhang GJ, Zhang SL, Yao JN, Keita B, Nadjo L, Zhi LJ, Small, 8, 1398 (2012)

[13] Mastalir A, Kiraly Z, Patzko A, Dekany I, Largentiere P, Carbon, 46, 1631 (2008)

[14] Scheuermann GM, Rumi L, Steurer P, Bannwarth W, Mulhaupt R, J. Am. Chem. Soc., 131(23), 8262 (2009)

[15] Hong H, Kim JU, Kim T, Polymer, 9, 413 (2017)

[16] Jagannadham K, Solid State Electron., 42, 2199 (1998)

[17] Steinigeweg D, Schlucker S, Chem. Commun., 48, 8682 (2012)

[18] Creighton JA, Blatchford CG, Albrecht MG, J. Chem. Soc.-Dalton Trans., 75, 790 (1979)

[19] Pyatenko A, Yamaguchi M, Suzuki M, J. Phys. Chem. C, 111, 7910 (2007)

[20] Dong X, Ji X, Wu H, Zhao L, Li J, Yang W, J. Phys. Chem. C, 113, 6573 (2009)

[21] Sharma VK, Yngard RA, Lin Y, Adv. Colloid Interface Sci., 145, 83 (2009)

[22] Afanasov IM, Savchenko DV, Ionov SG, Rusakov DA, Seleznev AN, Avdeev VV, Inorg. Mater., 45, 486 (2009)